./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.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_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/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_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/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_a5b1163c-a135-43b7-84ec-f44b412e6356/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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:20:01,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:20:01,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-01 13:20:01,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:20:01,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:20:01,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:20:01,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:20:01,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:20:01,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 13:20:01,484 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 13:20:01,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:20:01,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:20:01,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:20:01,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:20:01,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:20:01,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:20:01,487 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:01,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:20:01,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:01,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:20:01,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:20:01,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:20:01,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:20:01,489 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_a5b1163c-a135-43b7-84ec-f44b412e6356/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 -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2024-12-01 13:20:01,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:20:01,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:20:01,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:20:01,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:20:01,721 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:20:01,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-12-01 13:20:04,342 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/data/f1c4e7294/ee6b0940b766412983b7e0fad8f8d6ad/FLAG89cd4594a [2024-12-01 13:20:04,587 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:20:04,588 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2024-12-01 13:20:04,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/data/f1c4e7294/ee6b0940b766412983b7e0fad8f8d6ad/FLAG89cd4594a [2024-12-01 13:20:04,929 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/data/f1c4e7294/ee6b0940b766412983b7e0fad8f8d6ad [2024-12-01 13:20:04,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:20:04,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:20:04,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:04,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:20:04,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:20:04,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d53927c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:04, skipping insertion in model container [2024-12-01 13:20:04,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:20:04" (1/1) ... [2024-12-01 13:20:04,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:20:05,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:05,104 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:20:05,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:20:05,145 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:20:05,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05 WrapperNode [2024-12-01 13:20:05,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:20:05,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:05,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:20:05,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:20:05,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,184 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 360 [2024-12-01 13:20:05,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:20:05,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:20:05,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:20:05,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:20:05,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,197 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,213 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-12-01 13:20:05,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,223 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:20:05,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:20:05,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:20:05,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:20:05,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (1/1) ... [2024-12-01 13:20:05,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:20:05,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:05,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:20:05,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-01 13:20:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-01 13:20:05,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-01 13:20:05,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-12-01 13:20:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-12-01 13:20:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-01 13:20:05,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:20:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:20:05,284 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 13:20:05,382 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:20:05,384 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:20:05,848 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 13:20:05,848 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:20:06,367 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:20:06,367 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-01 13:20:06,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:06 BoogieIcfgContainer [2024-12-01 13:20:06,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:20:06,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:20:06,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:20:06,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:20:06,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:20:04" (1/3) ... [2024-12-01 13:20:06,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:06, skipping insertion in model container [2024-12-01 13:20:06,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:20:05" (2/3) ... [2024-12-01 13:20:06,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:20:06, skipping insertion in model container [2024-12-01 13:20:06,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:20:06" (3/3) ... [2024-12-01 13:20:06,377 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2024-12-01 13:20:06,392 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:20:06,393 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1.wvr.c that has 5 procedures, 84 locations, 1 initial locations, 5 loop locations, and 36 error locations. [2024-12-01 13:20:06,394 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 13:20:06,542 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-01 13:20:06,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 212 flow [2024-12-01 13:20:06,623 INFO L124 PetriNetUnfolderBase]: 9/88 cut-off events. [2024-12-01 13:20:06,625 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-12-01 13:20:06,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 88 events. 9/88 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 278 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-12-01 13:20:06,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 212 flow [2024-12-01 13:20:06,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 193 flow [2024-12-01 13:20:06,640 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:20:06,651 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;@f07a5c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:20:06,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-12-01 13:20:06,654 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 13:20:06,654 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-12-01 13:20:06,654 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 13:20:06,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:06,655 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-12-01 13:20:06,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:20:06,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash 38236, now seen corresponding path program 1 times [2024-12-01 13:20:06,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:06,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81352403] [2024-12-01 13:20:06,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:06,837 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 13:20:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81352403] [2024-12-01 13:20:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81352403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-01 13:20:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46770466] [2024-12-01 13:20:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:06,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:06,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:06,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:06,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-12-01 13:20:06,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:20:06,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:06,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-12-01 13:20:06,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:20:27,381 INFO L124 PetriNetUnfolderBase]: 219675/283943 cut-off events. [2024-12-01 13:20:27,381 INFO L125 PetriNetUnfolderBase]: For 8874/8874 co-relation queries the response was YES. [2024-12-01 13:20:27,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574808 conditions, 283943 events. 219675/283943 cut-off events. For 8874/8874 co-relation queries the response was YES. Maximal size of possible extension queue 10309. Compared 1812835 event pairs, 200512 based on Foata normal form. 1/149749 useless extension candidates. Maximal degree in co-relation 553761. Up to 283720 conditions per place. [2024-12-01 13:20:28,749 INFO L140 encePairwiseOnDemand]: 78/92 looper letters, 64 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2024-12-01 13:20:28,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 73 transitions, 297 flow [2024-12-01 13:20:28,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 13:20:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-12-01 13:20:28,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41304347826086957 [2024-12-01 13:20:28,766 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 193 flow. Second operand 3 states and 114 transitions. [2024-12-01 13:20:28,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 73 transitions, 297 flow [2024-12-01 13:20:28,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 284 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-12-01 13:20:28,938 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 156 flow [2024-12-01 13:20:28,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2024-12-01 13:20:28,944 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -14 predicate places. [2024-12-01 13:20:28,944 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 156 flow [2024-12-01 13:20:28,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:20:28,944 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:28,944 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-01 13:20:28,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:20:28,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:20:28,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1186515, now seen corresponding path program 1 times [2024-12-01 13:20:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133781135] [2024-12-01 13:20:28,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:28,988 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 13:20:28,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133781135] [2024-12-01 13:20:28,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133781135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:28,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:28,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-01 13:20:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326397100] [2024-12-01 13:20:28,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:28,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:20:28,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:28,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:20:28,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:20:28,996 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-12-01 13:20:28,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:20:28,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:28,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-12-01 13:20:28,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:20:42,232 INFO L124 PetriNetUnfolderBase]: 160716/207848 cut-off events. [2024-12-01 13:20:42,232 INFO L125 PetriNetUnfolderBase]: For 1632/1632 co-relation queries the response was YES. [2024-12-01 13:20:42,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419130 conditions, 207848 events. 160716/207848 cut-off events. For 1632/1632 co-relation queries the response was YES. Maximal size of possible extension queue 7502. Compared 1287547 event pairs, 145534 based on Foata normal form. 0/116694 useless extension candidates. Maximal degree in co-relation 419124. Up to 207665 conditions per place. [2024-12-01 13:20:43,167 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 59 selfloop transitions, 1 changer transitions 0/68 dead transitions. [2024-12-01 13:20:43,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 266 flow [2024-12-01 13:20:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:20:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 13:20:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-12-01 13:20:43,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36594202898550726 [2024-12-01 13:20:43,169 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 156 flow. Second operand 3 states and 101 transitions. [2024-12-01 13:20:43,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 266 flow [2024-12-01 13:20:43,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 68 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:20:43,173 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 147 flow [2024-12-01 13:20:43,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2024-12-01 13:20:43,175 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -18 predicate places. [2024-12-01 13:20:43,175 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 147 flow [2024-12-01 13:20:43,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:20:43,175 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:43,175 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-01 13:20:43,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 13:20:43,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:20:43,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1140278308, now seen corresponding path program 1 times [2024-12-01 13:20:43,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:43,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259999122] [2024-12-01 13:20:43,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:43,291 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 13:20:43,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:43,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259999122] [2024-12-01 13:20:43,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259999122] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:43,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:43,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:20:43,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961112367] [2024-12-01 13:20:43,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:43,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 13:20:43,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:43,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 13:20:43,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 13:20:43,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-12-01 13:20:43,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 13:20:43,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:43,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-12-01 13:20:43,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:20:56,736 INFO L124 PetriNetUnfolderBase]: 160717/207852 cut-off events. [2024-12-01 13:20:56,737 INFO L125 PetriNetUnfolderBase]: For 1632/1632 co-relation queries the response was YES. [2024-12-01 13:20:56,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419140 conditions, 207852 events. 160717/207852 cut-off events. For 1632/1632 co-relation queries the response was YES. Maximal size of possible extension queue 7502. Compared 1287153 event pairs, 145534 based on Foata normal form. 1/116698 useless extension candidates. Maximal degree in co-relation 419133. Up to 207669 conditions per place. [2024-12-01 13:20:57,563 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 61 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2024-12-01 13:20:57,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 283 flow [2024-12-01 13:20:57,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 13:20:57,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 13:20:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-12-01 13:20:57,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3125 [2024-12-01 13:20:57,566 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 147 flow. Second operand 4 states and 115 transitions. [2024-12-01 13:20:57,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 283 flow [2024-12-01 13:20:57,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:20:57,569 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 175 flow [2024-12-01 13:20:57,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2024-12-01 13:20:57,570 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -14 predicate places. [2024-12-01 13:20:57,570 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 175 flow [2024-12-01 13:20:57,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 13:20:57,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:57,571 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:57,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:20:57,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:20:57,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:57,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1135906703, now seen corresponding path program 1 times [2024-12-01 13:20:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367986055] [2024-12-01 13:20:57,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:57,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:57,683 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 13:20:57,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:57,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367986055] [2024-12-01 13:20:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367986055] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526200401] [2024-12-01 13:20:57,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:57,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:20:57,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:57,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:20:57,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:20:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:57,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:20:57,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:57,834 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 13:20:57,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 13:20:57,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526200401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:57,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 13:20:57,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-01 13:20:57,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65699998] [2024-12-01 13:20:57,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:57,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:20:57,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:57,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:20:57,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-01 13:20:57,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-12-01 13:20:57,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 13:20:57,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:57,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-12-01 13:20:57,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:21:10,784 INFO L124 PetriNetUnfolderBase]: 160717/207851 cut-off events. [2024-12-01 13:21:10,784 INFO L125 PetriNetUnfolderBase]: For 1637/1637 co-relation queries the response was YES. [2024-12-01 13:21:11,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419151 conditions, 207851 events. 160717/207851 cut-off events. For 1637/1637 co-relation queries the response was YES. Maximal size of possible extension queue 7502. Compared 1287351 event pairs, 145534 based on Foata normal form. 1/116698 useless extension candidates. Maximal degree in co-relation 419142. Up to 207664 conditions per place. [2024-12-01 13:21:11,753 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 57 selfloop transitions, 7 changer transitions 0/70 dead transitions. [2024-12-01 13:21:11,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 70 transitions, 299 flow [2024-12-01 13:21:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:21:11,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:21:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2024-12-01 13:21:11,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24818840579710144 [2024-12-01 13:21:11,755 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 175 flow. Second operand 6 states and 137 transitions. [2024-12-01 13:21:11,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 70 transitions, 299 flow [2024-12-01 13:21:11,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 70 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:21:11,759 INFO L231 Difference]: Finished difference. Result has 79 places, 70 transitions, 182 flow [2024-12-01 13:21:11,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=182, PETRI_PLACES=79, PETRI_TRANSITIONS=70} [2024-12-01 13:21:11,760 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -11 predicate places. [2024-12-01 13:21:11,760 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 70 transitions, 182 flow [2024-12-01 13:21:11,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 13:21:11,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:21:11,761 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-12-01 13:21:11,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:21:11,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:11,961 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:21:11,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 853370611, now seen corresponding path program 1 times [2024-12-01 13:21:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:11,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006466950] [2024-12-01 13:21:11,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:12,053 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 13:21:12,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:12,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006466950] [2024-12-01 13:21:12,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006466950] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:12,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553427158] [2024-12-01 13:21:12,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:12,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:12,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:21:12,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:21:12,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:21:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:12,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 13:21:12,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:21:12,181 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 13:21:12,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:12,223 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 13:21:12,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553427158] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:21:12,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:21:12,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-01 13:21:12,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114402005] [2024-12-01 13:21:12,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:21:12,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 13:21:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:12,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 13:21:12,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:21:12,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 92 [2024-12-01 13:21:12,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 70 transitions, 182 flow. Second operand has 12 states, 12 states have (on average 13.166666666666666) internal successors, (158), 12 states have internal predecessors, (158), 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 13:21:12,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:21:12,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 92 [2024-12-01 13:21:12,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:21:25,711 INFO L124 PetriNetUnfolderBase]: 160720/207863 cut-off events. [2024-12-01 13:21:25,711 INFO L125 PetriNetUnfolderBase]: For 1654/1654 co-relation queries the response was YES. [2024-12-01 13:21:26,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419195 conditions, 207863 events. 160720/207863 cut-off events. For 1654/1654 co-relation queries the response was YES. Maximal size of possible extension queue 7502. Compared 1287317 event pairs, 145534 based on Foata normal form. 3/116710 useless extension candidates. Maximal degree in co-relation 419186. Up to 207671 conditions per place. [2024-12-01 13:21:26,519 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 60 selfloop transitions, 13 changer transitions 0/79 dead transitions. [2024-12-01 13:21:26,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 382 flow [2024-12-01 13:21:26,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:21:26,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-01 13:21:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2024-12-01 13:21:26,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21304347826086956 [2024-12-01 13:21:26,522 INFO L175 Difference]: Start difference. First operand has 79 places, 70 transitions, 182 flow. Second operand 10 states and 196 transitions. [2024-12-01 13:21:26,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 79 transitions, 382 flow [2024-12-01 13:21:26,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 79 transitions, 336 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-12-01 13:21:26,527 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 234 flow [2024-12-01 13:21:26,527 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=234, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2024-12-01 13:21:26,528 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -4 predicate places. [2024-12-01 13:21:26,528 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 234 flow [2024-12-01 13:21:26,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.166666666666666) internal successors, (158), 12 states have internal predecessors, (158), 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 13:21:26,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:21:26,529 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:26,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:21:26,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b1163c-a135-43b7-84ec-f44b412e6356/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:26,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2024-12-01 13:21:26,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 980127856, now seen corresponding path program 1 times [2024-12-01 13:21:26,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:26,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288301579] [2024-12-01 13:21:26,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:21:26,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:21:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:21:26,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:26,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288301579] [2024-12-01 13:21:26,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288301579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:26,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:26,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-01 13:21:26,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882687935] [2024-12-01 13:21:26,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:26,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:21:26,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:26,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:21:26,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:21:26,788 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 92 [2024-12-01 13:21:26,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 13:21:26,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:21:26,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 92 [2024-12-01 13:21:26,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand