./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread/triangular-longest-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/triangular-longest-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd --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 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:02:30,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:02:30,217 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:02:30,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:02:30,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:02:30,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:02:30,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:02:30,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:02:30,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:02:30,274 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:02:30,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:02:30,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:02:30,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:02:30,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:02:30,278 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:02:30,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:02:30,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:02:30,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:02:30,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:02:30,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:02:30,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:02:30,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:02:30,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:02:30,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:02:30,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:02:30,283 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_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd 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 -> 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 [2024-11-13 16:02:30,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:02:30,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:02:30,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:02:30,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:02:30,742 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:02:30,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread/triangular-longest-2.i Unable to find full path for "g++" [2024-11-13 16:02:33,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:02:33,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:02:33,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/sv-benchmarks/c/pthread/triangular-longest-2.i [2024-11-13 16:02:33,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/data/43120d481/21d06356aecc418fa9a1ba5acf3e30b5/FLAG7674fe89c [2024-11-13 16:02:33,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/data/43120d481/21d06356aecc418fa9a1ba5acf3e30b5 [2024-11-13 16:02:33,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:02:33,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:02:33,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:02:33,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:02:33,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:02:33,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:02:33" (1/1) ... [2024-11-13 16:02:33,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f45b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:33, skipping insertion in model container [2024-11-13 16:02:33,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:02:33" (1/1) ... [2024-11-13 16:02:33,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:02:34,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:02:34,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:02:34,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:02:34,450 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:02:34,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34 WrapperNode [2024-11-13 16:02:34,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:02:34,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:02:34,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:02:34,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:02:34,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,531 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-11-13 16:02:34,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:02:34,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:02:34,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:02:34,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:02:34,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,575 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 16:02:34,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,597 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:02:34,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:02:34,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:02:34,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:02:34,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (1/1) ... [2024-11-13 16:02:34,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:02:34,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:34,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:02:34,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:02:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-13 16:02:34,668 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-13 16:02:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-13 16:02:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-13 16:02:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 16:02:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:02:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:02:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 16:02:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:02:34,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:02:34,670 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:02:34,808 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:02:34,810 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:02:35,044 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:02:35,044 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:02:35,205 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:02:35,206 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 16:02:35,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:02:35 BoogieIcfgContainer [2024-11-13 16:02:35,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:02:35,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:02:35,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:02:35,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:02:35,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:02:33" (1/3) ... [2024-11-13 16:02:35,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85f6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:02:35, skipping insertion in model container [2024-11-13 16:02:35,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:34" (2/3) ... [2024-11-13 16:02:35,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85f6ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:02:35, skipping insertion in model container [2024-11-13 16:02:35,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:02:35" (3/3) ... [2024-11-13 16:02:35,224 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longest-2.i [2024-11-13 16:02:35,246 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:02:35,248 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longest-2.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-11-13 16:02:35,248 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:02:35,337 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 16:02:35,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 72 flow [2024-11-13 16:02:35,442 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-11-13 16:02:35,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:02:35,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 73 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-13 16:02:35,450 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 72 flow [2024-11-13 16:02:35,454 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 66 flow [2024-11-13 16:02:35,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:02:35,478 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;@77880c29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:02:35,479 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 16:02:35,487 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:02:35,487 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-13 16:02:35,487 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:02:35,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:35,489 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:02:35,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:35,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:35,496 INFO L85 PathProgramCache]: Analyzing trace with hash 211802121, now seen corresponding path program 1 times [2024-11-13 16:02:35,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:35,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161942570] [2024-11-13 16:02:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:35,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:35,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161942570] [2024-11-13 16:02:35,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161942570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:35,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:35,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:02:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431391096] [2024-11-13 16:02:35,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:35,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:02:35,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:35,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:02:35,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:02:35,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:35,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-13 16:02:35,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:35,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:35,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:36,320 INFO L124 PetriNetUnfolderBase]: 288/572 cut-off events. [2024-11-13 16:02:36,321 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:02:36,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 572 events. 288/572 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3049 event pairs, 118 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 1045. Up to 241 conditions per place. [2024-11-13 16:02:36,337 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-11-13 16:02:36,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 150 flow [2024-11-13 16:02:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:02:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:02:36,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-13 16:02:36,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2024-11-13 16:02:36,364 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 73 transitions. [2024-11-13 16:02:36,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 150 flow [2024-11-13 16:02:36,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:02:36,384 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2024-11-13 16:02:36,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-13 16:02:36,396 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2024-11-13 16:02:36,397 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2024-11-13 16:02:36,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-13 16:02:36,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:36,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:02:36,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:02:36,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:36,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash 211802122, now seen corresponding path program 1 times [2024-11-13 16:02:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:36,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590859617] [2024-11-13 16:02:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:36,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590859617] [2024-11-13 16:02:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590859617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:02:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831417964] [2024-11-13 16:02:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:36,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:02:36,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:02:36,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:02:36,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:36,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-13 16:02:36,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:36,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:36,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:36,710 INFO L124 PetriNetUnfolderBase]: 279/583 cut-off events. [2024-11-13 16:02:36,710 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-13 16:02:36,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 583 events. 279/583 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3026 event pairs, 102 based on Foata normal form. 16/530 useless extension candidates. Maximal degree in co-relation 1151. Up to 266 conditions per place. [2024-11-13 16:02:36,722 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2024-11-13 16:02:36,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 174 flow [2024-11-13 16:02:36,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:02:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:02:36,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-13 16:02:36,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-13 16:02:36,725 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 3 states and 72 transitions. [2024-11-13 16:02:36,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 174 flow [2024-11-13 16:02:36,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:02:36,729 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2024-11-13 16:02:36,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-11-13 16:02:36,730 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2024-11-13 16:02:36,730 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2024-11-13 16:02:36,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-13 16:02:36,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:36,731 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:36,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:02:36,731 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:36,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1678383820, now seen corresponding path program 1 times [2024-11-13 16:02:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716477700] [2024-11-13 16:02:36,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:36,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:36,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716477700] [2024-11-13 16:02:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716477700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:36,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:02:36,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251519307] [2024-11-13 16:02:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:36,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:36,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:36,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:36,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-13 16:02:36,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-13 16:02:36,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:36,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-13 16:02:36,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:37,350 INFO L124 PetriNetUnfolderBase]: 661/1318 cut-off events. [2024-11-13 16:02:37,350 INFO L125 PetriNetUnfolderBase]: For 433/433 co-relation queries the response was YES. [2024-11-13 16:02:37,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1318 events. 661/1318 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8108 event pairs, 260 based on Foata normal form. 64/1231 useless extension candidates. Maximal degree in co-relation 2730. Up to 721 conditions per place. [2024-11-13 16:02:37,365 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-13 16:02:37,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 302 flow [2024-11-13 16:02:37,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:02:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:02:37,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-13 16:02:37,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2024-11-13 16:02:37,370 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 4 states and 93 transitions. [2024-11-13 16:02:37,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 302 flow [2024-11-13 16:02:37,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:37,374 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 120 flow [2024-11-13 16:02:37,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-11-13 16:02:37,378 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-13 16:02:37,378 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 120 flow [2024-11-13 16:02:37,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-13 16:02:37,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:37,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:37,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:02:37,379 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:37,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:37,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1669869553, now seen corresponding path program 1 times [2024-11-13 16:02:37,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:37,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384871132] [2024-11-13 16:02:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:37,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:37,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:37,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384871132] [2024-11-13 16:02:37,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384871132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:37,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:37,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:02:37,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469769240] [2024-11-13 16:02:37,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:37,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:02:37,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:37,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:02:37,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:02:37,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:37,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-13 16:02:37,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:37,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:37,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:37,739 INFO L124 PetriNetUnfolderBase]: 439/1042 cut-off events. [2024-11-13 16:02:37,739 INFO L125 PetriNetUnfolderBase]: For 448/448 co-relation queries the response was YES. [2024-11-13 16:02:37,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2341 conditions, 1042 events. 439/1042 cut-off events. For 448/448 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6779 event pairs, 151 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 2326. Up to 459 conditions per place. [2024-11-13 16:02:37,751 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-11-13 16:02:37,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 267 flow [2024-11-13 16:02:37,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:02:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:02:37,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-13 16:02:37,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.78125 [2024-11-13 16:02:37,755 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 120 flow. Second operand 3 states and 75 transitions. [2024-11-13 16:02:37,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 267 flow [2024-11-13 16:02:37,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:37,761 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 140 flow [2024-11-13 16:02:37,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2024-11-13 16:02:37,763 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2024-11-13 16:02:37,764 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 140 flow [2024-11-13 16:02:37,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-13 16:02:37,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:37,764 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:37,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:02:37,767 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:37,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1669869554, now seen corresponding path program 1 times [2024-11-13 16:02:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:37,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051547339] [2024-11-13 16:02:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:37,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:37,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051547339] [2024-11-13 16:02:37,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051547339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:37,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:37,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:02:37,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814063647] [2024-11-13 16:02:37,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:37,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:02:37,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:37,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:02:37,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:02:37,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:37,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-13 16:02:37,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:37,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:37,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:38,103 INFO L124 PetriNetUnfolderBase]: 417/1032 cut-off events. [2024-11-13 16:02:38,104 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2024-11-13 16:02:38,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 1032 events. 417/1032 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6801 event pairs, 117 based on Foata normal form. 24/1015 useless extension candidates. Maximal degree in co-relation 2454. Up to 483 conditions per place. [2024-11-13 16:02:38,118 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2024-11-13 16:02:38,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 290 flow [2024-11-13 16:02:38,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:02:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:02:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-11-13 16:02:38,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2024-11-13 16:02:38,123 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 140 flow. Second operand 3 states and 74 transitions. [2024-11-13 16:02:38,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 290 flow [2024-11-13 16:02:38,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:02:38,128 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 154 flow [2024-11-13 16:02:38,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2024-11-13 16:02:38,129 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2024-11-13 16:02:38,129 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 154 flow [2024-11-13 16:02:38,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-13 16:02:38,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:38,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:38,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:02:38,130 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:38,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1573119468, now seen corresponding path program 1 times [2024-11-13 16:02:38,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:38,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482422339] [2024-11-13 16:02:38,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:38,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:38,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:38,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482422339] [2024-11-13 16:02:38,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482422339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:38,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:38,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:02:38,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882132014] [2024-11-13 16:02:38,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:38,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:38,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:38,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:38,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:38,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-13 16:02:38,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 154 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) [2024-11-13 16:02:38,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:38,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-13 16:02:38,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:38,582 INFO L124 PetriNetUnfolderBase]: 661/1357 cut-off events. [2024-11-13 16:02:38,582 INFO L125 PetriNetUnfolderBase]: For 1033/1149 co-relation queries the response was YES. [2024-11-13 16:02:38,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3382 conditions, 1357 events. 661/1357 cut-off events. For 1033/1149 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8942 event pairs, 378 based on Foata normal form. 87/1394 useless extension candidates. Maximal degree in co-relation 3363. Up to 853 conditions per place. [2024-11-13 16:02:38,595 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 51 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-11-13 16:02:38,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 376 flow [2024-11-13 16:02:38,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:02:38,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:02:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-13 16:02:38,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6953125 [2024-11-13 16:02:38,599 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 154 flow. Second operand 4 states and 89 transitions. [2024-11-13 16:02:38,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 376 flow [2024-11-13 16:02:38,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:38,605 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 174 flow [2024-11-13 16:02:38,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2024-11-13 16:02:38,607 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2024-11-13 16:02:38,608 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 174 flow [2024-11-13 16:02:38,609 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) [2024-11-13 16:02:38,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:38,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:38,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:02:38,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:38,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:38,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1767654721, now seen corresponding path program 1 times [2024-11-13 16:02:38,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332537203] [2024-11-13 16:02:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:38,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:38,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:38,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:38,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332537203] [2024-11-13 16:02:38,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332537203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:38,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:38,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:02:38,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935819182] [2024-11-13 16:02:38,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:38,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:38,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:38,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:38,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:38,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:38,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:38,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:38,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:38,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:39,074 INFO L124 PetriNetUnfolderBase]: 553/1324 cut-off events. [2024-11-13 16:02:39,074 INFO L125 PetriNetUnfolderBase]: For 1098/1179 co-relation queries the response was YES. [2024-11-13 16:02:39,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3487 conditions, 1324 events. 553/1324 cut-off events. For 1098/1179 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9415 event pairs, 147 based on Foata normal form. 75/1348 useless extension candidates. Maximal degree in co-relation 3466. Up to 422 conditions per place. [2024-11-13 16:02:39,088 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 51 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-11-13 16:02:39,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 435 flow [2024-11-13 16:02:39,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:02:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 16:02:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-13 16:02:39,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.74375 [2024-11-13 16:02:39,090 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 174 flow. Second operand 5 states and 119 transitions. [2024-11-13 16:02:39,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 435 flow [2024-11-13 16:02:39,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:39,095 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 258 flow [2024-11-13 16:02:39,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-11-13 16:02:39,097 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2024-11-13 16:02:39,097 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 258 flow [2024-11-13 16:02:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:39,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:39,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:39,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:02:39,098 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:39,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:39,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1785702302, now seen corresponding path program 1 times [2024-11-13 16:02:39,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:39,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830662984] [2024-11-13 16:02:39,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:39,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:39,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:39,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830662984] [2024-11-13 16:02:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830662984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:39,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:39,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:02:39,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020668699] [2024-11-13 16:02:39,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:39,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:39,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:39,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:39,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:39,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:39,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:39,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:39,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:39,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:39,577 INFO L124 PetriNetUnfolderBase]: 608/1500 cut-off events. [2024-11-13 16:02:39,578 INFO L125 PetriNetUnfolderBase]: For 1768/1889 co-relation queries the response was YES. [2024-11-13 16:02:39,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4083 conditions, 1500 events. 608/1500 cut-off events. For 1768/1889 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 10885 event pairs, 81 based on Foata normal form. 68/1532 useless extension candidates. Maximal degree in co-relation 4058. Up to 509 conditions per place. [2024-11-13 16:02:39,594 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 55 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2024-11-13 16:02:39,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 545 flow [2024-11-13 16:02:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:02:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 16:02:39,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-13 16:02:39,596 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-13 16:02:39,596 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 258 flow. Second operand 5 states and 116 transitions. [2024-11-13 16:02:39,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 545 flow [2024-11-13 16:02:39,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 81 transitions, 543 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-13 16:02:39,607 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 328 flow [2024-11-13 16:02:39,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-11-13 16:02:39,608 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2024-11-13 16:02:39,610 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 328 flow [2024-11-13 16:02:39,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:39,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:39,611 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:39,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:02:39,612 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:39,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:39,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1835054654, now seen corresponding path program 1 times [2024-11-13 16:02:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:39,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561607958] [2024-11-13 16:02:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:39,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:39,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:39,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561607958] [2024-11-13 16:02:39,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561607958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:39,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:39,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:02:39,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071583715] [2024-11-13 16:02:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:39,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:39,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:39,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:39,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:39,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:39,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:39,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:39,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:39,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:40,140 INFO L124 PetriNetUnfolderBase]: 710/1711 cut-off events. [2024-11-13 16:02:40,141 INFO L125 PetriNetUnfolderBase]: For 3112/3238 co-relation queries the response was YES. [2024-11-13 16:02:40,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5002 conditions, 1711 events. 710/1711 cut-off events. For 3112/3238 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 12340 event pairs, 142 based on Foata normal form. 78/1738 useless extension candidates. Maximal degree in co-relation 4973. Up to 720 conditions per place. [2024-11-13 16:02:40,162 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 60 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2024-11-13 16:02:40,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 87 transitions, 643 flow [2024-11-13 16:02:40,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:02:40,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 16:02:40,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2024-11-13 16:02:40,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7625 [2024-11-13 16:02:40,164 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 328 flow. Second operand 5 states and 122 transitions. [2024-11-13 16:02:40,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 87 transitions, 643 flow [2024-11-13 16:02:40,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 630 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:40,180 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 427 flow [2024-11-13 16:02:40,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2024-11-13 16:02:40,183 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 34 predicate places. [2024-11-13 16:02:40,183 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 427 flow [2024-11-13 16:02:40,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:40,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:40,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:40,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:02:40,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:40,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:40,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1785709141, now seen corresponding path program 1 times [2024-11-13 16:02:40,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:40,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540443889] [2024-11-13 16:02:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:40,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:40,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:40,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:40,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540443889] [2024-11-13 16:02:40,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540443889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:40,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:40,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:02:40,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065554090] [2024-11-13 16:02:40,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:40,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:40,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:40,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:40,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:40,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:40,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:40,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:40,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:40,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:40,573 INFO L124 PetriNetUnfolderBase]: 558/1313 cut-off events. [2024-11-13 16:02:40,574 INFO L125 PetriNetUnfolderBase]: For 3780/3938 co-relation queries the response was YES. [2024-11-13 16:02:40,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3835 conditions, 1313 events. 558/1313 cut-off events. For 3780/3938 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8784 event pairs, 418 based on Foata normal form. 129/1361 useless extension candidates. Maximal degree in co-relation 3801. Up to 934 conditions per place. [2024-11-13 16:02:40,588 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 31 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2024-11-13 16:02:40,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 46 transitions, 352 flow [2024-11-13 16:02:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:02:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:02:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-13 16:02:40,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-13 16:02:40,592 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 427 flow. Second operand 3 states and 60 transitions. [2024-11-13 16:02:40,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 46 transitions, 352 flow [2024-11-13 16:02:40,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 46 transitions, 322 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 16:02:40,605 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 260 flow [2024-11-13 16:02:40,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2024-11-13 16:02:40,606 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2024-11-13 16:02:40,606 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 260 flow [2024-11-13 16:02:40,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-13 16:02:40,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:40,606 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:40,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:02:40,607 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:40,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1507344264, now seen corresponding path program 1 times [2024-11-13 16:02:40,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:40,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19433372] [2024-11-13 16:02:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:40,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:40,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19433372] [2024-11-13 16:02:40,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19433372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:40,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620771595] [2024-11-13 16:02:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:40,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:40,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:40,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:40,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:02:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:40,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:02:40,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:40,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:02:40,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620771595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:40,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:02:40,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-13 16:02:40,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571085093] [2024-11-13 16:02:40,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:40,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:02:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:02:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:02:41,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-13 16:02:41,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-13 16:02:41,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:41,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-13 16:02:41,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:41,509 INFO L124 PetriNetUnfolderBase]: 1036/2005 cut-off events. [2024-11-13 16:02:41,509 INFO L125 PetriNetUnfolderBase]: For 2333/2478 co-relation queries the response was YES. [2024-11-13 16:02:41,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5686 conditions, 2005 events. 1036/2005 cut-off events. For 2333/2478 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13150 event pairs, 145 based on Foata normal form. 122/2005 useless extension candidates. Maximal degree in co-relation 5660. Up to 785 conditions per place. [2024-11-13 16:02:41,541 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-11-13 16:02:41,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 72 transitions, 525 flow [2024-11-13 16:02:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:02:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:02:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-13 16:02:41,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.609375 [2024-11-13 16:02:41,543 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 260 flow. Second operand 4 states and 78 transitions. [2024-11-13 16:02:41,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 72 transitions, 525 flow [2024-11-13 16:02:41,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 524 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:02:41,557 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 267 flow [2024-11-13 16:02:41,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-11-13 16:02:41,558 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-11-13 16:02:41,558 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 267 flow [2024-11-13 16:02:41,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-13 16:02:41,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:41,558 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 16:02:41,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:02:41,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:41,759 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:41,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:41,760 INFO L85 PathProgramCache]: Analyzing trace with hash -516967834, now seen corresponding path program 1 times [2024-11-13 16:02:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065874051] [2024-11-13 16:02:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:41,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:41,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:02:41,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:41,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065874051] [2024-11-13 16:02:41,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065874051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:41,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:41,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:02:41,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217744399] [2024-11-13 16:02:41,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:41,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:41,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:41,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-13 16:02:41,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 267 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) [2024-11-13 16:02:41,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:41,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-13 16:02:41,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:42,271 INFO L124 PetriNetUnfolderBase]: 883/1891 cut-off events. [2024-11-13 16:02:42,271 INFO L125 PetriNetUnfolderBase]: For 2718/2799 co-relation queries the response was YES. [2024-11-13 16:02:42,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5512 conditions, 1891 events. 883/1891 cut-off events. For 2718/2799 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 12757 event pairs, 246 based on Foata normal form. 108/1971 useless extension candidates. Maximal degree in co-relation 5486. Up to 726 conditions per place. [2024-11-13 16:02:42,292 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-11-13 16:02:42,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 534 flow [2024-11-13 16:02:42,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:02:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:02:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-13 16:02:42,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.609375 [2024-11-13 16:02:42,294 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 267 flow. Second operand 4 states and 78 transitions. [2024-11-13 16:02:42,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 534 flow [2024-11-13 16:02:42,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 522 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 16:02:42,308 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 271 flow [2024-11-13 16:02:42,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-11-13 16:02:42,311 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2024-11-13 16:02:42,312 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 271 flow [2024-11-13 16:02:42,312 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) [2024-11-13 16:02:42,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:42,313 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:42,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:02:42,313 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:42,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash -242566517, now seen corresponding path program 1 times [2024-11-13 16:02:42,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:42,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703183499] [2024-11-13 16:02:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:42,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:42,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:42,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:42,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703183499] [2024-11-13 16:02:42,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703183499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:42,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657729075] [2024-11-13 16:02:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:42,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:42,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:42,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:42,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:02:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:42,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:02:42,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:42,587 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:02:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657729075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:02:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 16:02:42,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864325712] [2024-11-13 16:02:42,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:42,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:02:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:42,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:02:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:02:42,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-13 16:02:42,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 271 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) [2024-11-13 16:02:42,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:42,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-13 16:02:42,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:43,114 INFO L124 PetriNetUnfolderBase]: 845/1729 cut-off events. [2024-11-13 16:02:43,114 INFO L125 PetriNetUnfolderBase]: For 3284/3338 co-relation queries the response was YES. [2024-11-13 16:02:43,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5174 conditions, 1729 events. 845/1729 cut-off events. For 3284/3338 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11376 event pairs, 70 based on Foata normal form. 123/1774 useless extension candidates. Maximal degree in co-relation 5148. Up to 562 conditions per place. [2024-11-13 16:02:43,131 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 71 selfloop transitions, 6 changer transitions 1/87 dead transitions. [2024-11-13 16:02:43,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 686 flow [2024-11-13 16:02:43,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:02:43,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:02:43,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-11-13 16:02:43,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-13 16:02:43,133 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 271 flow. Second operand 6 states and 116 transitions. [2024-11-13 16:02:43,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 686 flow [2024-11-13 16:02:43,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:02:43,144 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 271 flow [2024-11-13 16:02:43,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-11-13 16:02:43,145 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2024-11-13 16:02:43,145 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 271 flow [2024-11-13 16:02:43,146 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) [2024-11-13 16:02:43,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:43,146 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:43,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:02:43,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 16:02:43,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:43,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:43,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1181298054, now seen corresponding path program 1 times [2024-11-13 16:02:43,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:43,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087697234] [2024-11-13 16:02:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:43,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:43,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:43,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087697234] [2024-11-13 16:02:43,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087697234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:43,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659419721] [2024-11-13 16:02:43,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:43,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:43,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:43,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:43,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:02:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:43,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:02:43,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:43,608 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:43,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659419721] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:02:43,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:02:43,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-13 16:02:43,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522578077] [2024-11-13 16:02:43,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:43,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:02:43,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:43,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:02:43,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:02:43,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:43,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 271 flow. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2024-11-13 16:02:43,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:43,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:43,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:44,172 INFO L124 PetriNetUnfolderBase]: 747/1715 cut-off events. [2024-11-13 16:02:44,173 INFO L125 PetriNetUnfolderBase]: For 3566/3614 co-relation queries the response was YES. [2024-11-13 16:02:44,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 1715 events. 747/1715 cut-off events. For 3566/3614 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10727 event pairs, 71 based on Foata normal form. 135/1829 useless extension candidates. Maximal degree in co-relation 5208. Up to 289 conditions per place. [2024-11-13 16:02:44,188 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 61 selfloop transitions, 12 changer transitions 4/89 dead transitions. [2024-11-13 16:02:44,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 89 transitions, 653 flow [2024-11-13 16:02:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:02:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 16:02:44,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-11-13 16:02:44,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-13 16:02:44,190 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 271 flow. Second operand 7 states and 160 transitions. [2024-11-13 16:02:44,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 89 transitions, 653 flow [2024-11-13 16:02:44,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 626 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-13 16:02:44,200 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 375 flow [2024-11-13 16:02:44,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=375, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-11-13 16:02:44,201 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-11-13 16:02:44,201 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 375 flow [2024-11-13 16:02:44,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2024-11-13 16:02:44,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:44,201 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:44,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:02:44,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 16:02:44,402 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:44,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1070372814, now seen corresponding path program 1 times [2024-11-13 16:02:44,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:44,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747132922] [2024-11-13 16:02:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:44,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:02:44,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:44,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747132922] [2024-11-13 16:02:44,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747132922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:02:44,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:02:44,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:02:44,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625349662] [2024-11-13 16:02:44,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:02:44,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:02:44,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:44,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:02:44,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:02:44,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-13 16:02:44,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 375 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 16:02:44,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:44,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-13 16:02:44,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:44,948 INFO L124 PetriNetUnfolderBase]: 1190/2263 cut-off events. [2024-11-13 16:02:44,949 INFO L125 PetriNetUnfolderBase]: For 5912/5957 co-relation queries the response was YES. [2024-11-13 16:02:44,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7489 conditions, 2263 events. 1190/2263 cut-off events. For 5912/5957 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 13455 event pairs, 275 based on Foata normal form. 153/2382 useless extension candidates. Maximal degree in co-relation 7457. Up to 893 conditions per place. [2024-11-13 16:02:44,968 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2024-11-13 16:02:44,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 740 flow [2024-11-13 16:02:44,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:02:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:02:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2024-11-13 16:02:44,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-11-13 16:02:44,970 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 375 flow. Second operand 4 states and 74 transitions. [2024-11-13 16:02:44,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 740 flow [2024-11-13 16:02:44,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 705 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-13 16:02:44,986 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 368 flow [2024-11-13 16:02:44,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-11-13 16:02:44,989 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-11-13 16:02:44,989 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 368 flow [2024-11-13 16:02:44,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-13 16:02:44,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:44,990 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:44,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:02:44,991 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:44,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:44,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1986643506, now seen corresponding path program 1 times [2024-11-13 16:02:44,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:44,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707324689] [2024-11-13 16:02:44,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:44,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:45,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:45,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707324689] [2024-11-13 16:02:45,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707324689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:45,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350805344] [2024-11-13 16:02:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:45,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:45,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:45,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:02:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:45,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:02:45,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:45,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:45,512 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:45,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350805344] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:02:45,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:02:45,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:02:45,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209088536] [2024-11-13 16:02:45,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:45,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:02:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:02:45,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:02:45,549 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:45,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 368 flow. Second operand has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2024-11-13 16:02:45,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:45,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:45,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:46,237 INFO L124 PetriNetUnfolderBase]: 972/2189 cut-off events. [2024-11-13 16:02:46,238 INFO L125 PetriNetUnfolderBase]: For 7431/7449 co-relation queries the response was YES. [2024-11-13 16:02:46,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7028 conditions, 2189 events. 972/2189 cut-off events. For 7431/7449 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13043 event pairs, 35 based on Foata normal form. 120/2306 useless extension candidates. Maximal degree in co-relation 6997. Up to 277 conditions per place. [2024-11-13 16:02:46,258 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 78 selfloop transitions, 17 changer transitions 17/124 dead transitions. [2024-11-13 16:02:46,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 124 transitions, 946 flow [2024-11-13 16:02:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 16:02:46,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 16:02:46,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 270 transitions. [2024-11-13 16:02:46,260 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.703125 [2024-11-13 16:02:46,261 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 368 flow. Second operand 12 states and 270 transitions. [2024-11-13 16:02:46,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 124 transitions, 946 flow [2024-11-13 16:02:46,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 909 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-13 16:02:46,277 INFO L231 Difference]: Finished difference. Result has 87 places, 52 transitions, 427 flow [2024-11-13 16:02:46,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=427, PETRI_PLACES=87, PETRI_TRANSITIONS=52} [2024-11-13 16:02:46,278 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2024-11-13 16:02:46,278 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 52 transitions, 427 flow [2024-11-13 16:02:46,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2024-11-13 16:02:46,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:46,279 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:46,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:02:46,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:02:46,483 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:46,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:46,484 INFO L85 PathProgramCache]: Analyzing trace with hash -966877356, now seen corresponding path program 1 times [2024-11-13 16:02:46,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:46,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609394468] [2024-11-13 16:02:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:46,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:46,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609394468] [2024-11-13 16:02:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609394468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053547106] [2024-11-13 16:02:46,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:46,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:46,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:46,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:46,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:02:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:46,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:02:46,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:46,913 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:46,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:47,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053547106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:02:47,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:02:47,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-11-13 16:02:47,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447318090] [2024-11-13 16:02:47,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:47,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 16:02:47,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 16:02:47,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-13 16:02:47,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:47,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 52 transitions, 427 flow. Second operand has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2024-11-13 16:02:47,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:47,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:47,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:48,218 INFO L124 PetriNetUnfolderBase]: 1422/3164 cut-off events. [2024-11-13 16:02:48,219 INFO L125 PetriNetUnfolderBase]: For 11451/11475 co-relation queries the response was YES. [2024-11-13 16:02:48,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10137 conditions, 3164 events. 1422/3164 cut-off events. For 11451/11475 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19052 event pairs, 71 based on Foata normal form. 114/3263 useless extension candidates. Maximal degree in co-relation 10098. Up to 391 conditions per place. [2024-11-13 16:02:48,250 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 92 selfloop transitions, 24 changer transitions 25/153 dead transitions. [2024-11-13 16:02:48,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 153 transitions, 1222 flow [2024-11-13 16:02:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:02:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 16:02:48,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 336 transitions. [2024-11-13 16:02:48,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-13 16:02:48,254 INFO L175 Difference]: Start difference. First operand has 87 places, 52 transitions, 427 flow. Second operand 15 states and 336 transitions. [2024-11-13 16:02:48,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 153 transitions, 1222 flow [2024-11-13 16:02:48,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 1209 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-13 16:02:48,278 INFO L231 Difference]: Finished difference. Result has 105 places, 60 transitions, 578 flow [2024-11-13 16:02:48,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=578, PETRI_PLACES=105, PETRI_TRANSITIONS=60} [2024-11-13 16:02:48,279 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2024-11-13 16:02:48,279 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 60 transitions, 578 flow [2024-11-13 16:02:48,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2024-11-13 16:02:48,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:48,280 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:48,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:02:48,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:48,480 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:48,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1598967692, now seen corresponding path program 2 times [2024-11-13 16:02:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187308093] [2024-11-13 16:02:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:48,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:48,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187308093] [2024-11-13 16:02:48,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187308093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:48,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435481296] [2024-11-13 16:02:49,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:02:49,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:49,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:49,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:49,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:02:49,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 16:02:49,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:02:49,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 16:02:49,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:49,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:49,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435481296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:02:49,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:02:49,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2024-11-13 16:02:49,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051429923] [2024-11-13 16:02:49,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:49,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 16:02:49,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:49,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 16:02:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-13 16:02:50,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:50,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 60 transitions, 578 flow. Second operand has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2024-11-13 16:02:50,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:50,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:50,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:02:52,207 INFO L124 PetriNetUnfolderBase]: 2412/5357 cut-off events. [2024-11-13 16:02:52,208 INFO L125 PetriNetUnfolderBase]: For 28181/28199 co-relation queries the response was YES. [2024-11-13 16:02:52,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17423 conditions, 5357 events. 2412/5357 cut-off events. For 28181/28199 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 31928 event pairs, 35 based on Foata normal form. 216/5570 useless extension candidates. Maximal degree in co-relation 17376. Up to 709 conditions per place. [2024-11-13 16:02:52,264 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 158 selfloop transitions, 41 changer transitions 49/260 dead transitions. [2024-11-13 16:02:52,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 260 transitions, 2117 flow [2024-11-13 16:02:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-13 16:02:52,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-13 16:02:52,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 627 transitions. [2024-11-13 16:02:52,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6997767857142857 [2024-11-13 16:02:52,272 INFO L175 Difference]: Start difference. First operand has 105 places, 60 transitions, 578 flow. Second operand 28 states and 627 transitions. [2024-11-13 16:02:52,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 260 transitions, 2117 flow [2024-11-13 16:02:52,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 260 transitions, 2037 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-13 16:02:52,330 INFO L231 Difference]: Finished difference. Result has 139 places, 76 transitions, 840 flow [2024-11-13 16:02:52,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=840, PETRI_PLACES=139, PETRI_TRANSITIONS=76} [2024-11-13 16:02:52,331 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2024-11-13 16:02:52,331 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 76 transitions, 840 flow [2024-11-13 16:02:52,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2024-11-13 16:02:52,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:02:52,333 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:02:52,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:02:52,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 16:02:52,537 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:02:52,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:02:52,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1625804868, now seen corresponding path program 2 times [2024-11-13 16:02:52,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:02:52,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380278290] [2024-11-13 16:02:52,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:02:52,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:02:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:02:53,596 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:53,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:02:53,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380278290] [2024-11-13 16:02:53,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380278290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:02:53,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108272018] [2024-11-13 16:02:53,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:02:53,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:02:53,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:02:53,601 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:02:53,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:02:53,739 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 16:02:53,740 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:02:53,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 16:02:53,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:02:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:54,062 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:02:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:02:55,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108272018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:02:55,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:02:55,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2024-11-13 16:02:55,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512484148] [2024-11-13 16:02:55,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:02:55,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-13 16:02:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:02:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-13 16:02:55,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1656, Unknown=0, NotChecked=0, Total=2256 [2024-11-13 16:02:55,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2024-11-13 16:02:55,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 76 transitions, 840 flow. Second operand has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2024-11-13 16:02:55,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:02:55,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2024-11-13 16:02:55,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:03:00,179 INFO L124 PetriNetUnfolderBase]: 4302/9500 cut-off events. [2024-11-13 16:03:00,179 INFO L125 PetriNetUnfolderBase]: For 80805/80829 co-relation queries the response was YES. [2024-11-13 16:03:00,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30896 conditions, 9500 events. 4302/9500 cut-off events. For 80805/80829 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 56827 event pairs, 71 based on Foata normal form. 402/9887 useless extension candidates. Maximal degree in co-relation 30836. Up to 1255 conditions per place. [2024-11-13 16:03:00,324 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 252 selfloop transitions, 72 changer transitions 89/425 dead transitions. [2024-11-13 16:03:00,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 425 transitions, 3531 flow [2024-11-13 16:03:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-13 16:03:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2024-11-13 16:03:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 1056 transitions. [2024-11-13 16:03:00,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2024-11-13 16:03:00,330 INFO L175 Difference]: Start difference. First operand has 139 places, 76 transitions, 840 flow. Second operand 47 states and 1056 transitions. [2024-11-13 16:03:00,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 425 transitions, 3531 flow [2024-11-13 16:03:00,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 425 transitions, 3385 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-13 16:03:00,487 INFO L231 Difference]: Finished difference. Result has 197 places, 108 transitions, 1346 flow [2024-11-13 16:03:00,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1346, PETRI_PLACES=197, PETRI_TRANSITIONS=108} [2024-11-13 16:03:00,488 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 162 predicate places. [2024-11-13 16:03:00,488 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 108 transitions, 1346 flow [2024-11-13 16:03:00,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2024-11-13 16:03:00,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:03:00,489 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 22, 22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:03:00,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-13 16:03:00,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:03:00,690 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2024-11-13 16:03:00,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:03:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1042945556, now seen corresponding path program 3 times [2024-11-13 16:03:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:03:00,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633717390] [2024-11-13 16:03:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:03:00,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:03:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:03:03,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 0 proven. 2291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:03:03,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:03:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633717390] [2024-11-13 16:03:03,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633717390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:03:03,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381324713] [2024-11-13 16:03:03,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 16:03:03,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:03:03,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:03:03,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:03:03,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:03:03,824 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2024-11-13 16:03:03,824 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:03:03,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 16:03:03,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:03:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 2288 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 16:03:06,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:03:06,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381324713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:03:06,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:03:06,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [45] total 90 [2024-11-13 16:03:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145422394] [2024-11-13 16:03:06,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:03:06,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-13 16:03:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:03:06,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-13 16:03:06,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1102, Invalid=6908, Unknown=0, NotChecked=0, Total=8010 [2024-11-13 16:03:06,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-13 16:03:06,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 108 transitions, 1346 flow. Second operand has 45 states, 45 states have (on average 13.044444444444444) internal successors, (587), 45 states have internal predecessors, (587), 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) [2024-11-13 16:03:06,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:03:06,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-13 16:03:06,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:03:33,839 INFO L124 PetriNetUnfolderBase]: 57698/100737 cut-off events. [2024-11-13 16:03:33,840 INFO L125 PetriNetUnfolderBase]: For 263341/263341 co-relation queries the response was YES. [2024-11-13 16:03:34,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334089 conditions, 100737 events. 57698/100737 cut-off events. For 263341/263341 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 840538 event pairs, 505 based on Foata normal form. 728/101455 useless extension candidates. Maximal degree in co-relation 334016. Up to 15435 conditions per place. [2024-11-13 16:03:35,073 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 1694/1694 dead transitions. [2024-11-13 16:03:35,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 1694 transitions, 21720 flow [2024-11-13 16:03:35,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-13 16:03:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-13 16:03:35,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 870 transitions. [2024-11-13 16:03:35,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6322674418604651 [2024-11-13 16:03:35,079 INFO L175 Difference]: Start difference. First operand has 197 places, 108 transitions, 1346 flow. Second operand 43 states and 870 transitions. [2024-11-13 16:03:35,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 1694 transitions, 21720 flow [2024-11-13 16:03:37,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 1694 transitions, 15210 flow, removed 42 selfloop flow, removed 73 redundant places. [2024-11-13 16:03:37,462 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2024-11-13 16:03:37,463 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2024-11-13 16:03:37,463 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 125 predicate places. [2024-11-13 16:03:37,463 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2024-11-13 16:03:37,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 13.044444444444444) internal successors, (587), 45 states have internal predecessors, (587), 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) [2024-11-13 16:03:37,468 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-13 16:03:37,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2024-11-13 16:03:37,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-13 16:03:37,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-13 16:03:37,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-13 16:03:37,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-13 16:03:37,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-13 16:03:37,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-13 16:03:37,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-13 16:03:37,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-13 16:03:37,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:03:37,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:03:37,672 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:03:37,678 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 16:03:37,679 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:03:37,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:03:37 BasicIcfg [2024-11-13 16:03:37,692 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:03:37,693 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:03:37,694 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:03:37,694 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:03:37,695 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:02:35" (3/4) ... [2024-11-13 16:03:37,698 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:03:37,701 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-11-13 16:03:37,702 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-11-13 16:03:37,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-13 16:03:37,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 16:03:37,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 16:03:37,706 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:03:37,819 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:03:37,820 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:03:37,820 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:03:37,822 INFO L158 Benchmark]: Toolchain (without parser) took 63968.19ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 117.7MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-13 16:03:37,822 INFO L158 Benchmark]: CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:03:37,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.86ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 98.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:03:37,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.73ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:03:37,825 INFO L158 Benchmark]: Boogie Preprocessor took 67.07ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:03:37,825 INFO L158 Benchmark]: RCFGBuilder took 602.89ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 74.8MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:03:37,827 INFO L158 Benchmark]: TraceAbstraction took 62482.88ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 74.1MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-11-13 16:03:37,827 INFO L158 Benchmark]: Witness Printer took 127.47ms. Allocated memory is still 10.5GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:03:37,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.86ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 98.4MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.73ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.07ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 95.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 602.89ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 74.8MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 62482.88ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 74.1MB in the beginning and 8.8GB in the end (delta: -8.7GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 127.47ms. Allocated memory is still 10.5GB. Free memory was 8.8GB in the beginning and 8.8GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 55 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 62.3s, OverallIterations: 20, TraceHistogramMax: 23, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 47.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3486 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3414 mSDsluCounter, 262 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5075 IncrementalHoareTripleChecker+Invalid, 5148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 23 mSDtfsCounter, 5075 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1026 GetRequests, 678 SyntacticMatches, 0 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5619 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1346occurred in iteration=19, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 1120 NumberOfCodeBlocks, 1120 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 3944 SizeOfPredicates, 70 NumberOfNonLiveVariables, 1550 ConjunctsInSsa, 109 ConjunctsInUnsatCore, 33 InterpolantComputations, 15 PerfectInterpolantSequences, 2309/6804 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 16:03:37,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78c9b794-15de-42c5-a577-2d2bc1070dc5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE