./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:45,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:45,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:45,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:45,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:45,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:45,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:45,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:45,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:45,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:45,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:45,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:45,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:45,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:45,211 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:45,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:45,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:45,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:45,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:45,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:45,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:45,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:45,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:45,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:45,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:45,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:45,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:45,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:45,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:45,219 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:45,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:45,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:45,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:45,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:45,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:45,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:45,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:45,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:45,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:45,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:45,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:45,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:45,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:45,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:45,228 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-10-31 21:59:45,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:45,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:45,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:45,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:45,547 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:45,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i Unable to find full path for "g++" [2024-10-31 21:59:47,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:47,898 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:47,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-10-31 21:59:47,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/data/1f22f832a/d49ab1a74cbc4272979c933b3dead7ff/FLAG1e4607c56 [2024-10-31 21:59:47,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/data/1f22f832a/d49ab1a74cbc4272979c933b3dead7ff [2024-10-31 21:59:47,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:47,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:47,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:47,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:47,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:47,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:47" (1/1) ... [2024-10-31 21:59:47,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e4c0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:47, skipping insertion in model container [2024-10-31 21:59:47,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:47" (1/1) ... [2024-10-31 21:59:48,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:48,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:48,693 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:48,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:48,867 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:48,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48 WrapperNode [2024-10-31 21:59:48,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:48,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:48,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:48,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:48,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,930 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 106 [2024-10-31 21:59:48,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:48,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:48,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:48,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:48,947 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,969 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-10-31 21:59:48,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:48,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:49,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:49,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:49,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:49,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:49,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:49,007 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (1/1) ... [2024-10-31 21:59:49,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:49,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:49,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:49,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b10408-139c-4498-bf3b-8b39722c8cea/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-10-31 21:59:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-10-31 21:59:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 21:59:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 21:59:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-10-31 21:59:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-10-31 21:59:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-10-31 21:59:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-10-31 21:59:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:59:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:59:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:49,089 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:59:49,500 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:49,502 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:49,823 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:59:49,824 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:50,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:50,022 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 21:59:50,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:50 BoogieIcfgContainer [2024-10-31 21:59:50,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:50,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:50,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:50,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:50,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:47" (1/3) ... [2024-10-31 21:59:50,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21142405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:48" (2/3) ... [2024-10-31 21:59:50,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21142405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:50, skipping insertion in model container [2024-10-31 21:59:50,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:50" (3/3) ... [2024-10-31 21:59:50,039 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-10-31 21:59:50,060 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:50,060 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 21:59:50,061 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:59:50,133 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 21:59:50,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 158 flow [2024-10-31 21:59:50,233 INFO L124 PetriNetUnfolderBase]: 6/70 cut-off events. [2024-10-31 21:59:50,233 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:50,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 6/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 180 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2024-10-31 21:59:50,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 158 flow [2024-10-31 21:59:50,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 70 transitions, 149 flow [2024-10-31 21:59:50,254 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:50,261 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;@56ecec5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:50,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-31 21:59:50,276 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:59:50,277 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-31 21:59:50,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:59:50,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:50,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:50,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-31 21:59:50,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1937893411, now seen corresponding path program 1 times [2024-10-31 21:59:50,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837075176] [2024-10-31 21:59:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:50,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:50,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837075176] [2024-10-31 21:59:50,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837075176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:50,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:50,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542116001] [2024-10-31 21:59:50,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:50,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:50,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:50,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-31 21:59:50,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:50,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:50,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-31 21:59:50,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:59:56,452 INFO L124 PetriNetUnfolderBase]: 27700/42528 cut-off events. [2024-10-31 21:59:56,453 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-10-31 21:59:56,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79469 conditions, 42528 events. 27700/42528 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 1228. Compared 328229 event pairs, 15149 based on Foata normal form. 3641/44000 useless extension candidates. Maximal degree in co-relation 79458. Up to 23511 conditions per place. [2024-10-31 21:59:57,013 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 103 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2024-10-31 21:59:57,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 499 flow [2024-10-31 21:59:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:59:57,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2024-10-31 21:59:57,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8047945205479452 [2024-10-31 21:59:57,035 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 149 flow. Second operand 4 states and 235 transitions. [2024-10-31 21:59:57,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 499 flow [2024-10-31 21:59:57,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 492 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:59:57,055 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 166 flow [2024-10-31 21:59:57,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2024-10-31 21:59:57,063 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2024-10-31 21:59:57,065 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 166 flow [2024-10-31 21:59:57,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:57,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:59:57,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:57,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:57,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-31 21:59:57,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:57,069 INFO L85 PathProgramCache]: Analyzing trace with hash 456728487, now seen corresponding path program 1 times [2024-10-31 21:59:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:57,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568122739] [2024-10-31 21:59:57,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:57,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:57,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:57,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568122739] [2024-10-31 21:59:57,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568122739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:57,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:57,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:57,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223167601] [2024-10-31 21:59:57,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:57,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:57,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:57,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:57,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2024-10-31 21:59:57,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:57,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:59:57,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2024-10-31 21:59:57,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:06,431 INFO L124 PetriNetUnfolderBase]: 56041/91506 cut-off events. [2024-10-31 22:00:06,431 INFO L125 PetriNetUnfolderBase]: For 13972/15868 co-relation queries the response was YES. [2024-10-31 22:00:06,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180519 conditions, 91506 events. 56041/91506 cut-off events. For 13972/15868 co-relation queries the response was YES. Maximal size of possible extension queue 1902. Compared 793125 event pairs, 19257 based on Foata normal form. 672/86215 useless extension candidates. Maximal degree in co-relation 180508. Up to 33518 conditions per place. [2024-10-31 22:00:07,267 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 128 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2024-10-31 22:00:07,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 163 transitions, 680 flow [2024-10-31 22:00:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:00:07,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:00:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2024-10-31 22:00:07,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7561643835616438 [2024-10-31 22:00:07,274 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 166 flow. Second operand 5 states and 276 transitions. [2024-10-31 22:00:07,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 163 transitions, 680 flow [2024-10-31 22:00:07,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 163 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:00:07,633 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 232 flow [2024-10-31 22:00:07,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-10-31 22:00:07,634 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2024-10-31 22:00:07,635 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 232 flow [2024-10-31 22:00:07,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:07,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:07,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:07,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-31 22:00:07,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1273681719, now seen corresponding path program 1 times [2024-10-31 22:00:07,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530383103] [2024-10-31 22:00:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:07,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:07,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530383103] [2024-10-31 22:00:07,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530383103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:07,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:07,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:00:07,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290092508] [2024-10-31 22:00:07,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:00:07,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:07,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:00:07,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:00:07,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2024-10-31 22:00:07,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:07,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:07,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2024-10-31 22:00:07,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand