./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.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_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/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_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/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_3a2c0da7-c9b2-40f7-816a-b381db176ea1/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 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:21:18,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:21:18,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:21:18,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:21:18,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:21:18,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:21:18,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:21:18,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:21:18,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:21:18,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:21:18,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:21:18,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:21:18,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:21:18,215 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:21:18,215 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:21:18,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:21:18,216 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:21:18,217 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:18,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:18,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:18,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:21:18,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:21:18,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:21:18,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:21:18,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:21:18,219 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:21:18,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:21:18,219 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_3a2c0da7-c9b2-40f7-816a-b381db176ea1/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 -> 44a70169ef8abd67c211072db1308f16df00422231dd8f14aa88bc39d0b023bb [2024-12-02 07:21:18,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:21:18,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:21:18,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:21:18,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:21:18,426 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:21:18,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-12-02 07:21:21,010 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/data/a5dc726d0/7a6f5caf7b6f4ed7b387a178a55e2e98/FLAGa59a656e0 [2024-12-02 07:21:21,254 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:21:21,255 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-zero.i [2024-12-02 07:21:21,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/data/a5dc726d0/7a6f5caf7b6f4ed7b387a178a55e2e98/FLAGa59a656e0 [2024-12-02 07:21:21,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/data/a5dc726d0/7a6f5caf7b6f4ed7b387a178a55e2e98 [2024-12-02 07:21:21,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:21:21,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:21:21,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:21:21,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:21:21,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:21:21,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d61f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21, skipping insertion in model container [2024-12-02 07:21:21,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:21:21,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:21:21,857 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:21:21,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:21:21,926 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:21:21,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21 WrapperNode [2024-12-02 07:21:21,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:21:21,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:21:21,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:21:21,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:21:21,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,961 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 82 [2024-12-02 07:21:21,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:21:21,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:21:21,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:21:21,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:21:21,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,973 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,986 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 5, 7]. 50 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 6]. The 0 writes are split as follows [0, 0, 0]. [2024-12-02 07:21:21,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,991 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:21,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:21:22,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:21:22,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:21:22,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:21:22,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (1/1) ... [2024-12-02 07:21:22,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:21:22,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:22,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:21:22,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a2c0da7-c9b2-40f7-816a-b381db176ea1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-12-02 07:21:22,052 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:21:22,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:21:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:21:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 07:21:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:21:22,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:21:22,054 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 07:21:22,149 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:21:22,151 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:21:22,290 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:21:22,290 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:21:22,402 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:21:22,403 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 07:21:22,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:21:22 BoogieIcfgContainer [2024-12-02 07:21:22,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:21:22,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:21:22,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:21:22,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:21:22,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:21:21" (1/3) ... [2024-12-02 07:21:22,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4e3e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:21:22, skipping insertion in model container [2024-12-02 07:21:22,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:21:21" (2/3) ... [2024-12-02 07:21:22,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4e3e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:21:22, skipping insertion in model container [2024-12-02 07:21:22,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:21:22" (3/3) ... [2024-12-02 07:21:22,412 INFO L128 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt-zero.i [2024-12-02 07:21:22,423 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:21:22,424 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 11_fmaxsymopt-zero.i that has 2 procedures, 24 locations, 1 initial locations, 2 loop locations, and 4 error locations. [2024-12-02 07:21:22,424 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:21:22,475 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:21:22,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 28 transitions, 60 flow [2024-12-02 07:21:22,530 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-12-02 07:21:22,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:21:22,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 4/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-12-02 07:21:22,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 28 transitions, 60 flow [2024-12-02 07:21:22,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 28 transitions, 60 flow [2024-12-02 07:21:22,543 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:21:22,553 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;@639d300b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:21:22,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-12-02 07:21:22,558 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:21:22,558 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-12-02 07:21:22,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:21:22,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:22,559 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:21:22,559 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 07:21:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 254263456, now seen corresponding path program 1 times [2024-12-02 07:21:22,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:22,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117162560] [2024-12-02 07:21:22,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:22,793 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 07:21:22,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:22,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117162560] [2024-12-02 07:21:22,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117162560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:22,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:22,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:22,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327993116] [2024-12-02 07:21:22,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:22,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:22,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:22,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:22,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:22,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 28 [2024-12-02 07:21:22,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 28 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:21:22,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:22,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 28 [2024-12-02 07:21:22,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:22,898 INFO L124 PetriNetUnfolderBase]: 22/80 cut-off events. [2024-12-02 07:21:22,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:21:22,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 80 events. 22/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 227 event pairs, 2 based on Foata normal form. 6/80 useless extension candidates. Maximal degree in co-relation 120. Up to 38 conditions per place. [2024-12-02 07:21:22,900 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 13 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-12-02 07:21:22,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 86 flow [2024-12-02 07:21:22,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2024-12-02 07:21:22,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-12-02 07:21:22,911 INFO L175 Difference]: Start difference. First operand has 27 places, 28 transitions, 60 flow. Second operand 3 states and 53 transitions. [2024-12-02 07:21:22,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 86 flow [2024-12-02 07:21:22,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 86 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:21:22,917 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 56 flow [2024-12-02 07:21:22,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2024-12-02 07:21:22,921 INFO L279 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2024-12-02 07:21:22,921 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 56 flow [2024-12-02 07:21:22,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:21:22,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:22,921 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-12-02 07:21:22,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:21:22,922 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 07:21:22,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash -707769049, now seen corresponding path program 1 times [2024-12-02 07:21:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:22,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666497128] [2024-12-02 07:21:22,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:22,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:22,939 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:21:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:22,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:21:22,964 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:21:22,965 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-12-02 07:21:22,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-12-02 07:21:22,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-12-02 07:21:22,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:21:22,968 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:21:22,970 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:21:22,970 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 07:21:22,996 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:21:22,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 51 transitions, 112 flow [2024-12-02 07:21:23,009 INFO L124 PetriNetUnfolderBase]: 8/56 cut-off events. [2024-12-02 07:21:23,009 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 07:21:23,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 56 events. 8/56 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 163 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 47. Up to 3 conditions per place. [2024-12-02 07:21:23,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 51 transitions, 112 flow [2024-12-02 07:21:23,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 51 transitions, 112 flow [2024-12-02 07:21:23,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:21:23,013 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;@639d300b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:21:23,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-12-02 07:21:23,016 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:21:23,016 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-12-02 07:21:23,016 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:21:23,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:23,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:21:23,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:21:23,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 302954857, now seen corresponding path program 1 times [2024-12-02 07:21:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:23,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743540354] [2024-12-02 07:21:23,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:23,092 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 07:21:23,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:23,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743540354] [2024-12-02 07:21:23,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743540354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:23,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:23,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:23,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311907331] [2024-12-02 07:21:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:23,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:23,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:23,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:23,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:23,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 51 [2024-12-02 07:21:23,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 07:21:23,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:23,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 51 [2024-12-02 07:21:23,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:23,333 INFO L124 PetriNetUnfolderBase]: 421/977 cut-off events. [2024-12-02 07:21:23,333 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-12-02 07:21:23,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1643 conditions, 977 events. 421/977 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5999 event pairs, 54 based on Foata normal form. 108/1004 useless extension candidates. Maximal degree in co-relation 1348. Up to 517 conditions per place. [2024-12-02 07:21:23,342 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 31 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2024-12-02 07:21:23,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 193 flow [2024-12-02 07:21:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:23,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-12-02 07:21:23,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7254901960784313 [2024-12-02 07:21:23,343 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 112 flow. Second operand 3 states and 111 transitions. [2024-12-02 07:21:23,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 193 flow [2024-12-02 07:21:23,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 193 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:21:23,345 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 104 flow [2024-12-02 07:21:23,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-12-02 07:21:23,346 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-12-02 07:21:23,346 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 104 flow [2024-12-02 07:21:23,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 07:21:23,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:23,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:21:23,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:21:23,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:21:23,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:23,347 INFO L85 PathProgramCache]: Analyzing trace with hash 801666329, now seen corresponding path program 1 times [2024-12-02 07:21:23,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:23,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311084382] [2024-12-02 07:21:23,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:23,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:23,410 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 07:21:23,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:23,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311084382] [2024-12-02 07:21:23,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311084382] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:23,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:23,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592188617] [2024-12-02 07:21:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:23,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:23,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:23,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:23,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:23,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 51 [2024-12-02 07:21:23,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 07:21:23,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:23,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 51 [2024-12-02 07:21:23,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:23,568 INFO L124 PetriNetUnfolderBase]: 372/856 cut-off events. [2024-12-02 07:21:23,568 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-12-02 07:21:23,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 856 events. 372/856 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4950 event pairs, 126 based on Foata normal form. 27/799 useless extension candidates. Maximal degree in co-relation 1292. Up to 447 conditions per place. [2024-12-02 07:21:23,573 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 30 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-12-02 07:21:23,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 193 flow [2024-12-02 07:21:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:23,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-12-02 07:21:23,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-12-02 07:21:23,575 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 104 flow. Second operand 3 states and 102 transitions. [2024-12-02 07:21:23,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 193 flow [2024-12-02 07:21:23,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:23,577 INFO L231 Difference]: Finished difference. Result has 47 places, 44 transitions, 102 flow [2024-12-02 07:21:23,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=47, PETRI_TRANSITIONS=44} [2024-12-02 07:21:23,578 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-12-02 07:21:23,578 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 44 transitions, 102 flow [2024-12-02 07:21:23,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 07:21:23,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:23,578 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:23,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:21:23,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:21:23,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1579433803, now seen corresponding path program 1 times [2024-12-02 07:21:23,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:23,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212747824] [2024-12-02 07:21:23,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:23,630 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 07:21:23,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:23,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212747824] [2024-12-02 07:21:23,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212747824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:23,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:23,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:23,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547478116] [2024-12-02 07:21:23,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:23,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:23,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:23,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:23,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:23,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 51 [2024-12-02 07:21:23,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 07:21:23,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:23,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 51 [2024-12-02 07:21:23,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:23,783 INFO L124 PetriNetUnfolderBase]: 412/937 cut-off events. [2024-12-02 07:21:23,783 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-12-02 07:21:23,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 937 events. 412/937 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5632 event pairs, 72 based on Foata normal form. 24/889 useless extension candidates. Maximal degree in co-relation 1135. Up to 472 conditions per place. [2024-12-02 07:21:23,788 INFO L140 encePairwiseOnDemand]: 48/51 looper letters, 30 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-12-02 07:21:23,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 188 flow [2024-12-02 07:21:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-12-02 07:21:23,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-12-02 07:21:23,789 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 102 flow. Second operand 3 states and 102 transitions. [2024-12-02 07:21:23,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 188 flow [2024-12-02 07:21:23,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:23,791 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 100 flow [2024-12-02 07:21:23,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2024-12-02 07:21:23,792 INFO L279 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-12-02 07:21:23,792 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 100 flow [2024-12-02 07:21:23,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 07:21:23,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:23,792 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-12-02 07:21:23,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:21:23,792 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-12-02 07:21:23,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:23,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1717806117, now seen corresponding path program 1 times [2024-12-02 07:21:23,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:23,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242599857] [2024-12-02 07:21:23,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:23,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:23,802 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:21:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:23,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:21:23,812 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:21:23,812 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-12-02 07:21:23,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-12-02 07:21:23,812 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-12-02 07:21:23,813 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-12-02 07:21:23,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:21:23,813 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 07:21:23,814 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:21:23,814 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 07:21:23,852 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:21:23,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 74 transitions, 166 flow [2024-12-02 07:21:23,863 INFO L124 PetriNetUnfolderBase]: 12/82 cut-off events. [2024-12-02 07:21:23,863 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 07:21:23,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 12/82 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 266 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 69. Up to 4 conditions per place. [2024-12-02 07:21:23,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 74 transitions, 166 flow [2024-12-02 07:21:23,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 74 transitions, 166 flow [2024-12-02 07:21:23,866 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:21:23,866 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;@639d300b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:21:23,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-12-02 07:21:23,868 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:21:23,869 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-12-02 07:21:23,869 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:21:23,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:23,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:21:23,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:23,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:23,869 INFO L85 PathProgramCache]: Analyzing trace with hash 373594569, now seen corresponding path program 1 times [2024-12-02 07:21:23,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:23,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204766792] [2024-12-02 07:21:23,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:23,910 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 07:21:23,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204766792] [2024-12-02 07:21:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204766792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:23,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:23,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:23,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679629409] [2024-12-02 07:21:23,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:23,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:23,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:23,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:23,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:23,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:23,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:21:23,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:23,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:23,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:24,953 INFO L124 PetriNetUnfolderBase]: 5317/9887 cut-off events. [2024-12-02 07:21:24,953 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2024-12-02 07:21:24,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17250 conditions, 9887 events. 5317/9887 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 81051 event pairs, 806 based on Foata normal form. 1648/10785 useless extension candidates. Maximal degree in co-relation 6526. Up to 5693 conditions per place. [2024-12-02 07:21:25,045 INFO L140 encePairwiseOnDemand]: 64/74 looper letters, 49 selfloop transitions, 2 changer transitions 0/86 dead transitions. [2024-12-02 07:21:25,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 86 transitions, 304 flow [2024-12-02 07:21:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:25,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-12-02 07:21:25,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7612612612612613 [2024-12-02 07:21:25,047 INFO L175 Difference]: Start difference. First operand has 69 places, 74 transitions, 166 flow. Second operand 3 states and 169 transitions. [2024-12-02 07:21:25,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 86 transitions, 304 flow [2024-12-02 07:21:25,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 300 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-12-02 07:21:25,050 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 152 flow [2024-12-02 07:21:25,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-12-02 07:21:25,051 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 0 predicate places. [2024-12-02 07:21:25,051 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 152 flow [2024-12-02 07:21:25,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:21:25,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:25,051 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:21:25,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:21:25,051 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:25,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1303469821, now seen corresponding path program 1 times [2024-12-02 07:21:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:25,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691229346] [2024-12-02 07:21:25,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:25,110 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 07:21:25,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:25,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691229346] [2024-12-02 07:21:25,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691229346] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:25,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:25,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:25,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121465064] [2024-12-02 07:21:25,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:25,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:25,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:25,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:25,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:25,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:25,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:21:25,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:25,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:25,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:25,860 INFO L124 PetriNetUnfolderBase]: 4754/9105 cut-off events. [2024-12-02 07:21:25,860 INFO L125 PetriNetUnfolderBase]: For 671/671 co-relation queries the response was YES. [2024-12-02 07:21:25,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16026 conditions, 9105 events. 4754/9105 cut-off events. For 671/671 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 75366 event pairs, 806 based on Foata normal form. 219/8589 useless extension candidates. Maximal degree in co-relation 14380. Up to 4911 conditions per place. [2024-12-02 07:21:25,894 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 48 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-12-02 07:21:25,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 85 transitions, 300 flow [2024-12-02 07:21:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-12-02 07:21:25,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2024-12-02 07:21:25,895 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 152 flow. Second operand 3 states and 156 transitions. [2024-12-02 07:21:25,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 85 transitions, 300 flow [2024-12-02 07:21:25,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 85 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:25,898 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 150 flow [2024-12-02 07:21:25,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-12-02 07:21:25,899 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2024-12-02 07:21:25,899 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 150 flow [2024-12-02 07:21:25,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 07:21:25,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:25,900 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:25,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:21:25,900 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:25,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1473214987, now seen corresponding path program 1 times [2024-12-02 07:21:25,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:25,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590480973] [2024-12-02 07:21:25,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:25,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:25,935 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 07:21:25,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:25,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590480973] [2024-12-02 07:21:25,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590480973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:25,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:25,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:25,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38816814] [2024-12-02 07:21:25,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:25,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:25,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:25,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:25,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:25,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:25,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 07:21:25,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:25,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:25,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:26,603 INFO L124 PetriNetUnfolderBase]: 5318/9839 cut-off events. [2024-12-02 07:21:26,603 INFO L125 PetriNetUnfolderBase]: For 745/745 co-relation queries the response was YES. [2024-12-02 07:21:26,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17614 conditions, 9839 events. 5318/9839 cut-off events. For 745/745 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 79993 event pairs, 824 based on Foata normal form. 216/9352 useless extension candidates. Maximal degree in co-relation 12882. Up to 5648 conditions per place. [2024-12-02 07:21:26,648 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 48 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-12-02 07:21:26,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 83 transitions, 295 flow [2024-12-02 07:21:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-12-02 07:21:26,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2024-12-02 07:21:26,649 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 150 flow. Second operand 3 states and 156 transitions. [2024-12-02 07:21:26,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 83 transitions, 295 flow [2024-12-02 07:21:26,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 287 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:26,654 INFO L231 Difference]: Finished difference. Result has 67 places, 64 transitions, 148 flow [2024-12-02 07:21:26,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2024-12-02 07:21:26,654 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -2 predicate places. [2024-12-02 07:21:26,655 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 148 flow [2024-12-02 07:21:26,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 07:21:26,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:26,655 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:26,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:21:26,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:26,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:26,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1574975209, now seen corresponding path program 1 times [2024-12-02 07:21:26,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:26,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852906999] [2024-12-02 07:21:26,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:26,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:26,700 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 07:21:26,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:26,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852906999] [2024-12-02 07:21:26,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852906999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:26,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:26,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:26,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807208766] [2024-12-02 07:21:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:26,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:26,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:26,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:26,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:26,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 07:21:26,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:26,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:26,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:27,231 INFO L124 PetriNetUnfolderBase]: 4716/8661 cut-off events. [2024-12-02 07:21:27,231 INFO L125 PetriNetUnfolderBase]: For 658/658 co-relation queries the response was YES. [2024-12-02 07:21:27,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15576 conditions, 8661 events. 4716/8661 cut-off events. For 658/658 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 67184 event pairs, 1400 based on Foata normal form. 216/8150 useless extension candidates. Maximal degree in co-relation 7276. Up to 4872 conditions per place. [2024-12-02 07:21:27,261 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 47 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2024-12-02 07:21:27,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 82 transitions, 287 flow [2024-12-02 07:21:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:27,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-12-02 07:21:27,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6981981981981982 [2024-12-02 07:21:27,263 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 148 flow. Second operand 3 states and 155 transitions. [2024-12-02 07:21:27,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 82 transitions, 287 flow [2024-12-02 07:21:27,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 283 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:27,265 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 146 flow [2024-12-02 07:21:27,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-12-02 07:21:27,266 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -3 predicate places. [2024-12-02 07:21:27,266 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 146 flow [2024-12-02 07:21:27,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 07:21:27,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:27,267 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:27,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:21:27,267 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:27,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:27,267 INFO L85 PathProgramCache]: Analyzing trace with hash -869686192, now seen corresponding path program 1 times [2024-12-02 07:21:27,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:27,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509420884] [2024-12-02 07:21:27,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:27,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:27,322 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 07:21:27,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509420884] [2024-12-02 07:21:27,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509420884] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:27,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:27,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:21:27,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978310411] [2024-12-02 07:21:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:27,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:21:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:27,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:21:27,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:21:27,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:27,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 07:21:27,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:27,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:27,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:27,889 INFO L124 PetriNetUnfolderBase]: 5212/9269 cut-off events. [2024-12-02 07:21:27,889 INFO L125 PetriNetUnfolderBase]: For 743/743 co-relation queries the response was YES. [2024-12-02 07:21:27,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17047 conditions, 9269 events. 5212/9269 cut-off events. For 743/743 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 71593 event pairs, 1880 based on Foata normal form. 219/8564 useless extension candidates. Maximal degree in co-relation 16694. Up to 4129 conditions per place. [2024-12-02 07:21:27,962 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 67 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-12-02 07:21:27,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 102 transitions, 394 flow [2024-12-02 07:21:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:21:27,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:21:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-12-02 07:21:27,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7162162162162162 [2024-12-02 07:21:27,963 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 146 flow. Second operand 4 states and 212 transitions. [2024-12-02 07:21:27,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 102 transitions, 394 flow [2024-12-02 07:21:27,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:27,969 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 148 flow [2024-12-02 07:21:27,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-12-02 07:21:27,970 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -3 predicate places. [2024-12-02 07:21:27,970 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 148 flow [2024-12-02 07:21:27,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 07:21:27,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:27,971 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:27,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:21:27,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:27,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:27,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1190467733, now seen corresponding path program 1 times [2024-12-02 07:21:27,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:27,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865330571] [2024-12-02 07:21:27,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:27,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:28,021 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 07:21:28,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:28,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865330571] [2024-12-02 07:21:28,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865330571] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:28,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:28,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:21:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951063159] [2024-12-02 07:21:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:28,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:21:28,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:28,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:21:28,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:21:28,029 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:28,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 07:21:28,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:28,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:28,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:29,096 INFO L124 PetriNetUnfolderBase]: 8962/16346 cut-off events. [2024-12-02 07:21:29,096 INFO L125 PetriNetUnfolderBase]: For 1763/1763 co-relation queries the response was YES. [2024-12-02 07:21:29,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30244 conditions, 16346 events. 8962/16346 cut-off events. For 1763/1763 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 139457 event pairs, 4390 based on Foata normal form. 219/15186 useless extension candidates. Maximal degree in co-relation 14374. Up to 7261 conditions per place. [2024-12-02 07:21:29,161 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 74 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-12-02 07:21:29,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 109 transitions, 424 flow [2024-12-02 07:21:29,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:21:29,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:21:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-12-02 07:21:29,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7398648648648649 [2024-12-02 07:21:29,162 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 148 flow. Second operand 4 states and 219 transitions. [2024-12-02 07:21:29,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 109 transitions, 424 flow [2024-12-02 07:21:29,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 109 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 07:21:29,197 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 167 flow [2024-12-02 07:21:29,198 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-12-02 07:21:29,198 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2024-12-02 07:21:29,198 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 167 flow [2024-12-02 07:21:29,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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 07:21:29,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:29,198 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:29,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:21:29,199 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:29,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1766419574, now seen corresponding path program 1 times [2024-12-02 07:21:29,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680441851] [2024-12-02 07:21:29,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:29,252 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 07:21:29,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:29,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680441851] [2024-12-02 07:21:29,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680441851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:29,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:29,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:29,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013497527] [2024-12-02 07:21:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:29,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:29,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:29,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:29,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:29,260 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 74 [2024-12-02 07:21:29,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 07:21:29,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:29,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 74 [2024-12-02 07:21:29,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:30,295 INFO L124 PetriNetUnfolderBase]: 9386/17031 cut-off events. [2024-12-02 07:21:30,295 INFO L125 PetriNetUnfolderBase]: For 3112/3256 co-relation queries the response was YES. [2024-12-02 07:21:30,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32350 conditions, 17031 events. 9386/17031 cut-off events. For 3112/3256 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 145720 event pairs, 1970 based on Foata normal form. 336/16228 useless extension candidates. Maximal degree in co-relation 18871. Up to 9128 conditions per place. [2024-12-02 07:21:30,349 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 53 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-12-02 07:21:30,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 85 transitions, 336 flow [2024-12-02 07:21:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-12-02 07:21:30,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6981981981981982 [2024-12-02 07:21:30,350 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 167 flow. Second operand 3 states and 155 transitions. [2024-12-02 07:21:30,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 85 transitions, 336 flow [2024-12-02 07:21:30,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 85 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:21:30,354 INFO L231 Difference]: Finished difference. Result has 68 places, 64 transitions, 166 flow [2024-12-02 07:21:30,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=68, PETRI_TRANSITIONS=64} [2024-12-02 07:21:30,354 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2024-12-02 07:21:30,354 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 64 transitions, 166 flow [2024-12-02 07:21:30,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 07:21:30,355 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:30,355 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-12-02 07:21:30,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:21:30,355 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-12-02 07:21:30,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:30,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1075566630, now seen corresponding path program 1 times [2024-12-02 07:21:30,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:30,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759355010] [2024-12-02 07:21:30,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:30,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:30,364 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:21:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:21:30,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:21:30,374 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-12-02 07:21:30,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-12-02 07:21:30,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-12-02 07:21:30,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:21:30,375 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:30,376 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:21:30,376 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-12-02 07:21:30,415 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 07:21:30,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 97 transitions, 222 flow [2024-12-02 07:21:30,425 INFO L124 PetriNetUnfolderBase]: 16/108 cut-off events. [2024-12-02 07:21:30,425 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-12-02 07:21:30,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 108 events. 16/108 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 373 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 94. Up to 5 conditions per place. [2024-12-02 07:21:30,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 97 transitions, 222 flow [2024-12-02 07:21:30,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 97 transitions, 222 flow [2024-12-02 07:21:30,428 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:21:30,428 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;@639d300b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:21:30,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-12-02 07:21:30,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:21:30,430 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-12-02 07:21:30,430 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 07:21:30,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:30,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 07:21:30,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:21:30,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash 466184000, now seen corresponding path program 1 times [2024-12-02 07:21:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:30,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641196753] [2024-12-02 07:21:30,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:30,461 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 07:21:30,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:30,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641196753] [2024-12-02 07:21:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641196753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:30,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:30,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:30,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077242031] [2024-12-02 07:21:30,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:30,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:30,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:30,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:30,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:30,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:21:30,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 07:21:30,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:30,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:21:30,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:35,549 INFO L124 PetriNetUnfolderBase]: 58261/94975 cut-off events. [2024-12-02 07:21:35,549 INFO L125 PetriNetUnfolderBase]: For 6417/6417 co-relation queries the response was YES. [2024-12-02 07:21:35,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170307 conditions, 94975 events. 58261/94975 cut-off events. For 6417/6417 co-relation queries the response was YES. Maximal size of possible extension queue 4010. Compared 898112 event pairs, 9510 based on Foata normal form. 19220/107997 useless extension candidates. Maximal degree in co-relation 30712. Up to 57853 conditions per place. [2024-12-02 07:21:35,914 INFO L140 encePairwiseOnDemand]: 85/97 looper letters, 67 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2024-12-02 07:21:35,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 116 transitions, 419 flow [2024-12-02 07:21:35,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:35,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:35,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 227 transitions. [2024-12-02 07:21:35,915 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7800687285223368 [2024-12-02 07:21:35,915 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 222 flow. Second operand 3 states and 227 transitions. [2024-12-02 07:21:35,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 116 transitions, 419 flow [2024-12-02 07:21:35,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 116 transitions, 407 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-12-02 07:21:35,922 INFO L231 Difference]: Finished difference. Result has 90 places, 87 transitions, 200 flow [2024-12-02 07:21:35,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=200, PETRI_PLACES=90, PETRI_TRANSITIONS=87} [2024-12-02 07:21:35,922 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-12-02 07:21:35,922 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 87 transitions, 200 flow [2024-12-02 07:21:35,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 07:21:35,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:35,923 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 07:21:35,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:21:35,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:21:35,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:35,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1566802659, now seen corresponding path program 1 times [2024-12-02 07:21:35,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:35,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651391736] [2024-12-02 07:21:35,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:35,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:35,956 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 07:21:35,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:35,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651391736] [2024-12-02 07:21:35,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651391736] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:35,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:35,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:35,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009709141] [2024-12-02 07:21:35,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:35,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:35,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:35,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:35,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:35,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:21:35,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 07:21:35,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:35,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:21:35,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:41,285 INFO L124 PetriNetUnfolderBase]: 52002/86961 cut-off events. [2024-12-02 07:21:41,285 INFO L125 PetriNetUnfolderBase]: For 5477/5477 co-relation queries the response was YES. [2024-12-02 07:21:41,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156347 conditions, 86961 events. 52002/86961 cut-off events. For 5477/5477 co-relation queries the response was YES. Maximal size of possible extension queue 3680. Compared 838918 event pairs, 9510 based on Foata normal form. 1755/82605 useless extension candidates. Maximal degree in co-relation 140780. Up to 49839 conditions per place. [2024-12-02 07:21:41,620 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 66 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-12-02 07:21:41,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 115 transitions, 407 flow [2024-12-02 07:21:41,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:41,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-12-02 07:21:41,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7216494845360825 [2024-12-02 07:21:41,622 INFO L175 Difference]: Start difference. First operand has 90 places, 87 transitions, 200 flow. Second operand 3 states and 210 transitions. [2024-12-02 07:21:41,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 115 transitions, 407 flow [2024-12-02 07:21:41,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 115 transitions, 403 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:41,628 INFO L231 Difference]: Finished difference. Result has 89 places, 86 transitions, 198 flow [2024-12-02 07:21:41,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=89, PETRI_TRANSITIONS=86} [2024-12-02 07:21:41,629 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -1 predicate places. [2024-12-02 07:21:41,629 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 86 transitions, 198 flow [2024-12-02 07:21:41,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 07:21:41,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:41,629 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:41,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:21:41,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:21:41,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:41,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1879872117, now seen corresponding path program 1 times [2024-12-02 07:21:41,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:41,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302527860] [2024-12-02 07:21:41,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:41,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:41,656 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 07:21:41,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:41,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302527860] [2024-12-02 07:21:41,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302527860] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:41,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:41,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:41,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269305413] [2024-12-02 07:21:41,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:41,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:41,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:41,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:41,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:41,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:21:41,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 86 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 07:21:41,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:41,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:21:41,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:46,741 INFO L124 PetriNetUnfolderBase]: 57884/92795 cut-off events. [2024-12-02 07:21:46,741 INFO L125 PetriNetUnfolderBase]: For 6263/6263 co-relation queries the response was YES. [2024-12-02 07:21:46,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170843 conditions, 92795 events. 57884/92795 cut-off events. For 6263/6263 co-relation queries the response was YES. Maximal size of possible extension queue 4066. Compared 842451 event pairs, 23016 based on Foata normal form. 1752/87307 useless extension candidates. Maximal degree in co-relation 125209. Up to 57808 conditions per place. [2024-12-02 07:21:47,404 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 66 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-12-02 07:21:47,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 113 transitions, 402 flow [2024-12-02 07:21:47,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-12-02 07:21:47,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7216494845360825 [2024-12-02 07:21:47,406 INFO L175 Difference]: Start difference. First operand has 89 places, 86 transitions, 198 flow. Second operand 3 states and 210 transitions. [2024-12-02 07:21:47,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 113 transitions, 402 flow [2024-12-02 07:21:47,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 113 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:47,422 INFO L231 Difference]: Finished difference. Result has 88 places, 85 transitions, 196 flow [2024-12-02 07:21:47,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=88, PETRI_TRANSITIONS=85} [2024-12-02 07:21:47,423 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -2 predicate places. [2024-12-02 07:21:47,423 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 85 transitions, 196 flow [2024-12-02 07:21:47,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 07:21:47,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:47,423 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:47,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:21:47,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:21:47,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:47,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1853507086, now seen corresponding path program 1 times [2024-12-02 07:21:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:47,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781758992] [2024-12-02 07:21:47,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:47,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:47,452 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 07:21:47,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:47,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781758992] [2024-12-02 07:21:47,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781758992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:47,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:47,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:21:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340164374] [2024-12-02 07:21:47,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:47,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:47,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:47,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:47,453 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:47,459 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:21:47,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 85 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 07:21:47,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:47,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:21:47,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:21:52,423 INFO L124 PetriNetUnfolderBase]: 51412/82771 cut-off events. [2024-12-02 07:21:52,424 INFO L125 PetriNetUnfolderBase]: For 5600/5600 co-relation queries the response was YES. [2024-12-02 07:21:52,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152151 conditions, 82771 events. 51412/82771 cut-off events. For 5600/5600 co-relation queries the response was YES. Maximal size of possible extension queue 3597. Compared 744001 event pairs, 20568 based on Foata normal form. 1752/77997 useless extension candidates. Maximal degree in co-relation 72464. Up to 49800 conditions per place. [2024-12-02 07:21:52,861 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 65 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-12-02 07:21:52,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 394 flow [2024-12-02 07:21:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:21:52,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-12-02 07:21:52,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.718213058419244 [2024-12-02 07:21:52,862 INFO L175 Difference]: Start difference. First operand has 88 places, 85 transitions, 196 flow. Second operand 3 states and 209 transitions. [2024-12-02 07:21:52,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 112 transitions, 394 flow [2024-12-02 07:21:52,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 112 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:21:52,869 INFO L231 Difference]: Finished difference. Result has 87 places, 84 transitions, 194 flow [2024-12-02 07:21:52,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=87, PETRI_TRANSITIONS=84} [2024-12-02 07:21:52,870 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, -3 predicate places. [2024-12-02 07:21:52,870 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 194 flow [2024-12-02 07:21:52,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 07:21:52,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:21:52,870 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:52,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:21:52,870 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:21:52,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1086012409, now seen corresponding path program 1 times [2024-12-02 07:21:52,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:52,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214211152] [2024-12-02 07:21:52,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:52,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:52,956 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 07:21:52,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:52,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214211152] [2024-12-02 07:21:52,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214211152] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:52,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:52,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:21:52,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984823120] [2024-12-02 07:21:52,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:52,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:21:52,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:52,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:21:52,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:21:52,972 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 97 [2024-12-02 07:21:52,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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 07:21:52,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:21:52,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 97 [2024-12-02 07:21:52,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:01,151 INFO L124 PetriNetUnfolderBase]: 89773/136036 cut-off events. [2024-12-02 07:22:01,151 INFO L125 PetriNetUnfolderBase]: For 9412/9412 co-relation queries the response was YES. [2024-12-02 07:22:01,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257442 conditions, 136036 events. 89773/136036 cut-off events. For 9412/9412 co-relation queries the response was YES. Maximal size of possible extension queue 4799. Compared 1184848 event pairs, 12570 based on Foata normal form. 3510/128563 useless extension candidates. Maximal degree in co-relation 256632. Up to 49839 conditions per place. [2024-12-02 07:22:01,929 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 155 selfloop transitions, 6 changer transitions 0/203 dead transitions. [2024-12-02 07:22:01,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 203 transitions, 830 flow [2024-12-02 07:22:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:22:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:22:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 434 transitions. [2024-12-02 07:22:01,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7457044673539519 [2024-12-02 07:22:01,931 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 194 flow. Second operand 6 states and 434 transitions. [2024-12-02 07:22:01,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 203 transitions, 830 flow [2024-12-02 07:22:02,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 203 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:22:02,057 INFO L231 Difference]: Finished difference. Result has 90 places, 85 transitions, 208 flow [2024-12-02 07:22:02,057 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=90, PETRI_TRANSITIONS=85} [2024-12-02 07:22:02,058 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-12-02 07:22:02,058 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 85 transitions, 208 flow [2024-12-02 07:22:02,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.4) internal successors, (232), 5 states have internal predecessors, (232), 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 07:22:02,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:02,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:02,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:22:02,058 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:22:02,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash 693354251, now seen corresponding path program 1 times [2024-12-02 07:22:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:02,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50966156] [2024-12-02 07:22:02,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:02,117 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 07:22:02,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50966156] [2024-12-02 07:22:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50966156] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:02,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:22:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014768599] [2024-12-02 07:22:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:02,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:22:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:02,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:22:02,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:02,135 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 97 [2024-12-02 07:22:02,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 85 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 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 07:22:02,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:02,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 97 [2024-12-02 07:22:02,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:11,401 INFO L124 PetriNetUnfolderBase]: 95018/153098 cut-off events. [2024-12-02 07:22:11,402 INFO L125 PetriNetUnfolderBase]: For 18702/18702 co-relation queries the response was YES. [2024-12-02 07:22:11,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290646 conditions, 153098 events. 95018/153098 cut-off events. For 18702/18702 co-relation queries the response was YES. Maximal size of possible extension queue 5378. Compared 1466540 event pairs, 55734 based on Foata normal form. 1755/141268 useless extension candidates. Maximal degree in co-relation 284960. Up to 88158 conditions per place. [2024-12-02 07:22:12,038 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 101 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-12-02 07:22:12,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 145 transitions, 566 flow [2024-12-02 07:22:12,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:22:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 07:22:12,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-12-02 07:22:12,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7139175257731959 [2024-12-02 07:22:12,040 INFO L175 Difference]: Start difference. First operand has 90 places, 85 transitions, 208 flow. Second operand 4 states and 277 transitions. [2024-12-02 07:22:12,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 145 transitions, 566 flow [2024-12-02 07:22:12,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 145 transitions, 564 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 07:22:12,065 INFO L231 Difference]: Finished difference. Result has 93 places, 85 transitions, 216 flow [2024-12-02 07:22:12,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=93, PETRI_TRANSITIONS=85} [2024-12-02 07:22:12,065 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 3 predicate places. [2024-12-02 07:22:12,065 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 85 transitions, 216 flow [2024-12-02 07:22:12,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 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 07:22:12,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:12,065 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:12,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:22:12,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:22:12,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1255819871, now seen corresponding path program 1 times [2024-12-02 07:22:12,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:12,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235789839] [2024-12-02 07:22:12,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:12,090 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 07:22:12,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:12,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235789839] [2024-12-02 07:22:12,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235789839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:12,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:12,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:22:12,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344296851] [2024-12-02 07:22:12,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:12,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:12,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:12,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:12,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:12,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:22:12,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 85 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:22:12,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:12,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:22:12,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:19,867 INFO L124 PetriNetUnfolderBase]: 79912/127408 cut-off events. [2024-12-02 07:22:19,867 INFO L125 PetriNetUnfolderBase]: For 32570/32570 co-relation queries the response was YES. [2024-12-02 07:22:20,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249153 conditions, 127408 events. 79912/127408 cut-off events. For 32570/32570 co-relation queries the response was YES. Maximal size of possible extension queue 4595. Compared 1174993 event pairs, 21564 based on Foata normal form. 2376/120944 useless extension candidates. Maximal degree in co-relation 203281. Up to 78760 conditions per place. [2024-12-02 07:22:20,443 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 69 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2024-12-02 07:22:20,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 113 transitions, 439 flow [2024-12-02 07:22:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:20,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:22:20,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-12-02 07:22:20,445 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.718213058419244 [2024-12-02 07:22:20,445 INFO L175 Difference]: Start difference. First operand has 93 places, 85 transitions, 216 flow. Second operand 3 states and 209 transitions. [2024-12-02 07:22:20,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 113 transitions, 439 flow [2024-12-02 07:22:20,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 113 transitions, 427 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 07:22:20,512 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 212 flow [2024-12-02 07:22:20,512 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-12-02 07:22:20,512 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 1 predicate places. [2024-12-02 07:22:20,512 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 212 flow [2024-12-02 07:22:20,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:22:20,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:20,513 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:20,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:22:20,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:22:20,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:20,513 INFO L85 PathProgramCache]: Analyzing trace with hash -275709834, now seen corresponding path program 1 times [2024-12-02 07:22:20,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:20,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18472767] [2024-12-02 07:22:20,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:20,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:20,546 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 07:22:20,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:20,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18472767] [2024-12-02 07:22:20,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18472767] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:20,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:20,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:22:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940585806] [2024-12-02 07:22:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:20,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:20,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:20,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:20,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-12-02 07:22:20,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:22:20,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:20,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-12-02 07:22:20,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:27,187 INFO L124 PetriNetUnfolderBase]: 71502/118998 cut-off events. [2024-12-02 07:22:27,188 INFO L125 PetriNetUnfolderBase]: For 21507/21507 co-relation queries the response was YES. [2024-12-02 07:22:27,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226894 conditions, 118998 events. 71502/118998 cut-off events. For 21507/21507 co-relation queries the response was YES. Maximal size of possible extension queue 4181. Compared 1162933 event pairs, 13644 based on Foata normal form. 2376/113614 useless extension candidates. Maximal degree in co-relation 185899. Up to 67848 conditions per place. [2024-12-02 07:22:27,747 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 68 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-12-02 07:22:27,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 112 transitions, 427 flow [2024-12-02 07:22:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:22:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-12-02 07:22:27,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7147766323024055 [2024-12-02 07:22:27,748 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 212 flow. Second operand 3 states and 208 transitions. [2024-12-02 07:22:27,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 112 transitions, 427 flow [2024-12-02 07:22:27,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 112 transitions, 423 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:22:27,839 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 210 flow [2024-12-02 07:22:27,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2024-12-02 07:22:27,839 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-12-02 07:22:27,839 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 210 flow [2024-12-02 07:22:27,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:22:27,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:27,839 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:27,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:22:27,840 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:22:27,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1730609746, now seen corresponding path program 1 times [2024-12-02 07:22:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10589466] [2024-12-02 07:22:27,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:27,901 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 07:22:27,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:27,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10589466] [2024-12-02 07:22:27,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10589466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:27,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:27,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:22:27,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472126088] [2024-12-02 07:22:27,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:27,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:22:27,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:27,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:22:27,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:22:27,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 97 [2024-12-02 07:22:27,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 07:22:27,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:27,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 97 [2024-12-02 07:22:27,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:22:38,863 INFO L124 PetriNetUnfolderBase]: 123498/186445 cut-off events. [2024-12-02 07:22:38,863 INFO L125 PetriNetUnfolderBase]: For 37329/37329 co-relation queries the response was YES. [2024-12-02 07:22:39,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374837 conditions, 186445 events. 123498/186445 cut-off events. For 37329/37329 co-relation queries the response was YES. Maximal size of possible extension queue 5848. Compared 1648573 event pairs, 14982 based on Foata normal form. 4818/176815 useless extension candidates. Maximal degree in co-relation 307288. Up to 68475 conditions per place. [2024-12-02 07:22:39,759 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 161 selfloop transitions, 6 changer transitions 0/206 dead transitions. [2024-12-02 07:22:39,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 206 transitions, 902 flow [2024-12-02 07:22:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:22:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:22:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 430 transitions. [2024-12-02 07:22:39,760 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.738831615120275 [2024-12-02 07:22:39,760 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 210 flow. Second operand 6 states and 430 transitions. [2024-12-02 07:22:39,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 206 transitions, 902 flow [2024-12-02 07:22:40,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 206 transitions, 882 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 07:22:40,155 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 224 flow [2024-12-02 07:22:40,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2024-12-02 07:22:40,155 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 3 predicate places. [2024-12-02 07:22:40,155 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 224 flow [2024-12-02 07:22:40,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 07:22:40,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:22:40,156 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:40,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:22:40,156 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 07:22:40,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2109295158, now seen corresponding path program 1 times [2024-12-02 07:22:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903382600] [2024-12-02 07:22:40,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:40,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:40,203 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 07:22:40,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:40,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903382600] [2024-12-02 07:22:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903382600] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:40,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:40,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:22:40,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399729156] [2024-12-02 07:22:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:40,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:22:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:40,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:22:40,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:40,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 97 [2024-12-02 07:22:40,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 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 07:22:40,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:22:40,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 97 [2024-12-02 07:22:40,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand