./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/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_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu --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 0.2.3-dev-9bd2c7f [2023-11-19 07:58:24,770 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:24,908 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:58:24,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:24,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:24,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:24,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:24,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:24,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:24,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:24,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:24,962 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:24,963 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:24,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:24,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:24,966 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:24,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:24,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:24,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:24,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:24,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:24,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:24,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:58:24,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:24,971 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:24,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:24,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:24,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:24,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:24,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:24,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:24,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:24,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:24,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:24,976 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:24,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:24,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:24,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:24,977 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:24,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:24,978 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:24,979 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_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2023-11-19 07:58:25,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:25,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:25,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:25,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:25,350 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:25,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-19 07:58:28,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:28,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:28,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-19 07:58:28,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/data/19f4d77ad/f15d2209bdf04787b6e14a7e3f89b03f/FLAG4a3943804 [2023-11-19 07:58:28,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/data/19f4d77ad/f15d2209bdf04787b6e14a7e3f89b03f [2023-11-19 07:58:28,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:28,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:28,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:28,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:28,961 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:28,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:28" (1/1) ... [2023-11-19 07:58:28,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b46c58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:28, skipping insertion in model container [2023-11-19 07:58:28,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:28" (1/1) ... [2023-11-19 07:58:29,030 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:29,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:29,601 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:29,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:29,771 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:58:29,780 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:29,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29 WrapperNode [2023-11-19 07:58:29,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:29,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:29,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:29,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:29,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,851 INFO L138 Inliner]: procedures = 271, calls = 46, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 112 [2023-11-19 07:58:29,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:29,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:29,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:29,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:29,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,888 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:29,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:29,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:29,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:29,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:29,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:29,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:29,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2feae65-fcd0-4d0e-8477-5568a5e522c5/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-19 07:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-11-19 07:58:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-11-19 07:58:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-11-19 07:58:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-11-19 07:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-11-19 07:58:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-11-19 07:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:30,043 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:58:30,412 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:30,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:30,682 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:30,694 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:30,694 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:58:30,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:30 BoogieIcfgContainer [2023-11-19 07:58:30,700 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:30,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:30,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:30,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:30,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:28" (1/3) ... [2023-11-19 07:58:30,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76115ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:30, skipping insertion in model container [2023-11-19 07:58:30,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29" (2/3) ... [2023-11-19 07:58:30,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76115ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:30, skipping insertion in model container [2023-11-19 07:58:30,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:30" (3/3) ... [2023-11-19 07:58:30,710 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-11-19 07:58:30,719 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:58:30,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:30,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-19 07:58:30,756 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:58:30,899 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:58:30,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 183 transitions, 378 flow [2023-11-19 07:58:31,031 INFO L124 PetriNetUnfolderBase]: 14/180 cut-off events. [2023-11-19 07:58:31,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:31,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 180 events. 14/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 444 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-11-19 07:58:31,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 183 transitions, 378 flow [2023-11-19 07:58:31,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 180 transitions, 369 flow [2023-11-19 07:58:31,062 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:58:31,073 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 180 transitions, 369 flow [2023-11-19 07:58:31,076 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 180 transitions, 369 flow [2023-11-19 07:58:31,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 180 transitions, 369 flow [2023-11-19 07:58:31,130 INFO L124 PetriNetUnfolderBase]: 14/180 cut-off events. [2023-11-19 07:58:31,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:31,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 180 events. 14/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 442 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-11-19 07:58:31,143 INFO L119 LiptonReduction]: Number of co-enabled transitions 14562 [2023-11-19 07:58:36,708 INFO L134 LiptonReduction]: Checked pairs total: 30302 [2023-11-19 07:58:36,709 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-11-19 07:58:36,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:36,734 INFO L357 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, mHoare=true, 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;@21c35e6d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:36,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-19 07:58:36,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:58:36,743 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2023-11-19 07:58:36,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:58:36,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:36,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:36,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:58:36,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1941844041, now seen corresponding path program 1 times [2023-11-19 07:58:36,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:36,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246700942] [2023-11-19 07:58:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:37,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:37,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246700942] [2023-11-19 07:58:37,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246700942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:37,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:37,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558607590] [2023-11-19 07:58:37,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:37,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:37,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:37,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:37,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 350 [2023-11-19 07:58:37,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2023-11-19 07:58:37,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:37,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 350 [2023-11-19 07:58:37,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:40,888 INFO L124 PetriNetUnfolderBase]: 20516/29453 cut-off events. [2023-11-19 07:58:40,888 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2023-11-19 07:58:40,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56671 conditions, 29453 events. 20516/29453 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 185693 event pairs, 11676 based on Foata normal form. 0/22052 useless extension candidates. Maximal degree in co-relation 56660. Up to 20193 conditions per place. [2023-11-19 07:58:41,235 INFO L140 encePairwiseOnDemand]: 341/350 looper letters, 80 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-19 07:58:41,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 89 transitions, 357 flow [2023-11-19 07:58:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:58:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-19 07:58:41,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2023-11-19 07:58:41,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-19 07:58:41,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-19 07:58:41,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:41,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-19 07:58:41,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2023-11-19 07:58:41,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:41,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:41,280 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 123 flow. Second operand 3 states and 585 transitions. [2023-11-19 07:58:41,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 89 transitions, 357 flow [2023-11-19 07:58:41,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:58:41,292 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 124 flow [2023-11-19 07:58:41,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2023-11-19 07:58:41,300 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2023-11-19 07:58:41,301 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 124 flow [2023-11-19 07:58:41,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 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) [2023-11-19 07:58:41,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:41,302 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:41,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:41,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:58:41,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 161877772, now seen corresponding path program 1 times [2023-11-19 07:58:41,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:41,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251199376] [2023-11-19 07:58:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:41,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:41,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:41,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251199376] [2023-11-19 07:58:41,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251199376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:41,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:41,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:58:41,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492095675] [2023-11-19 07:58:41,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:41,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:41,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:41,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 350 [2023-11-19 07:58:41,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-19 07:58:41,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:41,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 350 [2023-11-19 07:58:41,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:47,200 INFO L124 PetriNetUnfolderBase]: 45884/62677 cut-off events. [2023-11-19 07:58:47,202 INFO L125 PetriNetUnfolderBase]: For 6723/6723 co-relation queries the response was YES. [2023-11-19 07:58:47,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133026 conditions, 62677 events. 45884/62677 cut-off events. For 6723/6723 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 366528 event pairs, 13758 based on Foata normal form. 0/49818 useless extension candidates. Maximal degree in co-relation 133016. Up to 32553 conditions per place. [2023-11-19 07:58:47,635 INFO L140 encePairwiseOnDemand]: 338/350 looper letters, 80 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2023-11-19 07:58:47,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 400 flow [2023-11-19 07:58:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:47,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:58:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2023-11-19 07:58:47,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2023-11-19 07:58:47,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2023-11-19 07:58:47,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2023-11-19 07:58:47,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:47,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2023-11-19 07:58:47,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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) [2023-11-19 07:58:47,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:47,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:47,648 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 124 flow. Second operand 3 states and 576 transitions. [2023-11-19 07:58:47,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 400 flow [2023-11-19 07:58:47,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:58:47,653 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 190 flow [2023-11-19 07:58:47,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2023-11-19 07:58:47,654 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-19 07:58:47,655 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 190 flow [2023-11-19 07:58:47,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-19 07:58:47,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:47,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:47,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:47,656 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:58:47,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 161877806, now seen corresponding path program 1 times [2023-11-19 07:58:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:47,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659065508] [2023-11-19 07:58:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:47,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:47,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:47,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659065508] [2023-11-19 07:58:47,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659065508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:47,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:47,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:58:47,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270200781] [2023-11-19 07:58:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:47,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:58:47,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:47,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:47,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:47,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 350 [2023-11-19 07:58:47,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-19 07:58:47,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:47,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 350 [2023-11-19 07:58:47,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:58:54,240 INFO L124 PetriNetUnfolderBase]: 54235/74748 cut-off events. [2023-11-19 07:58:54,241 INFO L125 PetriNetUnfolderBase]: For 20225/20261 co-relation queries the response was YES. [2023-11-19 07:58:54,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175591 conditions, 74748 events. 54235/74748 cut-off events. For 20225/20261 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 453891 event pairs, 20644 based on Foata normal form. 1716/65848 useless extension candidates. Maximal degree in co-relation 175578. Up to 40019 conditions per place. [2023-11-19 07:58:54,797 INFO L140 encePairwiseOnDemand]: 338/350 looper letters, 79 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2023-11-19 07:58:54,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 96 transitions, 472 flow [2023-11-19 07:58:54,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:54,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:58:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-11-19 07:58:54,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2023-11-19 07:58:54,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-11-19 07:58:54,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-11-19 07:58:54,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:54,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-11-19 07:58:54,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 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) [2023-11-19 07:58:54,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:54,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:58:54,812 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 190 flow. Second operand 3 states and 574 transitions. [2023-11-19 07:58:54,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 96 transitions, 472 flow [2023-11-19 07:58:54,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 96 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:58:54,859 INFO L231 Difference]: Finished difference. Result has 60 places, 62 transitions, 248 flow [2023-11-19 07:58:54,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2023-11-19 07:58:54,864 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2023-11-19 07:58:54,869 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 248 flow [2023-11-19 07:58:54,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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) [2023-11-19 07:58:54,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:58:54,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:54,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:54,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:58:54,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:54,873 INFO L85 PathProgramCache]: Analyzing trace with hash 694542968, now seen corresponding path program 1 times [2023-11-19 07:58:54,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:54,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439066202] [2023-11-19 07:58:54,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:54,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439066202] [2023-11-19 07:58:55,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439066202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:55,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:55,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157729068] [2023-11-19 07:58:55,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:55,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:55,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:55,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:55,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:55,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-11-19 07:58:55,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 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) [2023-11-19 07:58:55,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:58:55,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-11-19 07:58:55,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:01,533 INFO L124 PetriNetUnfolderBase]: 55564/75977 cut-off events. [2023-11-19 07:59:01,533 INFO L125 PetriNetUnfolderBase]: For 39413/39601 co-relation queries the response was YES. [2023-11-19 07:59:01,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192275 conditions, 75977 events. 55564/75977 cut-off events. For 39413/39601 co-relation queries the response was YES. Maximal size of possible extension queue 1615. Compared 450460 event pairs, 26885 based on Foata normal form. 517/65691 useless extension candidates. Maximal degree in co-relation 192260. Up to 51518 conditions per place. [2023-11-19 07:59:02,036 INFO L140 encePairwiseOnDemand]: 337/350 looper letters, 127 selfloop transitions, 9 changer transitions 0/141 dead transitions. [2023-11-19 07:59:02,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 141 transitions, 798 flow [2023-11-19 07:59:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:59:02,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:59:02,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 755 transitions. [2023-11-19 07:59:02,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2023-11-19 07:59:02,042 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 755 transitions. [2023-11-19 07:59:02,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 755 transitions. [2023-11-19 07:59:02,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:02,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 755 transitions. [2023-11-19 07:59:02,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 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) [2023-11-19 07:59:02,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 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) [2023-11-19 07:59:02,054 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 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) [2023-11-19 07:59:02,054 INFO L175 Difference]: Start difference. First operand has 60 places, 62 transitions, 248 flow. Second operand 4 states and 755 transitions. [2023-11-19 07:59:02,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 141 transitions, 798 flow [2023-11-19 07:59:02,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 141 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:02,128 INFO L231 Difference]: Finished difference. Result has 63 places, 69 transitions, 326 flow [2023-11-19 07:59:02,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=63, PETRI_TRANSITIONS=69} [2023-11-19 07:59:02,130 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-19 07:59:02,130 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 326 flow [2023-11-19 07:59:02,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 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) [2023-11-19 07:59:02,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:02,132 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:59:02,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:59:02,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:59:02,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash -183772037, now seen corresponding path program 1 times [2023-11-19 07:59:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:02,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070742663] [2023-11-19 07:59:02,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:02,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:59:02,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:02,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070742663] [2023-11-19 07:59:02,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070742663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:02,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:02,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887426728] [2023-11-19 07:59:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:02,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:02,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:02,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 350 [2023-11-19 07:59:02,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2023-11-19 07:59:02,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:02,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 350 [2023-11-19 07:59:02,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:07,838 INFO L124 PetriNetUnfolderBase]: 42984/60597 cut-off events. [2023-11-19 07:59:07,838 INFO L125 PetriNetUnfolderBase]: For 44950/46078 co-relation queries the response was YES. [2023-11-19 07:59:08,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162277 conditions, 60597 events. 42984/60597 cut-off events. For 44950/46078 co-relation queries the response was YES. Maximal size of possible extension queue 1461. Compared 383590 event pairs, 9919 based on Foata normal form. 141/52819 useless extension candidates. Maximal degree in co-relation 162261. Up to 34809 conditions per place. [2023-11-19 07:59:08,597 INFO L140 encePairwiseOnDemand]: 346/350 looper letters, 89 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2023-11-19 07:59:08,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 110 transitions, 664 flow [2023-11-19 07:59:08,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:08,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:08,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 570 transitions. [2023-11-19 07:59:08,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2023-11-19 07:59:08,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 570 transitions. [2023-11-19 07:59:08,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 570 transitions. [2023-11-19 07:59:08,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:08,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 570 transitions. [2023-11-19 07:59:08,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-19 07:59:08,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:59:08,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:59:08,612 INFO L175 Difference]: Start difference. First operand has 63 places, 69 transitions, 326 flow. Second operand 3 states and 570 transitions. [2023-11-19 07:59:08,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 110 transitions, 664 flow [2023-11-19 07:59:08,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 654 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-19 07:59:08,660 INFO L231 Difference]: Finished difference. Result has 63 places, 69 transitions, 328 flow [2023-11-19 07:59:08,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=63, PETRI_TRANSITIONS=69} [2023-11-19 07:59:08,662 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-19 07:59:08,662 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 328 flow [2023-11-19 07:59:08,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2023-11-19 07:59:08,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:08,663 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 07:59:08,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:59:08,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:59:08,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:08,664 INFO L85 PathProgramCache]: Analyzing trace with hash -183772035, now seen corresponding path program 1 times [2023-11-19 07:59:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:08,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017394151] [2023-11-19 07:59:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017394151] [2023-11-19 07:59:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017394151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:08,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:08,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:59:08,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447774490] [2023-11-19 07:59:08,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:08,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:59:08,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:08,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:59:08,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:59:08,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 350 [2023-11-19 07:59:08,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2023-11-19 07:59:08,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:08,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 350 [2023-11-19 07:59:08,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:59:13,380 INFO L124 PetriNetUnfolderBase]: 37046/52639 cut-off events. [2023-11-19 07:59:13,380 INFO L125 PetriNetUnfolderBase]: For 57888/59016 co-relation queries the response was YES. [2023-11-19 07:59:13,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149114 conditions, 52639 events. 37046/52639 cut-off events. For 57888/59016 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 333705 event pairs, 5242 based on Foata normal form. 1929/49276 useless extension candidates. Maximal degree in co-relation 149098. Up to 43857 conditions per place. [2023-11-19 07:59:13,773 INFO L140 encePairwiseOnDemand]: 348/350 looper letters, 90 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2023-11-19 07:59:13,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 654 flow [2023-11-19 07:59:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:59:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:59:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2023-11-19 07:59:13,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5438095238095239 [2023-11-19 07:59:13,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2023-11-19 07:59:13,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2023-11-19 07:59:13,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:59:13,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2023-11-19 07:59:13,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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) [2023-11-19 07:59:13,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:59:13,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 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) [2023-11-19 07:59:13,785 INFO L175 Difference]: Start difference. First operand has 63 places, 69 transitions, 328 flow. Second operand 3 states and 571 transitions. [2023-11-19 07:59:13,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 654 flow [2023-11-19 07:59:13,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 108 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:59:13,869 INFO L231 Difference]: Finished difference. Result has 63 places, 68 transitions, 322 flow [2023-11-19 07:59:13,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=63, PETRI_TRANSITIONS=68} [2023-11-19 07:59:13,870 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-19 07:59:13,870 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 68 transitions, 322 flow [2023-11-19 07:59:13,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2023-11-19 07:59:13,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:59:13,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:59:13,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:59:13,872 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 07:59:13,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:59:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash -751400260, now seen corresponding path program 1 times [2023-11-19 07:59:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:59:13,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153564602] [2023-11-19 07:59:13,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:59:13,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:14,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:59:14,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:14,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153564602] [2023-11-19 07:59:14,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153564602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:14,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:14,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:59:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815519731] [2023-11-19 07:59:14,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:14,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:14,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:14,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:14,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-11-19 07:59:14,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 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) [2023-11-19 07:59:14,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:59:14,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-11-19 07:59:14,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand