./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya --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 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:53:08,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:53:08,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:53:08,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:53:08,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:53:08,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:53:08,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:53:08,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:53:08,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:53:08,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:53:08,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:53:08,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:53:08,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:53:08,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:53:08,178 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:53:08,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:53:08,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:53:08,179 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:53:08,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:53:08,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:53:08,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:53:08,181 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:53:08,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:53:08,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:53:08,182 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:53:08,183 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:53:08,183 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:53:08,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:53:08,184 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:53:08,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:53:08,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:53:08,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:53:08,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:53:08,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:53:08,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:53:08,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:53:08,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:53:08,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:53:08,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:53:08,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:53:08,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:53:08,187 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:53:08,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:53:08,188 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:53:08,188 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_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2023-11-29 03:53:08,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:53:08,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:53:08,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:53:08,409 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:53:08,409 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:53:08,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2023-11-29 03:53:11,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:53:11,384 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:53:11,385 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2023-11-29 03:53:11,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/data/530f67b1d/ecb2b9404c0b4999a00c89d45db954d5/FLAGcb2ca5e8a [2023-11-29 03:53:11,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/data/530f67b1d/ecb2b9404c0b4999a00c89d45db954d5 [2023-11-29 03:53:11,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:53:11,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:53:11,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:53:11,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:53:11,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:53:11,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:11,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7cd60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11, skipping insertion in model container [2023-11-29 03:53:11,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:11,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:53:11,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:53:11,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:53:11,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:53:11,992 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:53:11,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11 WrapperNode [2023-11-29 03:53:11,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:53:11,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:53:11,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:53:11,995 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:53:12,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,030 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 179 [2023-11-29 03:53:12,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:53:12,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:53:12,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:53:12,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:53:12,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,057 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2023-11-29 03:53:12,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:53:12,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:53:12,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:53:12,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:53:12,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (1/1) ... [2023-11-29 03:53:12,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:53:12,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:53:12,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:53:12,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:53:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:53:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 03:53:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 03:53:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 03:53:12,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 03:53:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 03:53:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:53:12,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:53:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:53:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:53:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 03:53:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:53:12,134 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:53:12,238 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:53:12,240 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:53:12,552 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:53:12,720 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:53:12,721 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:53:12,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:53:12 BoogieIcfgContainer [2023-11-29 03:53:12,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:53:12,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:53:12,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:53:12,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:53:12,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:53:11" (1/3) ... [2023-11-29 03:53:12,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a69e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:53:12, skipping insertion in model container [2023-11-29 03:53:12,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:53:11" (2/3) ... [2023-11-29 03:53:12,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a69e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:53:12, skipping insertion in model container [2023-11-29 03:53:12,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:53:12" (3/3) ... [2023-11-29 03:53:12,729 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-11-29 03:53:12,736 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:53:12,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:53:12,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-29 03:53:12,745 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:53:12,805 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 03:53:12,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 73 transitions, 160 flow [2023-11-29 03:53:12,866 INFO L124 PetriNetUnfolderBase]: 12/71 cut-off events. [2023-11-29 03:53:12,866 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 03:53:12,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 71 events. 12/71 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-29 03:53:12,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 73 transitions, 160 flow [2023-11-29 03:53:12,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 69 transitions, 147 flow [2023-11-29 03:53:12,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:53:12,890 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;@3ebc4256, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:53:12,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-29 03:53:12,901 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:53:12,902 INFO L124 PetriNetUnfolderBase]: 6/35 cut-off events. [2023-11-29 03:53:12,902 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:53:12,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:12,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:12,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:12,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash 609172202, now seen corresponding path program 1 times [2023-11-29 03:53:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174598752] [2023-11-29 03:53:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:12,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:13,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:13,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:13,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174598752] [2023-11-29 03:53:13,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174598752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:13,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:13,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:13,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337079421] [2023-11-29 03:53:13,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:13,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:13,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:13,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2023-11-29 03:53:13,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 69 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:53:13,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:13,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2023-11-29 03:53:13,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:13,582 INFO L124 PetriNetUnfolderBase]: 788/1555 cut-off events. [2023-11-29 03:53:13,582 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-29 03:53:13,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 1555 events. 788/1555 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 10730 event pairs, 292 based on Foata normal form. 48/1268 useless extension candidates. Maximal degree in co-relation 2685. Up to 671 conditions per place. [2023-11-29 03:53:13,619 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 61 selfloop transitions, 5 changer transitions 0/100 dead transitions. [2023-11-29 03:53:13,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 100 transitions, 347 flow [2023-11-29 03:53:13,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 213 transitions. [2023-11-29 03:53:13,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7294520547945206 [2023-11-29 03:53:13,634 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 213 transitions. [2023-11-29 03:53:13,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 213 transitions. [2023-11-29 03:53:13,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:13,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 213 transitions. [2023-11-29 03:53:13,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2023-11-29 03:53:13,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:13,647 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:13,648 INFO L175 Difference]: Start difference. First operand has 64 places, 69 transitions, 147 flow. Second operand 4 states and 213 transitions. [2023-11-29 03:53:13,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 100 transitions, 347 flow [2023-11-29 03:53:13,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 100 transitions, 340 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 03:53:13,657 INFO L231 Difference]: Finished difference. Result has 66 places, 71 transitions, 176 flow [2023-11-29 03:53:13,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=66, PETRI_TRANSITIONS=71} [2023-11-29 03:53:13,663 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 2 predicate places. [2023-11-29 03:53:13,663 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 176 flow [2023-11-29 03:53:13,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:53:13,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:13,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:13,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:53:13,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:13,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1704469686, now seen corresponding path program 1 times [2023-11-29 03:53:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:13,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796878974] [2023-11-29 03:53:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:13,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:13,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:13,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:13,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796878974] [2023-11-29 03:53:13,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796878974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:13,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:13,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:53:13,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22400949] [2023-11-29 03:53:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:13,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:13,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:13,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:13,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 73 [2023-11-29 03:53:13,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:53:13,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:13,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 73 [2023-11-29 03:53:13,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:13,995 INFO L124 PetriNetUnfolderBase]: 604/1372 cut-off events. [2023-11-29 03:53:13,995 INFO L125 PetriNetUnfolderBase]: For 307/309 co-relation queries the response was YES. [2023-11-29 03:53:13,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2641 conditions, 1372 events. 604/1372 cut-off events. For 307/309 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9942 event pairs, 187 based on Foata normal form. 2/1162 useless extension candidates. Maximal degree in co-relation 1872. Up to 469 conditions per place. [2023-11-29 03:53:14,005 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 42 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2023-11-29 03:53:14,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 84 transitions, 296 flow [2023-11-29 03:53:14,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2023-11-29 03:53:14,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6883561643835616 [2023-11-29 03:53:14,008 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 201 transitions. [2023-11-29 03:53:14,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 201 transitions. [2023-11-29 03:53:14,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:14,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 201 transitions. [2023-11-29 03:53:14,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2023-11-29 03:53:14,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,013 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,013 INFO L175 Difference]: Start difference. First operand has 66 places, 71 transitions, 176 flow. Second operand 4 states and 201 transitions. [2023-11-29 03:53:14,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 84 transitions, 296 flow [2023-11-29 03:53:14,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:53:14,019 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 182 flow [2023-11-29 03:53:14,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2023-11-29 03:53:14,020 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2023-11-29 03:53:14,020 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 182 flow [2023-11-29 03:53:14,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:53:14,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:14,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:14,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:53:14,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:14,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:14,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1298921550, now seen corresponding path program 1 times [2023-11-29 03:53:14,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:14,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279674434] [2023-11-29 03:53:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:14,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:14,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:14,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:14,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279674434] [2023-11-29 03:53:14,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279674434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:14,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:14,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:53:14,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071144919] [2023-11-29 03:53:14,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:14,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:14,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:14,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:14,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:14,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2023-11-29 03:53:14,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2023-11-29 03:53:14,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:14,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2023-11-29 03:53:14,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:14,317 INFO L124 PetriNetUnfolderBase]: 606/1352 cut-off events. [2023-11-29 03:53:14,317 INFO L125 PetriNetUnfolderBase]: For 567/569 co-relation queries the response was YES. [2023-11-29 03:53:14,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2699 conditions, 1352 events. 606/1352 cut-off events. For 567/569 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9693 event pairs, 187 based on Foata normal form. 26/1166 useless extension candidates. Maximal degree in co-relation 1924. Up to 493 conditions per place. [2023-11-29 03:53:14,326 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 43 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2023-11-29 03:53:14,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 83 transitions, 302 flow [2023-11-29 03:53:14,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:14,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:14,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2023-11-29 03:53:14,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6746575342465754 [2023-11-29 03:53:14,328 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 197 transitions. [2023-11-29 03:53:14,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 197 transitions. [2023-11-29 03:53:14,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:14,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 197 transitions. [2023-11-29 03:53:14,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2023-11-29 03:53:14,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,331 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,332 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 182 flow. Second operand 4 states and 197 transitions. [2023-11-29 03:53:14,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 83 transitions, 302 flow [2023-11-29 03:53:14,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 294 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 03:53:14,337 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 178 flow [2023-11-29 03:53:14,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2023-11-29 03:53:14,338 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 3 predicate places. [2023-11-29 03:53:14,338 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 178 flow [2023-11-29 03:53:14,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2023-11-29 03:53:14,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:14,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:14,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:53:14,339 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:14,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:14,340 INFO L85 PathProgramCache]: Analyzing trace with hash 448322131, now seen corresponding path program 1 times [2023-11-29 03:53:14,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:14,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126430908] [2023-11-29 03:53:14,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:14,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:14,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126430908] [2023-11-29 03:53:14,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126430908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:14,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100722545] [2023-11-29 03:53:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:14,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:14,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:14,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:14,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2023-11-29 03:53:14,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-29 03:53:14,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:14,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2023-11-29 03:53:14,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:14,695 INFO L124 PetriNetUnfolderBase]: 935/1911 cut-off events. [2023-11-29 03:53:14,695 INFO L125 PetriNetUnfolderBase]: For 755/790 co-relation queries the response was YES. [2023-11-29 03:53:14,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3838 conditions, 1911 events. 935/1911 cut-off events. For 755/790 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13836 event pairs, 365 based on Foata normal form. 91/1646 useless extension candidates. Maximal degree in co-relation 2299. Up to 810 conditions per place. [2023-11-29 03:53:14,707 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 67 selfloop transitions, 5 changer transitions 0/104 dead transitions. [2023-11-29 03:53:14,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 104 transitions, 442 flow [2023-11-29 03:53:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:14,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:14,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 213 transitions. [2023-11-29 03:53:14,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7294520547945206 [2023-11-29 03:53:14,709 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 213 transitions. [2023-11-29 03:53:14,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 213 transitions. [2023-11-29 03:53:14,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:14,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 213 transitions. [2023-11-29 03:53:14,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2023-11-29 03:53:14,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,713 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:14,713 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 178 flow. Second operand 4 states and 213 transitions. [2023-11-29 03:53:14,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 104 transitions, 442 flow [2023-11-29 03:53:14,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 104 transitions, 422 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 03:53:14,720 INFO L231 Difference]: Finished difference. Result has 69 places, 71 transitions, 204 flow [2023-11-29 03:53:14,720 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2023-11-29 03:53:14,721 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2023-11-29 03:53:14,722 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 204 flow [2023-11-29 03:53:14,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-29 03:53:14,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:14,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:14,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:53:14,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:14,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:14,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1611861976, now seen corresponding path program 1 times [2023-11-29 03:53:14,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:14,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330212268] [2023-11-29 03:53:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:14,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:14,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330212268] [2023-11-29 03:53:14,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330212268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:14,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:14,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:14,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893775605] [2023-11-29 03:53:14,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:14,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:14,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:14,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:14,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:53:14,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 73 [2023-11-29 03:53:14,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 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) [2023-11-29 03:53:14,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:14,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 73 [2023-11-29 03:53:14,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:15,112 INFO L124 PetriNetUnfolderBase]: 937/1864 cut-off events. [2023-11-29 03:53:15,112 INFO L125 PetriNetUnfolderBase]: For 655/708 co-relation queries the response was YES. [2023-11-29 03:53:15,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4092 conditions, 1864 events. 937/1864 cut-off events. For 655/708 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 13302 event pairs, 223 based on Foata normal form. 27/1717 useless extension candidates. Maximal degree in co-relation 2966. Up to 685 conditions per place. [2023-11-29 03:53:15,125 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 63 selfloop transitions, 6 changer transitions 0/102 dead transitions. [2023-11-29 03:53:15,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 102 transitions, 444 flow [2023-11-29 03:53:15,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:53:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 03:53:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 248 transitions. [2023-11-29 03:53:15,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6794520547945205 [2023-11-29 03:53:15,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 248 transitions. [2023-11-29 03:53:15,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 248 transitions. [2023-11-29 03:53:15,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:15,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 248 transitions. [2023-11-29 03:53:15,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-29 03:53:15,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 03:53:15,129 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 03:53:15,129 INFO L175 Difference]: Start difference. First operand has 69 places, 71 transitions, 204 flow. Second operand 5 states and 248 transitions. [2023-11-29 03:53:15,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 102 transitions, 444 flow [2023-11-29 03:53:15,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 102 transitions, 444 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:53:15,134 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 214 flow [2023-11-29 03:53:15,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2023-11-29 03:53:15,135 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 8 predicate places. [2023-11-29 03:53:15,136 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 214 flow [2023-11-29 03:53:15,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 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) [2023-11-29 03:53:15,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:15,136 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:15,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:53:15,137 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:15,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:15,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1611863001, now seen corresponding path program 1 times [2023-11-29 03:53:15,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:15,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526973704] [2023-11-29 03:53:15,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:15,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:15,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:15,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526973704] [2023-11-29 03:53:15,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526973704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:15,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:15,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63249655] [2023-11-29 03:53:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:15,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:15,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:15,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:15,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2023-11-29 03:53:15,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-11-29 03:53:15,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:15,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2023-11-29 03:53:15,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:15,435 INFO L124 PetriNetUnfolderBase]: 776/1748 cut-off events. [2023-11-29 03:53:15,435 INFO L125 PetriNetUnfolderBase]: For 1052/1087 co-relation queries the response was YES. [2023-11-29 03:53:15,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3790 conditions, 1748 events. 776/1748 cut-off events. For 1052/1087 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 13020 event pairs, 375 based on Foata normal form. 47/1578 useless extension candidates. Maximal degree in co-relation 2373. Up to 799 conditions per place. [2023-11-29 03:53:15,446 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 65 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2023-11-29 03:53:15,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 102 transitions, 452 flow [2023-11-29 03:53:15,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-11-29 03:53:15,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7123287671232876 [2023-11-29 03:53:15,449 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 208 transitions. [2023-11-29 03:53:15,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 208 transitions. [2023-11-29 03:53:15,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:15,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 208 transitions. [2023-11-29 03:53:15,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-29 03:53:15,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:15,450 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:15,451 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 214 flow. Second operand 4 states and 208 transitions. [2023-11-29 03:53:15,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 102 transitions, 452 flow [2023-11-29 03:53:15,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 102 transitions, 440 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 03:53:15,455 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 204 flow [2023-11-29 03:53:15,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2023-11-29 03:53:15,456 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2023-11-29 03:53:15,456 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 204 flow [2023-11-29 03:53:15,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2023-11-29 03:53:15,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:15,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:15,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:53:15,457 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:15,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:15,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1013084812, now seen corresponding path program 1 times [2023-11-29 03:53:15,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697704044] [2023-11-29 03:53:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:15,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:15,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697704044] [2023-11-29 03:53:15,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697704044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:15,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:15,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:53:15,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425014034] [2023-11-29 03:53:15,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:15,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:15,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:15,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 73 [2023-11-29 03:53:15,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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) [2023-11-29 03:53:15,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:15,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 73 [2023-11-29 03:53:15,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:15,754 INFO L124 PetriNetUnfolderBase]: 732/1706 cut-off events. [2023-11-29 03:53:15,754 INFO L125 PetriNetUnfolderBase]: For 846/872 co-relation queries the response was YES. [2023-11-29 03:53:15,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3547 conditions, 1706 events. 732/1706 cut-off events. For 846/872 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 12930 event pairs, 230 based on Foata normal form. 26/1513 useless extension candidates. Maximal degree in co-relation 2243. Up to 539 conditions per place. [2023-11-29 03:53:15,769 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 46 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2023-11-29 03:53:15,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 84 transitions, 358 flow [2023-11-29 03:53:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2023-11-29 03:53:15,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6883561643835616 [2023-11-29 03:53:15,771 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 201 transitions. [2023-11-29 03:53:15,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 201 transitions. [2023-11-29 03:53:15,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:15,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 201 transitions. [2023-11-29 03:53:15,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 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) [2023-11-29 03:53:15,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:15,773 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:15,774 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 204 flow. Second operand 4 states and 201 transitions. [2023-11-29 03:53:15,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 84 transitions, 358 flow [2023-11-29 03:53:15,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:53:15,780 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 204 flow [2023-11-29 03:53:15,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2023-11-29 03:53:15,781 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2023-11-29 03:53:15,782 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 204 flow [2023-11-29 03:53:15,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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) [2023-11-29 03:53:15,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:15,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:15,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:53:15,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:15,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:15,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1571885679, now seen corresponding path program 1 times [2023-11-29 03:53:15,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:15,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143505996] [2023-11-29 03:53:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:15,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:15,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143505996] [2023-11-29 03:53:15,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143505996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:15,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:15,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:53:15,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393444681] [2023-11-29 03:53:15,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:15,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:53:15,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:53:15,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:53:15,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 73 [2023-11-29 03:53:15,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 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) [2023-11-29 03:53:15,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:15,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 73 [2023-11-29 03:53:15,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:16,271 INFO L124 PetriNetUnfolderBase]: 909/1800 cut-off events. [2023-11-29 03:53:16,271 INFO L125 PetriNetUnfolderBase]: For 1128/1182 co-relation queries the response was YES. [2023-11-29 03:53:16,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4083 conditions, 1800 events. 909/1800 cut-off events. For 1128/1182 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 12804 event pairs, 222 based on Foata normal form. 84/1710 useless extension candidates. Maximal degree in co-relation 2932. Up to 509 conditions per place. [2023-11-29 03:53:16,287 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 76 selfloop transitions, 9 changer transitions 0/116 dead transitions. [2023-11-29 03:53:16,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 548 flow [2023-11-29 03:53:16,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:53:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:53:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 280 transitions. [2023-11-29 03:53:16,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.639269406392694 [2023-11-29 03:53:16,289 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 280 transitions. [2023-11-29 03:53:16,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 280 transitions. [2023-11-29 03:53:16,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:16,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 280 transitions. [2023-11-29 03:53:16,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 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) [2023-11-29 03:53:16,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:16,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:16,293 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 204 flow. Second operand 6 states and 280 transitions. [2023-11-29 03:53:16,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 548 flow [2023-11-29 03:53:16,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 116 transitions, 522 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 03:53:16,298 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 221 flow [2023-11-29 03:53:16,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2023-11-29 03:53:16,299 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 9 predicate places. [2023-11-29 03:53:16,299 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 221 flow [2023-11-29 03:53:16,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 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) [2023-11-29 03:53:16,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:16,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:16,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:53:16,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:16,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1340826967, now seen corresponding path program 1 times [2023-11-29 03:53:16,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:16,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669953148] [2023-11-29 03:53:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:16,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:16,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:16,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669953148] [2023-11-29 03:53:16,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669953148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:16,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:16,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:53:16,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316325869] [2023-11-29 03:53:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:16,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:16,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 73 [2023-11-29 03:53:16,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2023-11-29 03:53:16,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:16,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 73 [2023-11-29 03:53:16,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:16,597 INFO L124 PetriNetUnfolderBase]: 733/1665 cut-off events. [2023-11-29 03:53:16,597 INFO L125 PetriNetUnfolderBase]: For 1541/1621 co-relation queries the response was YES. [2023-11-29 03:53:16,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3736 conditions, 1665 events. 733/1665 cut-off events. For 1541/1621 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12345 event pairs, 231 based on Foata normal form. 94/1555 useless extension candidates. Maximal degree in co-relation 2281. Up to 567 conditions per place. [2023-11-29 03:53:16,611 INFO L140 encePairwiseOnDemand]: 69/73 looper letters, 49 selfloop transitions, 4 changer transitions 0/84 dead transitions. [2023-11-29 03:53:16,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 84 transitions, 393 flow [2023-11-29 03:53:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2023-11-29 03:53:16,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6746575342465754 [2023-11-29 03:53:16,613 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 197 transitions. [2023-11-29 03:53:16,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 197 transitions. [2023-11-29 03:53:16,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:16,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 197 transitions. [2023-11-29 03:53:16,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2023-11-29 03:53:16,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:16,616 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:16,616 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 221 flow. Second operand 4 states and 197 transitions. [2023-11-29 03:53:16,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 84 transitions, 393 flow [2023-11-29 03:53:16,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 371 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 03:53:16,621 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 212 flow [2023-11-29 03:53:16,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2023-11-29 03:53:16,622 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2023-11-29 03:53:16,622 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 212 flow [2023-11-29 03:53:16,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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) [2023-11-29 03:53:16,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:16,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:16,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:53:16,623 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:16,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -536498082, now seen corresponding path program 1 times [2023-11-29 03:53:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:16,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79403780] [2023-11-29 03:53:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:16,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79403780] [2023-11-29 03:53:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79403780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140898411] [2023-11-29 03:53:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:16,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:16,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:16,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2023-11-29 03:53:16,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-29 03:53:16,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:16,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2023-11-29 03:53:16,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:16,958 INFO L124 PetriNetUnfolderBase]: 914/1810 cut-off events. [2023-11-29 03:53:16,958 INFO L125 PetriNetUnfolderBase]: For 1474/1520 co-relation queries the response was YES. [2023-11-29 03:53:16,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4212 conditions, 1810 events. 914/1810 cut-off events. For 1474/1520 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12747 event pairs, 372 based on Foata normal form. 74/1680 useless extension candidates. Maximal degree in co-relation 2598. Up to 821 conditions per place. [2023-11-29 03:53:16,969 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 64 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2023-11-29 03:53:16,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 99 transitions, 465 flow [2023-11-29 03:53:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:16,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2023-11-29 03:53:16,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7054794520547946 [2023-11-29 03:53:16,972 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 206 transitions. [2023-11-29 03:53:16,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 206 transitions. [2023-11-29 03:53:16,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:16,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 206 transitions. [2023-11-29 03:53:16,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 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) [2023-11-29 03:53:16,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:16,975 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:16,975 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 212 flow. Second operand 4 states and 206 transitions. [2023-11-29 03:53:16,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 99 transitions, 465 flow [2023-11-29 03:53:16,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 442 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 03:53:16,979 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 214 flow [2023-11-29 03:53:16,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2023-11-29 03:53:16,980 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 6 predicate places. [2023-11-29 03:53:16,980 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 214 flow [2023-11-29 03:53:16,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-29 03:53:16,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:16,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:16,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:53:16,981 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:16,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:16,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1384037362, now seen corresponding path program 1 times [2023-11-29 03:53:16,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:16,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414009458] [2023-11-29 03:53:16,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:16,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:17,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:17,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414009458] [2023-11-29 03:53:17,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414009458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:17,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:17,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:17,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591403005] [2023-11-29 03:53:17,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:17,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:17,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:53:17,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 73 [2023-11-29 03:53:17,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2023-11-29 03:53:17,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:17,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 73 [2023-11-29 03:53:17,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:17,430 INFO L124 PetriNetUnfolderBase]: 1020/1950 cut-off events. [2023-11-29 03:53:17,430 INFO L125 PetriNetUnfolderBase]: For 1666/1762 co-relation queries the response was YES. [2023-11-29 03:53:17,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4728 conditions, 1950 events. 1020/1950 cut-off events. For 1666/1762 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13321 event pairs, 249 based on Foata normal form. 96/1886 useless extension candidates. Maximal degree in co-relation 3746. Up to 732 conditions per place. [2023-11-29 03:53:17,442 INFO L140 encePairwiseOnDemand]: 67/73 looper letters, 69 selfloop transitions, 6 changer transitions 0/102 dead transitions. [2023-11-29 03:53:17,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 510 flow [2023-11-29 03:53:17,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:53:17,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 03:53:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 248 transitions. [2023-11-29 03:53:17,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6794520547945205 [2023-11-29 03:53:17,444 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 248 transitions. [2023-11-29 03:53:17,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 248 transitions. [2023-11-29 03:53:17,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:17,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 248 transitions. [2023-11-29 03:53:17,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 49.6) internal successors, (248), 5 states have internal predecessors, (248), 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) [2023-11-29 03:53:17,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 03:53:17,447 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2023-11-29 03:53:17,447 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 214 flow. Second operand 5 states and 248 transitions. [2023-11-29 03:53:17,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 510 flow [2023-11-29 03:53:17,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 102 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:53:17,452 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 220 flow [2023-11-29 03:53:17,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-11-29 03:53:17,453 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 8 predicate places. [2023-11-29 03:53:17,453 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 220 flow [2023-11-29 03:53:17,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2023-11-29 03:53:17,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:17,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:17,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:53:17,454 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:17,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1384036337, now seen corresponding path program 1 times [2023-11-29 03:53:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:17,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095988137] [2023-11-29 03:53:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:17,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:17,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:17,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095988137] [2023-11-29 03:53:17,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095988137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:17,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:17,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:53:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283289113] [2023-11-29 03:53:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:17,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:53:17,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:17,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:53:17,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:53:17,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 73 [2023-11-29 03:53:17,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-29 03:53:17,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:17,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 73 [2023-11-29 03:53:17,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:17,782 INFO L124 PetriNetUnfolderBase]: 846/1786 cut-off events. [2023-11-29 03:53:17,782 INFO L125 PetriNetUnfolderBase]: For 1661/1737 co-relation queries the response was YES. [2023-11-29 03:53:17,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4209 conditions, 1786 events. 846/1786 cut-off events. For 1661/1737 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12851 event pairs, 417 based on Foata normal form. 106/1732 useless extension candidates. Maximal degree in co-relation 3357. Up to 873 conditions per place. [2023-11-29 03:53:17,792 INFO L140 encePairwiseOnDemand]: 68/73 looper letters, 71 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2023-11-29 03:53:17,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 102 transitions, 506 flow [2023-11-29 03:53:17,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:53:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 03:53:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2023-11-29 03:53:17,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7123287671232876 [2023-11-29 03:53:17,794 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 208 transitions. [2023-11-29 03:53:17,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 208 transitions. [2023-11-29 03:53:17,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:17,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 208 transitions. [2023-11-29 03:53:17,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2023-11-29 03:53:17,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:17,796 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 73.0) internal successors, (365), 5 states have internal predecessors, (365), 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) [2023-11-29 03:53:17,796 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 220 flow. Second operand 4 states and 208 transitions. [2023-11-29 03:53:17,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 102 transitions, 506 flow [2023-11-29 03:53:17,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 102 transitions, 494 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 03:53:17,801 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 210 flow [2023-11-29 03:53:17,802 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2023-11-29 03:53:17,802 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 7 predicate places. [2023-11-29 03:53:17,802 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 210 flow [2023-11-29 03:53:17,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-29 03:53:17,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:17,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:17,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:53:17,803 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:17,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash 44515386, now seen corresponding path program 1 times [2023-11-29 03:53:17,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:17,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354193438] [2023-11-29 03:53:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:17,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:17,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354193438] [2023-11-29 03:53:17,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354193438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:17,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:17,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:53:17,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611402868] [2023-11-29 03:53:17,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:17,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:53:17,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:17,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:53:17,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:53:17,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 73 [2023-11-29 03:53:17,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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) [2023-11-29 03:53:17,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:17,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 73 [2023-11-29 03:53:17,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:18,266 INFO L124 PetriNetUnfolderBase]: 990/1890 cut-off events. [2023-11-29 03:53:18,266 INFO L125 PetriNetUnfolderBase]: For 1635/1731 co-relation queries the response was YES. [2023-11-29 03:53:18,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4583 conditions, 1890 events. 990/1890 cut-off events. For 1635/1731 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12870 event pairs, 249 based on Foata normal form. 156/1886 useless extension candidates. Maximal degree in co-relation 3644. Up to 560 conditions per place. [2023-11-29 03:53:18,276 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 84 selfloop transitions, 9 changer transitions 0/119 dead transitions. [2023-11-29 03:53:18,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 119 transitions, 606 flow [2023-11-29 03:53:18,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:53:18,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:53:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 280 transitions. [2023-11-29 03:53:18,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.639269406392694 [2023-11-29 03:53:18,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 280 transitions. [2023-11-29 03:53:18,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 280 transitions. [2023-11-29 03:53:18,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:18,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 280 transitions. [2023-11-29 03:53:18,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 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) [2023-11-29 03:53:18,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:18,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:18,282 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 210 flow. Second operand 6 states and 280 transitions. [2023-11-29 03:53:18,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 119 transitions, 606 flow [2023-11-29 03:53:18,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 119 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:53:18,287 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 229 flow [2023-11-29 03:53:18,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=229, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2023-11-29 03:53:18,288 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 10 predicate places. [2023-11-29 03:53:18,288 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 229 flow [2023-11-29 03:53:18,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 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) [2023-11-29 03:53:18,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:53:18,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:18,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:53:18,288 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-29 03:53:18,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:53:18,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1967672588, now seen corresponding path program 1 times [2023-11-29 03:53:18,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:53:18,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162474423] [2023-11-29 03:53:18,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:53:18,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:53:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:53:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:53:18,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:53:18,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162474423] [2023-11-29 03:53:18,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162474423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:53:18,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:53:18,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:53:18,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881376220] [2023-11-29 03:53:18,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:53:18,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:53:18,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:53:18,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:53:18,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:53:18,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 73 [2023-11-29 03:53:18,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 229 flow. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2023-11-29 03:53:18,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:53:18,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 73 [2023-11-29 03:53:18,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:53:18,702 INFO L124 PetriNetUnfolderBase]: 990/1812 cut-off events. [2023-11-29 03:53:18,703 INFO L125 PetriNetUnfolderBase]: For 2012/2106 co-relation queries the response was YES. [2023-11-29 03:53:18,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4781 conditions, 1812 events. 990/1812 cut-off events. For 2012/2106 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11938 event pairs, 417 based on Foata normal form. 124/1832 useless extension candidates. Maximal degree in co-relation 3807. Up to 903 conditions per place. [2023-11-29 03:53:18,722 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2023-11-29 03:53:18,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 138 transitions, 739 flow [2023-11-29 03:53:18,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:53:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:53:18,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 299 transitions. [2023-11-29 03:53:18,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.682648401826484 [2023-11-29 03:53:18,724 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 299 transitions. [2023-11-29 03:53:18,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 299 transitions. [2023-11-29 03:53:18,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:53:18,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 299 transitions. [2023-11-29 03:53:18,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 49.833333333333336) internal successors, (299), 6 states have internal predecessors, (299), 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) [2023-11-29 03:53:18,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:18,727 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 73.0) internal successors, (511), 7 states have internal predecessors, (511), 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) [2023-11-29 03:53:18,727 INFO L175 Difference]: Start difference. First operand has 74 places, 65 transitions, 229 flow. Second operand 6 states and 299 transitions. [2023-11-29 03:53:18,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 138 transitions, 739 flow [2023-11-29 03:53:18,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 138 transitions, 721 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-29 03:53:18,734 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2023-11-29 03:53:18,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2023-11-29 03:53:18,735 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, 9 predicate places. [2023-11-29 03:53:18,735 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2023-11-29 03:53:18,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 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) [2023-11-29 03:53:18,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-29 03:53:18,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-29 03:53:18,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-29 03:53:18,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-29 03:53:18,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-29 03:53:18,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-29 03:53:18,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-29 03:53:18,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:53:18,741 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:53:18,747 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 03:53:18,747 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:53:18,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:53:18 BasicIcfg [2023-11-29 03:53:18,752 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:53:18,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:53:18,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:53:18,753 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:53:18,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:53:12" (3/4) ... [2023-11-29 03:53:18,755 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:53:18,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 03:53:18,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 03:53:18,763 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2023-11-29 03:53:18,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-29 03:53:18,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:53:18,764 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 03:53:18,849 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:53:18,850 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:53:18,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:53:18,851 INFO L158 Benchmark]: Toolchain (without parser) took 7090.65ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 112.5MB in the beginning and 161.1MB in the end (delta: -48.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,851 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:53:18,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.20ms. Allocated memory is still 146.8MB. Free memory was 112.5MB in the beginning and 101.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.37ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 99.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,852 INFO L158 Benchmark]: Boogie Preprocessor took 44.22ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,853 INFO L158 Benchmark]: RCFGBuilder took 645.35ms. Allocated memory is still 146.8MB. Free memory was 96.6MB in the beginning and 93.9MB in the end (delta: 2.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,853 INFO L158 Benchmark]: TraceAbstraction took 6028.29ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 93.4MB in the beginning and 166.3MB in the end (delta: -72.9MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,853 INFO L158 Benchmark]: Witness Printer took 97.79ms. Allocated memory is still 211.8MB. Free memory was 166.3MB in the beginning and 161.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:53:18,855 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.20ms. Allocated memory is still 146.8MB. Free memory was 112.5MB in the beginning and 101.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.37ms. Allocated memory is still 146.8MB. Free memory was 101.2MB in the beginning and 99.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.22ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 96.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 645.35ms. Allocated memory is still 146.8MB. Free memory was 96.6MB in the beginning and 93.9MB in the end (delta: 2.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6028.29ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 93.4MB in the beginning and 166.3MB in the end (delta: -72.9MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. * Witness Printer took 97.79ms. Allocated memory is still 211.8MB. Free memory was 166.3MB in the beginning and 161.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 116 locations, 26 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1097 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 893 mSDsluCounter, 148 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 67 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2108 IncrementalHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 67 mSolverCounterUnsat, 69 mSDtfsCounter, 2108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=13, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 03:53:18,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66b69-f35e-4c4c-aa34-26ef79216449/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE