./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.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_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/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_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/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_a385780e-1acd-4603-8f08-b4d974b02e6d/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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:10:44,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:10:44,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:10:44,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:10:44,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:10:44,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:10:44,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:10:44,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:10:44,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:10:44,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:10:44,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:10:44,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:10:44,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:10:44,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:10:44,668 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:10:44,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:10:44,669 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:10:44,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:10:44,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:44,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:10:44,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:10:44,671 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_a385780e-1acd-4603-8f08-b4d974b02e6d/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 -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-11-13 16:10:45,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:10:45,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:10:45,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:10:45,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:10:45,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:10:45,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i Unable to find full path for "g++" [2024-11-13 16:10:46,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:47,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:47,392 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-13 16:10:47,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/data/846afef60/17e93d5bbf6f47a0ba76ba30cc9b3704/FLAG76cd1b246 [2024-11-13 16:10:47,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/data/846afef60/17e93d5bbf6f47a0ba76ba30cc9b3704 [2024-11-13 16:10:47,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:47,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:47,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:47,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:47,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:47,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:47" (1/1) ... [2024-11-13 16:10:47,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc63235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:47, skipping insertion in model container [2024-11-13 16:10:47,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:47" (1/1) ... [2024-11-13 16:10:47,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:48,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:48,029 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:48,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:48,145 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:48,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48 WrapperNode [2024-11-13 16:10:48,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:48,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:48,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:48,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:48,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,192 INFO L138 Inliner]: procedures = 255, calls = 62, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 187 [2024-11-13 16:10:48,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:48,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:48,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:48,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:48,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,206 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,224 INFO L175 MemorySlicer]: Split 28 memory accesses to 5 slices as follows [2, 8, 8, 8, 2]. 29 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 8, 8, 8, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-11-13 16:10:48,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,241 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:48,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:48,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:48,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:48,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (1/1) ... [2024-11-13 16:10:48,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:48,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:48,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:10:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:10:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-13 16:10:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:48,318 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 16:10:48,503 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:48,505 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:48,888 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:10:48,889 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:49,182 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:49,182 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-13 16:10:49,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:49 BoogieIcfgContainer [2024-11-13 16:10:49,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:49,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:10:49,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:10:49,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:10:49,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:10:47" (1/3) ... [2024-11-13 16:10:49,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464e39e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:49, skipping insertion in model container [2024-11-13 16:10:49,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:48" (2/3) ... [2024-11-13 16:10:49,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464e39e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:49, skipping insertion in model container [2024-11-13 16:10:49,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:49" (3/3) ... [2024-11-13 16:10:49,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-11-13 16:10:49,216 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:10:49,218 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_27-funptr_racing.i that has 2 procedures, 82 locations, 1 initial locations, 9 loop locations, and 12 error locations. [2024-11-13 16:10:49,218 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:10:49,297 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 16:10:49,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 98 transitions, 203 flow [2024-11-13 16:10:49,426 INFO L124 PetriNetUnfolderBase]: 18/117 cut-off events. [2024-11-13 16:10:49,434 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:10:49,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 117 events. 18/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 394 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 89. Up to 4 conditions per place. [2024-11-13 16:10:49,452 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 98 transitions, 203 flow [2024-11-13 16:10:49,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 97 transitions, 201 flow [2024-11-13 16:10:49,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:49,517 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;@31a0bef0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:49,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-13 16:10:49,532 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:10:49,537 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-13 16:10:49,537 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:10:49,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:49,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:49,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:10:49,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:49,552 INFO L85 PathProgramCache]: Analyzing trace with hash 483530720, now seen corresponding path program 1 times [2024-11-13 16:10:49,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:49,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31173577] [2024-11-13 16:10:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:49,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:50,030 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 16:10:50,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:50,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31173577] [2024-11-13 16:10:50,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31173577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:50,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:50,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432264682] [2024-11-13 16:10:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:50,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:10:50,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:50,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:10:50,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:10:50,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 98 [2024-11-13 16:10:50,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 97 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 16:10:50,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:50,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 98 [2024-11-13 16:10:50,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:10:50,708 INFO L124 PetriNetUnfolderBase]: 420/1067 cut-off events. [2024-11-13 16:10:50,709 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:10:50,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 1067 events. 420/1067 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 6506 event pairs, 0 based on Foata normal form. 184/1172 useless extension candidates. Maximal degree in co-relation 1897. Up to 786 conditions per place. [2024-11-13 16:10:50,724 INFO L140 encePairwiseOnDemand]: 78/98 looper letters, 97 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2024-11-13 16:10:50,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 479 flow [2024-11-13 16:10:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:10:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:10:50,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-11-13 16:10:50,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7270408163265306 [2024-11-13 16:10:50,748 INFO L175 Difference]: Start difference. First operand has 85 places, 97 transitions, 201 flow. Second operand 4 states and 285 transitions. [2024-11-13 16:10:50,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 479 flow [2024-11-13 16:10:50,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:10:50,766 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 179 flow [2024-11-13 16:10:50,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2024-11-13 16:10:50,774 INFO L277 CegarLoopForPetriNet]: 85 programPoint places, 2 predicate places. [2024-11-13 16:10:50,775 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 179 flow [2024-11-13 16:10:50,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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 16:10:50,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:50,775 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:50,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:10:50,776 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:10:50,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:50,776 INFO L85 PathProgramCache]: Analyzing trace with hash -456143502, now seen corresponding path program 1 times [2024-11-13 16:10:50,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642023955] [2024-11-13 16:10:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:50,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:50,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:50,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:10:50,873 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:10:50,875 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-13 16:10:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-13 16:10:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-13 16:10:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-13 16:10:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-13 16:10:50,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-13 16:10:50,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-13 16:10:50,882 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-13 16:10:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-13 16:10:50,883 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-13 16:10:50,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:10:50,884 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 16:10:50,889 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:10:50,889 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 16:10:50,948 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 16:10:50,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 165 transitions, 346 flow [2024-11-13 16:10:51,017 INFO L124 PetriNetUnfolderBase]: 35/222 cut-off events. [2024-11-13 16:10:51,018 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 16:10:51,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 222 events. 35/222 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 982 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 163. Up to 6 conditions per place. [2024-11-13 16:10:51,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 165 transitions, 346 flow [2024-11-13 16:10:51,029 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 165 transitions, 346 flow [2024-11-13 16:10:51,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:51,032 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;@31a0bef0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:51,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-13 16:10:51,037 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:10:51,037 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-13 16:10:51,037 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:10:51,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:51,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:51,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 16:10:51,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:51,041 INFO L85 PathProgramCache]: Analyzing trace with hash 641053510, now seen corresponding path program 1 times [2024-11-13 16:10:51,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:51,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585568367] [2024-11-13 16:10:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:51,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:51,202 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 16:10:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:51,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585568367] [2024-11-13 16:10:51,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585568367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:51,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:51,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:51,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272804161] [2024-11-13 16:10:51,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:51,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:10:51,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:51,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:10:51,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:10:51,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 16:10:51,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 165 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 16:10:51,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:51,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 16:10:51,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:10:57,748 INFO L124 PetriNetUnfolderBase]: 27146/53674 cut-off events. [2024-11-13 16:10:57,749 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-11-13 16:10:57,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95204 conditions, 53674 events. 27146/53674 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 537501 event pairs, 14035 based on Foata normal form. 8804/57056 useless extension candidates. Maximal degree in co-relation 9343. Up to 41299 conditions per place. [2024-11-13 16:10:58,034 INFO L140 encePairwiseOnDemand]: 133/165 looper letters, 131 selfloop transitions, 3 changer transitions 0/196 dead transitions. [2024-11-13 16:10:58,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 196 transitions, 676 flow [2024-11-13 16:10:58,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:10:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:10:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2024-11-13 16:10:58,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-13 16:10:58,038 INFO L175 Difference]: Start difference. First operand has 140 places, 165 transitions, 346 flow. Second operand 4 states and 435 transitions. [2024-11-13 16:10:58,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 196 transitions, 676 flow [2024-11-13 16:10:58,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 196 transitions, 676 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:10:58,048 INFO L231 Difference]: Finished difference. Result has 145 places, 141 transitions, 318 flow [2024-11-13 16:10:58,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=145, PETRI_TRANSITIONS=141} [2024-11-13 16:10:58,049 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-11-13 16:10:58,050 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 141 transitions, 318 flow [2024-11-13 16:10:58,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 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 16:10:58,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:58,050 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:58,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:10:58,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 16:10:58,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:58,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2094422159, now seen corresponding path program 1 times [2024-11-13 16:10:58,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:10:58,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636117337] [2024-11-13 16:10:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:10:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:58,245 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 16:10:58,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:10:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636117337] [2024-11-13 16:10:58,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636117337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:10:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132361363] [2024-11-13 16:10:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:58,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:58,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:58,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:10:58,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:10:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:58,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:10:58,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:58,488 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 16:10:58,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:58,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132361363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:58,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:10:58,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 16:10:58,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888716398] [2024-11-13 16:10:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:58,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:10:58,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:10:58,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:10:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:10:58,502 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 16:10:58,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 141 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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 16:10:58,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:58,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 16:10:58,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:03,159 INFO L124 PetriNetUnfolderBase]: 26209/47243 cut-off events. [2024-11-13 16:11:03,159 INFO L125 PetriNetUnfolderBase]: For 2939/2939 co-relation queries the response was YES. [2024-11-13 16:11:03,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90547 conditions, 47243 events. 26209/47243 cut-off events. For 2939/2939 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 436989 event pairs, 1712 based on Foata normal form. 756/44560 useless extension candidates. Maximal degree in co-relation 4170. Up to 29182 conditions per place. [2024-11-13 16:11:03,336 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 235 selfloop transitions, 6 changer transitions 0/303 dead transitions. [2024-11-13 16:11:03,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 303 transitions, 1122 flow [2024-11-13 16:11:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:11:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:11:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 614 transitions. [2024-11-13 16:11:03,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6202020202020202 [2024-11-13 16:11:03,340 INFO L175 Difference]: Start difference. First operand has 145 places, 141 transitions, 318 flow. Second operand 6 states and 614 transitions. [2024-11-13 16:11:03,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 303 transitions, 1122 flow [2024-11-13 16:11:03,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 303 transitions, 1120 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:11:03,347 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 324 flow [2024-11-13 16:11:03,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2024-11-13 16:11:03,348 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2024-11-13 16:11:03,348 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 324 flow [2024-11-13 16:11:03,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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 16:11:03,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:03,349 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-13 16:11:03,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:11:03,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a385780e-1acd-4603-8f08-b4d974b02e6d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:11:03,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 16:11:03,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:03,551 INFO L85 PathProgramCache]: Analyzing trace with hash -502576834, now seen corresponding path program 1 times [2024-11-13 16:11:03,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:03,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483798309] [2024-11-13 16:11:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:03,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:03,651 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 16:11:03,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:03,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483798309] [2024-11-13 16:11:03,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483798309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:03,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:11:03,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203000095] [2024-11-13 16:11:03,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:03,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:11:03,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:03,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:11:03,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:11:03,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-11-13 16:11:03,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 16:11:03,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:03,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-11-13 16:11:03,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:11:07,265 INFO L124 PetriNetUnfolderBase]: 24725/43920 cut-off events. [2024-11-13 16:11:07,265 INFO L125 PetriNetUnfolderBase]: For 5726/5726 co-relation queries the response was YES. [2024-11-13 16:11:07,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86560 conditions, 43920 events. 24725/43920 cut-off events. For 5726/5726 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 393908 event pairs, 1944 based on Foata normal form. 757/42284 useless extension candidates. Maximal degree in co-relation 25793. Up to 31590 conditions per place. [2024-11-13 16:11:07,446 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 180 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-11-13 16:11:07,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 248 transitions, 910 flow [2024-11-13 16:11:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:11:07,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:11:07,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2024-11-13 16:11:07,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.656060606060606 [2024-11-13 16:11:07,448 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 324 flow. Second operand 4 states and 433 transitions. [2024-11-13 16:11:07,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 248 transitions, 910 flow [2024-11-13 16:11:07,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 248 transitions, 894 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-13 16:11:07,478 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 324 flow [2024-11-13 16:11:07,478 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-11-13 16:11:07,479 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 6 predicate places. [2024-11-13 16:11:07,479 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 324 flow [2024-11-13 16:11:07,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 16:11:07,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:07,480 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 16:11:07,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:11:07,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-13 16:11:07,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1939978105, now seen corresponding path program 1 times [2024-11-13 16:11:07,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:07,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971523047] [2024-11-13 16:11:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:07,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:11:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:11:07,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:11:07,552 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:11:07,552 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-13 16:11:07,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-13 16:11:07,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-13 16:11:07,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-13 16:11:07,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-13 16:11:07,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-13 16:11:07,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-13 16:11:07,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:11:07,554 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 16:11:07,555 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:11:07,555 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 16:11:07,611 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 16:11:07,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 232 transitions, 491 flow [2024-11-13 16:11:07,673 INFO L124 PetriNetUnfolderBase]: 55/346 cut-off events. [2024-11-13 16:11:07,674 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 16:11:07,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 346 events. 55/346 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1688 event pairs, 1 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 248. Up to 12 conditions per place. [2024-11-13 16:11:07,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 232 transitions, 491 flow [2024-11-13 16:11:07,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 232 transitions, 491 flow [2024-11-13 16:11:07,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:11:07,684 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;@31a0bef0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:11:07,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-13 16:11:07,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:11:07,689 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-13 16:11:07,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:11:07,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:11:07,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:11:07,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2024-11-13 16:11:07,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:11:07,689 INFO L85 PathProgramCache]: Analyzing trace with hash 862514735, now seen corresponding path program 1 times [2024-11-13 16:11:07,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:11:07,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114176332] [2024-11-13 16:11:07,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:11:07,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:11:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:11:07,774 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 16:11:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:11:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114176332] [2024-11-13 16:11:07,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114176332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:11:07,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:11:07,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:11:07,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176623616] [2024-11-13 16:11:07,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:11:07,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:11:07,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:11:07,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:11:07,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:11:07,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 232 [2024-11-13 16:11:07,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 232 transitions, 491 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 16:11:07,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:11:07,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 232 [2024-11-13 16:11:07,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand