./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/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_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:10:12,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:10:12,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 13:10:12,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:10:12,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:10:12,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:10:12,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:10:12,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:10:12,774 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:10:12,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:10:12,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:10:12,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:10:12,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:10:12,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:10:12,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:10:12,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:10:12,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:10:12,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:10:12,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:10:12,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:10:12,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:10:12,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:10:12,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:10:12,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:10:12,778 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_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-12-02 13:10:13,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:10:13,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:10:13,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:10:13,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:10:13,033 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:10:13,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-12-02 13:10:15,688 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/data/09b622e7e/426cfbf5e6cb496a90cc7d0fea785fcc/FLAG7f5d566bf [2024-12-02 13:10:15,978 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:10:15,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-12-02 13:10:15,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/data/09b622e7e/426cfbf5e6cb496a90cc7d0fea785fcc/FLAG7f5d566bf [2024-12-02 13:10:16,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/data/09b622e7e/426cfbf5e6cb496a90cc7d0fea785fcc [2024-12-02 13:10:16,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:10:16,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:10:16,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:10:16,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:10:16,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:10:16,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706d1310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16, skipping insertion in model container [2024-12-02 13:10:16,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:10:16,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:10:16,357 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:10:16,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:10:16,448 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:10:16,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16 WrapperNode [2024-12-02 13:10:16,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:10:16,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:10:16,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:10:16,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:10:16,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,488 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 104 [2024-12-02 13:10:16,489 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:10:16,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:10:16,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:10:16,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:10:16,496 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,515 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-12-02 13:10:16,515 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,525 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:10:16,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:10:16,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:10:16,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:10:16,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (1/1) ... [2024-12-02 13:10:16,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:10:16,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:10:16,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:10:16,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-12-02 13:10:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-12-02 13:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 13:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 13:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-12-02 13:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-12-02 13:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-12-02 13:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-12-02 13:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:10:16,593 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 13:10:16,807 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:10:16,809 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:10:17,037 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:10:17,037 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:10:17,154 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:10:17,154 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-02 13:10:17,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:10:17 BoogieIcfgContainer [2024-12-02 13:10:17,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:10:17,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:10:17,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:10:17,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:10:17,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:10:16" (1/3) ... [2024-12-02 13:10:17,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b01aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:10:17, skipping insertion in model container [2024-12-02 13:10:17,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:10:16" (2/3) ... [2024-12-02 13:10:17,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b01aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:10:17, skipping insertion in model container [2024-12-02 13:10:17,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:10:17" (3/3) ... [2024-12-02 13:10:17,163 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-12-02 13:10:17,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:10:17,175 INFO L151 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. [2024-12-02 13:10:17,175 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:10:17,229 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 13:10:17,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 162 flow [2024-12-02 13:10:17,300 INFO L124 PetriNetUnfolderBase]: 8/72 cut-off events. [2024-12-02 13:10:17,302 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:10:17,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 8/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 186 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2024-12-02 13:10:17,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 75 transitions, 162 flow [2024-12-02 13:10:17,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 72 transitions, 153 flow [2024-12-02 13:10:17,317 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:10:17,326 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;@73448fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:10:17,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-12-02 13:10:17,336 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:10:17,337 INFO L124 PetriNetUnfolderBase]: 3/33 cut-off events. [2024-12-02 13:10:17,337 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:10:17,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:17,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:17,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:10:17,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash -544834963, now seen corresponding path program 1 times [2024-12-02 13:10:17,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:17,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668815459] [2024-12-02 13:10:17,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:17,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668815459] [2024-12-02 13:10:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668815459] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:10:17,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776564042] [2024-12-02 13:10:17,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:17,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:10:17,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:17,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:10:17,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:10:17,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2024-12-02 13:10:17,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 72 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:17,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:17,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2024-12-02 13:10:17,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:10:21,773 INFO L124 PetriNetUnfolderBase]: 33529/53794 cut-off events. [2024-12-02 13:10:21,773 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-12-02 13:10:21,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98698 conditions, 53794 events. 33529/53794 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 422295 event pairs, 11329 based on Foata normal form. 392/50312 useless extension candidates. Maximal degree in co-relation 98687. Up to 20395 conditions per place. [2024-12-02 13:10:22,015 INFO L140 encePairwiseOnDemand]: 63/75 looper letters, 120 selfloop transitions, 9 changer transitions 0/153 dead transitions. [2024-12-02 13:10:22,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 153 transitions, 582 flow [2024-12-02 13:10:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:10:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 13:10:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions. [2024-12-02 13:10:22,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7413333333333333 [2024-12-02 13:10:22,029 INFO L175 Difference]: Start difference. First operand has 74 places, 72 transitions, 153 flow. Second operand 5 states and 278 transitions. [2024-12-02 13:10:22,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 153 transitions, 582 flow [2024-12-02 13:10:22,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 153 transitions, 576 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 13:10:22,041 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 206 flow [2024-12-02 13:10:22,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2024-12-02 13:10:22,045 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2024-12-02 13:10:22,045 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 206 flow [2024-12-02 13:10:22,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:22,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:22,046 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:22,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:10:22,046 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:10:22,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash -27870503, now seen corresponding path program 1 times [2024-12-02 13:10:22,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:22,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011321479] [2024-12-02 13:10:22,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:22,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:22,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:22,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011321479] [2024-12-02 13:10:22,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011321479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:22,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:22,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:10:22,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853704749] [2024-12-02 13:10:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:22,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:10:22,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:22,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:10:22,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:10:22,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 75 [2024-12-02 13:10:22,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:22,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:22,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 75 [2024-12-02 13:10:22,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:10:27,263 INFO L124 PetriNetUnfolderBase]: 55304/89610 cut-off events. [2024-12-02 13:10:27,263 INFO L125 PetriNetUnfolderBase]: For 18119/19336 co-relation queries the response was YES. [2024-12-02 13:10:27,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180315 conditions, 89610 events. 55304/89610 cut-off events. For 18119/19336 co-relation queries the response was YES. Maximal size of possible extension queue 1971. Compared 774577 event pairs, 28822 based on Foata normal form. 2748/88173 useless extension candidates. Maximal degree in co-relation 180301. Up to 48487 conditions per place. [2024-12-02 13:10:27,758 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 119 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2024-12-02 13:10:27,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 149 transitions, 664 flow [2024-12-02 13:10:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:10:27,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:10:27,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2024-12-02 13:10:27,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7366666666666667 [2024-12-02 13:10:27,760 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 206 flow. Second operand 4 states and 221 transitions. [2024-12-02 13:10:27,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 149 transitions, 664 flow [2024-12-02 13:10:27,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 149 transitions, 664 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 13:10:27,935 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 230 flow [2024-12-02 13:10:27,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2024-12-02 13:10:27,936 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 6 predicate places. [2024-12-02 13:10:27,936 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 230 flow [2024-12-02 13:10:27,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:27,936 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:27,936 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:27,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:10:27,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:10:27,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash 289985838, now seen corresponding path program 1 times [2024-12-02 13:10:27,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:27,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714734522] [2024-12-02 13:10:27,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:27,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:28,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:28,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:28,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714734522] [2024-12-02 13:10:28,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714734522] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:28,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:28,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:10:28,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602542478] [2024-12-02 13:10:28,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:28,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:10:28,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:28,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:10:28,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:10:28,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2024-12-02 13:10:28,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:28,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:28,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2024-12-02 13:10:28,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:10:35,278 INFO L124 PetriNetUnfolderBase]: 74925/119343 cut-off events. [2024-12-02 13:10:35,278 INFO L125 PetriNetUnfolderBase]: For 50425/53149 co-relation queries the response was YES. [2024-12-02 13:10:35,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261946 conditions, 119343 events. 74925/119343 cut-off events. For 50425/53149 co-relation queries the response was YES. Maximal size of possible extension queue 2583. Compared 1033626 event pairs, 19623 based on Foata normal form. 1848/115876 useless extension candidates. Maximal degree in co-relation 261929. Up to 46241 conditions per place. [2024-12-02 13:10:36,079 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 130 selfloop transitions, 15 changer transitions 0/169 dead transitions. [2024-12-02 13:10:36,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 169 transitions, 796 flow [2024-12-02 13:10:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:10:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 13:10:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 265 transitions. [2024-12-02 13:10:36,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-12-02 13:10:36,082 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 230 flow. Second operand 5 states and 265 transitions. [2024-12-02 13:10:36,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 169 transitions, 796 flow [2024-12-02 13:10:36,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 169 transitions, 788 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:10:36,368 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 354 flow [2024-12-02 13:10:36,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2024-12-02 13:10:36,369 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 13 predicate places. [2024-12-02 13:10:36,369 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 354 flow [2024-12-02 13:10:36,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:36,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:36,369 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:36,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:10:36,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:10:36,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:36,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1789372080, now seen corresponding path program 1 times [2024-12-02 13:10:36,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:36,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106005454] [2024-12-02 13:10:36,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:36,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:36,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:36,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106005454] [2024-12-02 13:10:36,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106005454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:36,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:36,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:10:36,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812724065] [2024-12-02 13:10:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:36,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:10:36,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:36,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:10:36,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:10:36,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 75 [2024-12-02 13:10:36,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:36,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:36,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 75 [2024-12-02 13:10:36,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:10:45,097 INFO L124 PetriNetUnfolderBase]: 85931/131661 cut-off events. [2024-12-02 13:10:45,097 INFO L125 PetriNetUnfolderBase]: For 115373/118839 co-relation queries the response was YES. [2024-12-02 13:10:45,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313963 conditions, 131661 events. 85931/131661 cut-off events. For 115373/118839 co-relation queries the response was YES. Maximal size of possible extension queue 2667. Compared 1083295 event pairs, 16793 based on Foata normal form. 1178/127602 useless extension candidates. Maximal degree in co-relation 313941. Up to 46913 conditions per place. [2024-12-02 13:10:45,694 INFO L140 encePairwiseOnDemand]: 65/75 looper letters, 239 selfloop transitions, 21 changer transitions 0/282 dead transitions. [2024-12-02 13:10:45,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 282 transitions, 1410 flow [2024-12-02 13:10:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:10:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 13:10:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 463 transitions. [2024-12-02 13:10:45,696 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6859259259259259 [2024-12-02 13:10:45,696 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 354 flow. Second operand 9 states and 463 transitions. [2024-12-02 13:10:45,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 282 transitions, 1410 flow [2024-12-02 13:10:46,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 282 transitions, 1402 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-12-02 13:10:46,467 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 470 flow [2024-12-02 13:10:46,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2024-12-02 13:10:46,468 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 26 predicate places. [2024-12-02 13:10:46,468 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 470 flow [2024-12-02 13:10:46,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:46,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:46,469 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:46,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:10:46,469 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:10:46,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash -364039855, now seen corresponding path program 1 times [2024-12-02 13:10:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883124648] [2024-12-02 13:10:46,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:46,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:46,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:46,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883124648] [2024-12-02 13:10:46,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883124648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:46,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:46,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:10:46,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985202691] [2024-12-02 13:10:46,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:46,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:10:46,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:46,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:10:46,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:10:46,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 75 [2024-12-02 13:10:46,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 92 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:46,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:46,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 75 [2024-12-02 13:10:46,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:10:57,594 INFO L124 PetriNetUnfolderBase]: 99333/152599 cut-off events. [2024-12-02 13:10:57,594 INFO L125 PetriNetUnfolderBase]: For 211243/215213 co-relation queries the response was YES. [2024-12-02 13:10:57,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390468 conditions, 152599 events. 99333/152599 cut-off events. For 211243/215213 co-relation queries the response was YES. Maximal size of possible extension queue 3062. Compared 1274452 event pairs, 20926 based on Foata normal form. 2354/151647 useless extension candidates. Maximal degree in co-relation 390439. Up to 41304 conditions per place. [2024-12-02 13:10:58,555 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 235 selfloop transitions, 31 changer transitions 0/288 dead transitions. [2024-12-02 13:10:58,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 288 transitions, 1586 flow [2024-12-02 13:10:58,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:10:58,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-02 13:10:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 464 transitions. [2024-12-02 13:10:58,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6874074074074074 [2024-12-02 13:10:58,557 INFO L175 Difference]: Start difference. First operand has 100 places, 92 transitions, 470 flow. Second operand 9 states and 464 transitions. [2024-12-02 13:10:58,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 288 transitions, 1586 flow [2024-12-02 13:11:03,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 288 transitions, 1522 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-12-02 13:11:03,096 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 610 flow [2024-12-02 13:11:03,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2024-12-02 13:11:03,097 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 33 predicate places. [2024-12-02 13:11:03,097 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 610 flow [2024-12-02 13:11:03,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:03,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:11:03,097 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:03,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:11:03,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:11:03,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:03,098 INFO L85 PathProgramCache]: Analyzing trace with hash 371045772, now seen corresponding path program 1 times [2024-12-02 13:11:03,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:03,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978539804] [2024-12-02 13:11:03,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:03,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:03,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:03,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978539804] [2024-12-02 13:11:03,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978539804] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:11:03,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624531815] [2024-12-02 13:11:03,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:03,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:11:03,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:11:03,283 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:11:03,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:11:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:03,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:11:03,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:11:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:03,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:11:03,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624531815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:03,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:11:03,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 13:11:03,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5771200] [2024-12-02 13:11:03,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:03,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:11:03,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:03,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:11:03,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:11:03,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 75 [2024-12-02 13:11:03,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 610 flow. Second operand has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:03,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:11:03,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 75 [2024-12-02 13:11:03,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:11:13,617 INFO L124 PetriNetUnfolderBase]: 87211/135992 cut-off events. [2024-12-02 13:11:13,617 INFO L125 PetriNetUnfolderBase]: For 257547/263361 co-relation queries the response was YES. [2024-12-02 13:11:14,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365508 conditions, 135992 events. 87211/135992 cut-off events. For 257547/263361 co-relation queries the response was YES. Maximal size of possible extension queue 2577. Compared 1164571 event pairs, 16588 based on Foata normal form. 3236/134951 useless extension candidates. Maximal degree in co-relation 365476. Up to 51214 conditions per place. [2024-12-02 13:11:14,627 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 254 selfloop transitions, 5 changer transitions 0/291 dead transitions. [2024-12-02 13:11:14,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 291 transitions, 2266 flow [2024-12-02 13:11:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:11:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:11:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2024-12-02 13:11:14,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2024-12-02 13:11:14,629 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 610 flow. Second operand 6 states and 334 transitions. [2024-12-02 13:11:14,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 291 transitions, 2266 flow [2024-12-02 13:11:18,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 291 transitions, 2140 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-12-02 13:11:18,351 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 572 flow [2024-12-02 13:11:18,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=572, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2024-12-02 13:11:18,352 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 33 predicate places. [2024-12-02 13:11:18,352 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 572 flow [2024-12-02 13:11:18,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.166666666666668) internal successors, (181), 6 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:18,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:11:18,352 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:18,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:11:18,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25830e0c-e639-427d-9ecb-ef00ea45a2d3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 13:11:18,553 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:11:18,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:18,553 INFO L85 PathProgramCache]: Analyzing trace with hash -103336038, now seen corresponding path program 1 times [2024-12-02 13:11:18,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:18,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394528251] [2024-12-02 13:11:18,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:18,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:11:18,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394528251] [2024-12-02 13:11:18,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394528251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:18,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:18,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:18,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155033274] [2024-12-02 13:11:18,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:18,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:18,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:18,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:18,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:18,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 75 [2024-12-02 13:11:18,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:18,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:11:18,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 75 [2024-12-02 13:11:18,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:11:38,162 INFO L124 PetriNetUnfolderBase]: 132407/214493 cut-off events. [2024-12-02 13:11:38,163 INFO L125 PetriNetUnfolderBase]: For 396997/408795 co-relation queries the response was YES. [2024-12-02 13:11:38,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572009 conditions, 214493 events. 132407/214493 cut-off events. For 396997/408795 co-relation queries the response was YES. Maximal size of possible extension queue 4367. Compared 2011840 event pairs, 37743 based on Foata normal form. 7138/216143 useless extension candidates. Maximal degree in co-relation 571978. Up to 110892 conditions per place. [2024-12-02 13:11:39,780 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 118 selfloop transitions, 11 changer transitions 0/162 dead transitions. [2024-12-02 13:11:39,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 162 transitions, 1239 flow [2024-12-02 13:11:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:39,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 13:11:39,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-12-02 13:11:39,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7377777777777778 [2024-12-02 13:11:39,781 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 572 flow. Second operand 3 states and 166 transitions. [2024-12-02 13:11:39,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 162 transitions, 1239 flow [2024-12-02 13:11:56,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 162 transitions, 1229 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 13:11:56,637 INFO L231 Difference]: Finished difference. Result has 107 places, 108 transitions, 632 flow [2024-12-02 13:11:56,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=632, PETRI_PLACES=107, PETRI_TRANSITIONS=108} [2024-12-02 13:11:56,638 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 33 predicate places. [2024-12-02 13:11:56,638 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 108 transitions, 632 flow [2024-12-02 13:11:56,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:11:56,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:11:56,638 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 13:11:56,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:11:56,639 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:11:56,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1382482412, now seen corresponding path program 1 times [2024-12-02 13:11:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324116255] [2024-12-02 13:11:56,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 13:11:56,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:56,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324116255] [2024-12-02 13:11:56,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324116255] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:56,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:56,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:56,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073594563] [2024-12-02 13:11:56,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:56,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:11:56,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:56,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:11:56,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:11:56,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2024-12-02 13:11:56,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 632 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) [2024-12-02 13:11:56,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:11:56,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2024-12-02 13:11:56,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:12:18,207 INFO L124 PetriNetUnfolderBase]: 149347/242530 cut-off events. [2024-12-02 13:12:18,208 INFO L125 PetriNetUnfolderBase]: For 452658/459188 co-relation queries the response was YES. [2024-12-02 13:12:19,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714213 conditions, 242530 events. 149347/242530 cut-off events. For 452658/459188 co-relation queries the response was YES. Maximal size of possible extension queue 4884. Compared 2308885 event pairs, 39825 based on Foata normal form. 5754/242394 useless extension candidates. Maximal degree in co-relation 714181. Up to 125037 conditions per place. [2024-12-02 13:12:20,365 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 177 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2024-12-02 13:12:20,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 214 transitions, 1602 flow [2024-12-02 13:12:20,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:12:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:12:20,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-12-02 13:12:20,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-12-02 13:12:20,368 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 632 flow. Second operand 4 states and 210 transitions. [2024-12-02 13:12:20,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 214 transitions, 1602 flow [2024-12-02 13:12:47,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 214 transitions, 1569 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-12-02 13:12:47,922 INFO L231 Difference]: Finished difference. Result has 108 places, 108 transitions, 633 flow [2024-12-02 13:12:47,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=633, PETRI_PLACES=108, PETRI_TRANSITIONS=108} [2024-12-02 13:12:47,923 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 34 predicate places. [2024-12-02 13:12:47,924 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 108 transitions, 633 flow [2024-12-02 13:12:47,924 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) [2024-12-02 13:12:47,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:12:47,924 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:47,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:12:47,924 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:12:47,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:47,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1179793408, now seen corresponding path program 1 times [2024-12-02 13:12:47,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:47,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926061448] [2024-12-02 13:12:47,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:12:48,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:48,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926061448] [2024-12-02 13:12:48,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926061448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:48,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:48,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:12:48,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762171792] [2024-12-02 13:12:48,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:48,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:12:48,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:48,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:12:48,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:12:48,026 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 75 [2024-12-02 13:12:48,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 108 transitions, 633 flow. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:12:48,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:12:48,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 75 [2024-12-02 13:12:48,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:13:27,616 INFO L124 PetriNetUnfolderBase]: 260711/407938 cut-off events. [2024-12-02 13:13:27,616 INFO L125 PetriNetUnfolderBase]: For 916828/935077 co-relation queries the response was YES. [2024-12-02 13:13:28,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233323 conditions, 407938 events. 260711/407938 cut-off events. For 916828/935077 co-relation queries the response was YES. Maximal size of possible extension queue 7225. Compared 3868286 event pairs, 105103 based on Foata normal form. 13140/411516 useless extension candidates. Maximal degree in co-relation 1233292. Up to 212676 conditions per place. [2024-12-02 13:13:30,382 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 199 selfloop transitions, 3 changer transitions 0/233 dead transitions. [2024-12-02 13:13:30,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 233 transitions, 1923 flow [2024-12-02 13:13:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:13:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:13:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-12-02 13:13:30,383 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7033333333333334 [2024-12-02 13:13:30,383 INFO L175 Difference]: Start difference. First operand has 108 places, 108 transitions, 633 flow. Second operand 4 states and 211 transitions. [2024-12-02 13:13:30,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 233 transitions, 1923 flow [2024-12-02 13:14:16,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 233 transitions, 1901 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 13:14:16,184 INFO L231 Difference]: Finished difference. Result has 111 places, 110 transitions, 649 flow [2024-12-02 13:14:16,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=649, PETRI_PLACES=111, PETRI_TRANSITIONS=110} [2024-12-02 13:14:16,185 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 37 predicate places. [2024-12-02 13:14:16,185 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 110 transitions, 649 flow [2024-12-02 13:14:16,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:14:16,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:14:16,185 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:14:16,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:14:16,185 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 13:14:16,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:14:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash -318387469, now seen corresponding path program 1 times [2024-12-02 13:14:16,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:14:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103664686] [2024-12-02 13:14:16,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:14:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:14:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:14:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:14:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:14:16,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103664686] [2024-12-02 13:14:16,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103664686] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:14:16,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:14:16,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:14:16,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102638735] [2024-12-02 13:14:16,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:14:16,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:14:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:14:16,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:14:16,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:14:16,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 75 [2024-12-02 13:14:16,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 110 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:14:16,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:14:16,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 75 [2024-12-02 13:14:16,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand