./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.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_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/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_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/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_207dbf28-94b4-44cb-88b3-f8a5d9023866/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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:04:04,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:04:04,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:04:04,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:04:04,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:04:04,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:04:04,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:04:04,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:04:04,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:04:04,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:04:04,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:04:04,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:04:04,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:04:04,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:04:04,169 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:04:04,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:04:04,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:04:04,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:04:04,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:04:04,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:04:04,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:04:04,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:04:04,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:04:04,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:04,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:04:04,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:04:04,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:04:04,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:04:04,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:04:04,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:04:04,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:04:04,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:04:04,174 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_207dbf28-94b4-44cb-88b3-f8a5d9023866/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 -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-11-13 16:04:04,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:04:04,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:04:04,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:04:04,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:04:04,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:04:04,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i Unable to find full path for "g++" [2024-11-13 16:04:06,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:04:06,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:04:06,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-11-13 16:04:06,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/data/701e202e3/be96ab4ef73144ecac4970de80c4ebe3/FLAG6466fb2a3 [2024-11-13 16:04:06,782 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/data/701e202e3/be96ab4ef73144ecac4970de80c4ebe3 [2024-11-13 16:04:06,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:04:06,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:04:06,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:06,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:04:06,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:04:06,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:06" (1/1) ... [2024-11-13 16:04:06,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0bd5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:06, skipping insertion in model container [2024-11-13 16:04:06,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:06" (1/1) ... [2024-11-13 16:04:06,853 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:04:07,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:07,293 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:04:07,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:07,481 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:04:07,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07 WrapperNode [2024-11-13 16:04:07,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:07,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:07,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:04:07,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:04:07,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,564 INFO L138 Inliner]: procedures = 274, calls = 44, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 110 [2024-11-13 16:04:07,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:07,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:04:07,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:04:07,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:04:07,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,580 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,595 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 8, 8]. 44 percent of accesses are in the largest equivalence class. The 18 initializations are split as follows [2, 8, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-13 16:04:07,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:04:07,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:04:07,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:04:07,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:04:07,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (1/1) ... [2024-11-13 16:04:07,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:07,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:04:07,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:04:07,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_207dbf28-94b4-44cb-88b3-f8a5d9023866/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:04:07,702 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-11-13 16:04:07,702 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-11-13 16:04:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 16:04:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 16:04:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 16:04:07,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:04:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:04:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:04:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-11-13 16:04:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-11-13 16:04:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-11-13 16:04:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-11-13 16:04:07,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:04:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:04:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:04:07,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:04:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:04:07,706 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 16:04:08,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:04:08,072 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:04:08,458 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:04:08,458 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:04:08,690 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:04:08,691 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 16:04:08,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:04:08 BoogieIcfgContainer [2024-11-13 16:04:08,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:04:08,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:04:08,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:04:08,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:04:08,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:04:06" (1/3) ... [2024-11-13 16:04:08,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14726d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:04:08, skipping insertion in model container [2024-11-13 16:04:08,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:07" (2/3) ... [2024-11-13 16:04:08,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14726d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:04:08, skipping insertion in model container [2024-11-13 16:04:08,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:04:08" (3/3) ... [2024-11-13 16:04:08,703 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-11-13 16:04:08,721 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:04:08,723 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 68 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-11-13 16:04:08,723 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:04:08,814 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 16:04:08,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 158 flow [2024-11-13 16:04:08,920 INFO L124 PetriNetUnfolderBase]: 6/70 cut-off events. [2024-11-13 16:04:08,924 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:04:08,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 6/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 175 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2024-11-13 16:04:08,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 158 flow [2024-11-13 16:04:08,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 70 transitions, 149 flow [2024-11-13 16:04:08,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:04:08,972 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;@3656cc3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:04:08,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-13 16:04:08,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:04:08,991 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-13 16:04:08,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:04:08,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:08,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:08,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:04:08,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1396029991, now seen corresponding path program 1 times [2024-11-13 16:04:09,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:09,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819391184] [2024-11-13 16:04:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:09,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:09,661 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 16:04:09,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819391184] [2024-11-13 16:04:09,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819391184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:09,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:09,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:04:09,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270155702] [2024-11-13 16:04:09,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:09,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:09,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:09,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:04:09,721 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-11-13 16:04:09,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 16:04:09,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:09,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-11-13 16:04:09,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:15,606 INFO L124 PetriNetUnfolderBase]: 27700/42528 cut-off events. [2024-11-13 16:04:15,607 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-13 16:04:15,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79469 conditions, 42528 events. 27700/42528 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 1228. Compared 328329 event pairs, 15149 based on Foata normal form. 3641/44000 useless extension candidates. Maximal degree in co-relation 79458. Up to 23511 conditions per place. [2024-11-13 16:04:15,949 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 103 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2024-11-13 16:04:15,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 499 flow [2024-11-13 16:04:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:04:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:04:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2024-11-13 16:04:15,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8047945205479452 [2024-11-13 16:04:15,972 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 149 flow. Second operand 4 states and 235 transitions. [2024-11-13 16:04:15,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 499 flow [2024-11-13 16:04:15,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 492 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 16:04:15,992 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 166 flow [2024-11-13 16:04:15,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2024-11-13 16:04:16,002 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2024-11-13 16:04:16,003 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 166 flow [2024-11-13 16:04:16,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 16:04:16,005 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:16,005 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:16,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:04:16,006 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:04:16,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:16,007 INFO L85 PathProgramCache]: Analyzing trace with hash -15813719, now seen corresponding path program 1 times [2024-11-13 16:04:16,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:16,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960790354] [2024-11-13 16:04:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:16,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:16,247 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 16:04:16,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:16,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960790354] [2024-11-13 16:04:16,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960790354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:16,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:16,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:04:16,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207160607] [2024-11-13 16:04:16,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:16,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:04:16,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2024-11-13 16:04:16,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 16:04:16,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:16,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2024-11-13 16:04:16,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:23,889 INFO L124 PetriNetUnfolderBase]: 56029/91483 cut-off events. [2024-11-13 16:04:23,889 INFO L125 PetriNetUnfolderBase]: For 13828/15638 co-relation queries the response was YES. [2024-11-13 16:04:24,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180496 conditions, 91483 events. 56029/91483 cut-off events. For 13828/15638 co-relation queries the response was YES. Maximal size of possible extension queue 1922. Compared 791974 event pairs, 19257 based on Foata normal form. 672/86218 useless extension candidates. Maximal degree in co-relation 180485. Up to 33518 conditions per place. [2024-11-13 16:04:24,787 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 128 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2024-11-13 16:04:24,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 163 transitions, 680 flow [2024-11-13 16:04:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:04:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 16:04:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2024-11-13 16:04:24,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7561643835616438 [2024-11-13 16:04:24,791 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 166 flow. Second operand 5 states and 276 transitions. [2024-11-13 16:04:24,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 163 transitions, 680 flow [2024-11-13 16:04:25,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 163 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:04:25,122 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 232 flow [2024-11-13 16:04:25,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-11-13 16:04:25,124 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2024-11-13 16:04:25,124 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 232 flow [2024-11-13 16:04:25,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 16:04:25,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:25,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:25,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:04:25,125 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:04:25,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:25,125 INFO L85 PathProgramCache]: Analyzing trace with hash -490224771, now seen corresponding path program 1 times [2024-11-13 16:04:25,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:25,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880353523] [2024-11-13 16:04:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:25,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:25,344 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 16:04:25,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:25,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880353523] [2024-11-13 16:04:25,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880353523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:25,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:25,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:04:25,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848598352] [2024-11-13 16:04:25,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:25,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:04:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:25,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:04:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:04:25,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2024-11-13 16:04:25,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 16:04:25,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:25,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2024-11-13 16:04:25,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:34,691 INFO L124 PetriNetUnfolderBase]: 74705/120356 cut-off events. [2024-11-13 16:04:34,692 INFO L125 PetriNetUnfolderBase]: For 46934/49658 co-relation queries the response was YES. [2024-11-13 16:04:34,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260716 conditions, 120356 events. 74705/120356 cut-off events. For 46934/49658 co-relation queries the response was YES. Maximal size of possible extension queue 2556. Compared 1064263 event pairs, 19623 based on Foata normal form. 1848/116950 useless extension candidates. Maximal degree in co-relation 260700. Up to 46241 conditions per place. [2024-11-13 16:04:35,342 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 130 selfloop transitions, 15 changer transitions 0/171 dead transitions. [2024-11-13 16:04:35,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 792 flow [2024-11-13 16:04:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:04:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 16:04:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2024-11-13 16:04:35,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7534246575342466 [2024-11-13 16:04:35,345 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 232 flow. Second operand 5 states and 275 transitions. [2024-11-13 16:04:35,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 792 flow [2024-11-13 16:04:35,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 792 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:04:35,694 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 358 flow [2024-11-13 16:04:35,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2024-11-13 16:04:35,695 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 15 predicate places. [2024-11-13 16:04:35,696 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 358 flow [2024-11-13 16:04:35,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 16:04:35,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:35,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:35,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:04:35,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:04:35,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:35,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1396831060, now seen corresponding path program 1 times [2024-11-13 16:04:35,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:35,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716203572] [2024-11-13 16:04:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:35,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:35,897 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 16:04:35,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:35,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716203572] [2024-11-13 16:04:35,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716203572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:35,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:35,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:04:35,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720166172] [2024-11-13 16:04:35,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:35,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:04:35,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:04:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:04:35,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2024-11-13 16:04:35,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 16:04:35,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:35,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2024-11-13 16:04:35,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:04:47,272 INFO L124 PetriNetUnfolderBase]: 85671/132496 cut-off events. [2024-11-13 16:04:47,272 INFO L125 PetriNetUnfolderBase]: For 114341/117859 co-relation queries the response was YES. [2024-11-13 16:04:47,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314798 conditions, 132496 events. 85671/132496 cut-off events. For 114341/117859 co-relation queries the response was YES. Maximal size of possible extension queue 2616. Compared 1111774 event pairs, 16793 based on Foata normal form. 1178/128675 useless extension candidates. Maximal degree in co-relation 314776. Up to 46913 conditions per place. [2024-11-13 16:04:48,067 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 239 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2024-11-13 16:04:48,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 284 transitions, 1414 flow [2024-11-13 16:04:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:04:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:04:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 481 transitions. [2024-11-13 16:04:48,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7321156773211568 [2024-11-13 16:04:48,070 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 358 flow. Second operand 9 states and 481 transitions. [2024-11-13 16:04:48,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 284 transitions, 1414 flow [2024-11-13 16:04:48,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 284 transitions, 1406 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-13 16:04:48,767 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 474 flow [2024-11-13 16:04:48,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=474, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-11-13 16:04:48,769 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 28 predicate places. [2024-11-13 16:04:48,769 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 474 flow [2024-11-13 16:04:48,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 16:04:48,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:04:48,770 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:04:48,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:04:48,771 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-13 16:04:48,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:04:48,771 INFO L85 PathProgramCache]: Analyzing trace with hash -352089376, now seen corresponding path program 1 times [2024-11-13 16:04:48,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:04:48,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918035852] [2024-11-13 16:04:48,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:04:48,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:04:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:04:49,215 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 16:04:49,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:04:49,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918035852] [2024-11-13 16:04:49,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918035852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:04:49,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:04:49,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:04:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972507893] [2024-11-13 16:04:49,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:04:49,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:04:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:04:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:04:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:04:49,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2024-11-13 16:04:49,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 16:04:49,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:04:49,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2024-11-13 16:04:49,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand