./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/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_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/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_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:29:58,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:29:58,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:29:58,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:29:58,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:29:58,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:29:58,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:29:58,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:29:58,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:29:58,243 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:29:58,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:29:58,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:29:58,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:29:58,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:29:58,246 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:29:58,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:29:58,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:29:58,248 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:29:58,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:29:58,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:29:58,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:29:58,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:29:58,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:29:58,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:29:58,252 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:29:58,252 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:29:58,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:29:58,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:29:58,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:29:58,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:29:58,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:29:58,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:29:58,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:29:58,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:29:58,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:29:58,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:29:58,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:29:58,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:29:58,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:29:58,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:29:58,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:29:58,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:29:58,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:29:58,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:29:58,259 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_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2023-11-29 05:29:58,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:29:58,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:29:58,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:29:58,517 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:29:58,517 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:29:58,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2023-11-29 05:30:01,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:30:01,676 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:30:01,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2023-11-29 05:30:01,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/data/866d760b9/ef37d486f21343bfa13d76c987d9392a/FLAG46f22d7d9 [2023-11-29 05:30:01,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/data/866d760b9/ef37d486f21343bfa13d76c987d9392a [2023-11-29 05:30:01,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:30:01,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:30:01,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:30:01,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:30:01,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:30:01,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:30:01" (1/1) ... [2023-11-29 05:30:01,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69415eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:01, skipping insertion in model container [2023-11-29 05:30:01,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:30:01" (1/1) ... [2023-11-29 05:30:01,743 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:30:01,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:30:01,985 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:30:02,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:30:02,038 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:30:02,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02 WrapperNode [2023-11-29 05:30:02,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:30:02,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:30:02,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:30:02,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:30:02,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,088 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 248 [2023-11-29 05:30:02,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:30:02,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:30:02,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:30:02,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:30:02,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,105 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,126 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-29 05:30:02,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:30:02,154 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:30:02,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:30:02,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:30:02,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (1/1) ... [2023-11-29 05:30:02,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:30:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:30:02,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:30:02,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:30:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:30:02,224 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 05:30:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 05:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 05:30:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 05:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 05:30:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 05:30:02,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:30:02,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:30:02,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:30:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:30:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:30:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:30:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:30:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:30:02,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:30:02,230 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 05:30:02,380 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:30:02,382 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:30:02,824 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:30:03,111 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:30:03,111 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:30:03,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:03 BoogieIcfgContainer [2023-11-29 05:30:03,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:30:03,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:30:03,115 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:30:03,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:30:03,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:30:01" (1/3) ... [2023-11-29 05:30:03,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ca7193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:30:03, skipping insertion in model container [2023-11-29 05:30:03,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:30:02" (2/3) ... [2023-11-29 05:30:03,120 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ca7193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:30:03, skipping insertion in model container [2023-11-29 05:30:03,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:03" (3/3) ... [2023-11-29 05:30:03,121 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2023-11-29 05:30:03,130 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:30:03,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:30:03,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-29 05:30:03,141 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:30:03,229 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 05:30:03,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 109 transitions, 239 flow [2023-11-29 05:30:03,333 INFO L124 PetriNetUnfolderBase]: 18/106 cut-off events. [2023-11-29 05:30:03,333 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 05:30:03,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 106 events. 18/106 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 403 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2023-11-29 05:30:03,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 109 transitions, 239 flow [2023-11-29 05:30:03,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 104 transitions, 223 flow [2023-11-29 05:30:03,360 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:30:03,369 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;@33c24412, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:30:03,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-29 05:30:03,384 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:30:03,384 INFO L124 PetriNetUnfolderBase]: 7/43 cut-off events. [2023-11-29 05:30:03,384 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 05:30:03,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:03,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:03,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:03,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:03,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1161190638, now seen corresponding path program 1 times [2023-11-29 05:30:03,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:03,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947528499] [2023-11-29 05:30:03,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:03,706 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 05:30:03,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:03,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947528499] [2023-11-29 05:30:03,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947528499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:03,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:03,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:03,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603019574] [2023-11-29 05:30:03,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:03,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:03,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:03,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:03,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:03,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 104 transitions, 223 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 05:30:03,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:03,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:03,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:06,386 INFO L124 PetriNetUnfolderBase]: 14358/22917 cut-off events. [2023-11-29 05:30:06,387 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2023-11-29 05:30:06,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42350 conditions, 22917 events. 14358/22917 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 190718 event pairs, 5650 based on Foata normal form. 532/19197 useless extension candidates. Maximal degree in co-relation 40483. Up to 10569 conditions per place. [2023-11-29 05:30:06,616 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 102 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2023-11-29 05:30:06,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 161 transitions, 563 flow [2023-11-29 05:30:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-11-29 05:30:06,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7752293577981652 [2023-11-29 05:30:06,632 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-11-29 05:30:06,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-11-29 05:30:06,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:06,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-11-29 05:30:06,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 05:30:06,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:06,647 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:06,649 INFO L175 Difference]: Start difference. First operand has 96 places, 104 transitions, 223 flow. Second operand 4 states and 338 transitions. [2023-11-29 05:30:06,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 161 transitions, 563 flow [2023-11-29 05:30:06,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 161 transitions, 548 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 05:30:06,668 INFO L231 Difference]: Finished difference. Result has 96 places, 106 transitions, 248 flow [2023-11-29 05:30:06,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=96, PETRI_TRANSITIONS=106} [2023-11-29 05:30:06,673 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2023-11-29 05:30:06,673 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 106 transitions, 248 flow [2023-11-29 05:30:06,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 05:30:06,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:06,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:06,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:30:06,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:06,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1637170611, now seen corresponding path program 1 times [2023-11-29 05:30:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113607705] [2023-11-29 05:30:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:06,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:06,782 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 05:30:06,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:06,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113607705] [2023-11-29 05:30:06,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113607705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:06,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:06,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351297660] [2023-11-29 05:30:06,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:06,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:06,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:06,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 109 [2023-11-29 05:30:06,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 106 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 05:30:06,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:06,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 109 [2023-11-29 05:30:06,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:09,020 INFO L124 PetriNetUnfolderBase]: 10884/19512 cut-off events. [2023-11-29 05:30:09,020 INFO L125 PetriNetUnfolderBase]: For 3433/3455 co-relation queries the response was YES. [2023-11-29 05:30:09,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37710 conditions, 19512 events. 10884/19512 cut-off events. For 3433/3455 co-relation queries the response was YES. Maximal size of possible extension queue 1249. Compared 179413 event pairs, 3597 based on Foata normal form. 22/16791 useless extension candidates. Maximal degree in co-relation 22505. Up to 7399 conditions per place. [2023-11-29 05:30:09,210 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 70 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2023-11-29 05:30:09,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 132 transitions, 451 flow [2023-11-29 05:30:09,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:09,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 313 transitions. [2023-11-29 05:30:09,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7178899082568807 [2023-11-29 05:30:09,214 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 313 transitions. [2023-11-29 05:30:09,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 313 transitions. [2023-11-29 05:30:09,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:09,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 313 transitions. [2023-11-29 05:30:09,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 05:30:09,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:09,219 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:09,219 INFO L175 Difference]: Start difference. First operand has 96 places, 106 transitions, 248 flow. Second operand 4 states and 313 transitions. [2023-11-29 05:30:09,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 132 transitions, 451 flow [2023-11-29 05:30:09,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 132 transitions, 451 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:30:09,381 INFO L231 Difference]: Finished difference. Result has 98 places, 105 transitions, 254 flow [2023-11-29 05:30:09,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=98, PETRI_TRANSITIONS=105} [2023-11-29 05:30:09,383 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 2 predicate places. [2023-11-29 05:30:09,383 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 105 transitions, 254 flow [2023-11-29 05:30:09,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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 05:30:09,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:09,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:09,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:30:09,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:09,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:09,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1914725680, now seen corresponding path program 1 times [2023-11-29 05:30:09,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:09,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189161188] [2023-11-29 05:30:09,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:09,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:30:09,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:09,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189161188] [2023-11-29 05:30:09,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189161188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:09,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:09,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:09,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379120225] [2023-11-29 05:30:09,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:09,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:09,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:09,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:09,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 105 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 05:30:09,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:09,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:09,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:11,921 INFO L124 PetriNetUnfolderBase]: 17140/28688 cut-off events. [2023-11-29 05:30:11,922 INFO L125 PetriNetUnfolderBase]: For 8540/9365 co-relation queries the response was YES. [2023-11-29 05:30:11,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57103 conditions, 28688 events. 17140/28688 cut-off events. For 8540/9365 co-relation queries the response was YES. Maximal size of possible extension queue 1716. Compared 258341 event pairs, 6707 based on Foata normal form. 1081/24885 useless extension candidates. Maximal degree in co-relation 35838. Up to 12380 conditions per place. [2023-11-29 05:30:12,100 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 108 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2023-11-29 05:30:12,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 166 transitions, 656 flow [2023-11-29 05:30:12,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-11-29 05:30:12,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7752293577981652 [2023-11-29 05:30:12,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-11-29 05:30:12,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-11-29 05:30:12,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:12,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-11-29 05:30:12,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 05:30:12,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:12,109 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:12,109 INFO L175 Difference]: Start difference. First operand has 98 places, 105 transitions, 254 flow. Second operand 4 states and 338 transitions. [2023-11-29 05:30:12,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 166 transitions, 656 flow [2023-11-29 05:30:12,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 166 transitions, 636 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:12,240 INFO L231 Difference]: Finished difference. Result has 100 places, 107 transitions, 280 flow [2023-11-29 05:30:12,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=100, PETRI_TRANSITIONS=107} [2023-11-29 05:30:12,241 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2023-11-29 05:30:12,241 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 107 transitions, 280 flow [2023-11-29 05:30:12,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 05:30:12,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:12,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:12,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:30:12,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:12,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:12,243 INFO L85 PathProgramCache]: Analyzing trace with hash 787287638, now seen corresponding path program 1 times [2023-11-29 05:30:12,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:12,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175020773] [2023-11-29 05:30:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:12,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:12,317 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 05:30:12,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:12,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175020773] [2023-11-29 05:30:12,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175020773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:12,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:12,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:12,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115306983] [2023-11-29 05:30:12,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:12,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:12,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:12,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:12,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:12,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 109 [2023-11-29 05:30:12,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 107 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 05:30:12,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:12,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 109 [2023-11-29 05:30:12,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:14,365 INFO L124 PetriNetUnfolderBase]: 12798/23657 cut-off events. [2023-11-29 05:30:14,365 INFO L125 PetriNetUnfolderBase]: For 8963/9604 co-relation queries the response was YES. [2023-11-29 05:30:14,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48326 conditions, 23657 events. 12798/23657 cut-off events. For 8963/9604 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 229259 event pairs, 4309 based on Foata normal form. 648/21230 useless extension candidates. Maximal degree in co-relation 30421. Up to 8977 conditions per place. [2023-11-29 05:30:14,528 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 75 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-29 05:30:14,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 135 transitions, 513 flow [2023-11-29 05:30:14,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2023-11-29 05:30:14,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7087155963302753 [2023-11-29 05:30:14,531 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions. [2023-11-29 05:30:14,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions. [2023-11-29 05:30:14,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:14,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions. [2023-11-29 05:30:14,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 05:30:14,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:14,535 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:14,535 INFO L175 Difference]: Start difference. First operand has 100 places, 107 transitions, 280 flow. Second operand 4 states and 309 transitions. [2023-11-29 05:30:14,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 135 transitions, 513 flow [2023-11-29 05:30:14,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 135 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:30:14,676 INFO L231 Difference]: Finished difference. Result has 102 places, 106 transitions, 284 flow [2023-11-29 05:30:14,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=102, PETRI_TRANSITIONS=106} [2023-11-29 05:30:14,677 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 6 predicate places. [2023-11-29 05:30:14,678 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 106 transitions, 284 flow [2023-11-29 05:30:14,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 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 05:30:14,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:14,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:14,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:30:14,679 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:14,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 773046894, now seen corresponding path program 1 times [2023-11-29 05:30:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:14,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112006462] [2023-11-29 05:30:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:14,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:14,735 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 05:30:14,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:14,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112006462] [2023-11-29 05:30:14,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112006462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:14,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:14,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610363124] [2023-11-29 05:30:14,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:14,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:14,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:14,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:14,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 109 [2023-11-29 05:30:14,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 05:30:14,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:14,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 109 [2023-11-29 05:30:14,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:16,724 INFO L124 PetriNetUnfolderBase]: 12828/24062 cut-off events. [2023-11-29 05:30:16,724 INFO L125 PetriNetUnfolderBase]: For 10547/10873 co-relation queries the response was YES. [2023-11-29 05:30:16,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49735 conditions, 24062 events. 12828/24062 cut-off events. For 10547/10873 co-relation queries the response was YES. Maximal size of possible extension queue 1477. Compared 236910 event pairs, 4066 based on Foata normal form. 326/21275 useless extension candidates. Maximal degree in co-relation 32007. Up to 9147 conditions per place. [2023-11-29 05:30:16,900 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 74 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2023-11-29 05:30:16,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 134 transitions, 523 flow [2023-11-29 05:30:16,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:16,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 313 transitions. [2023-11-29 05:30:16,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7178899082568807 [2023-11-29 05:30:16,902 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 313 transitions. [2023-11-29 05:30:16,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 313 transitions. [2023-11-29 05:30:16,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:16,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 313 transitions. [2023-11-29 05:30:16,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 05:30:16,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:16,906 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:16,907 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 284 flow. Second operand 4 states and 313 transitions. [2023-11-29 05:30:16,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 134 transitions, 523 flow [2023-11-29 05:30:17,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 134 transitions, 509 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:17,184 INFO L231 Difference]: Finished difference. Result has 101 places, 105 transitions, 282 flow [2023-11-29 05:30:17,184 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=101, PETRI_TRANSITIONS=105} [2023-11-29 05:30:17,185 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2023-11-29 05:30:17,185 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 105 transitions, 282 flow [2023-11-29 05:30:17,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 05:30:17,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:17,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:17,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:30:17,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:17,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1363887217, now seen corresponding path program 1 times [2023-11-29 05:30:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:17,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198856837] [2023-11-29 05:30:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:17,285 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 05:30:17,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:17,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198856837] [2023-11-29 05:30:17,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198856837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:17,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:17,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:17,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837133166] [2023-11-29 05:30:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:17,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:30:17,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:17,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:30:17,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:30:17,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 109 [2023-11-29 05:30:17,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 105 transitions, 282 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 05:30:17,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:17,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 109 [2023-11-29 05:30:17,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:19,885 INFO L124 PetriNetUnfolderBase]: 17075/27595 cut-off events. [2023-11-29 05:30:19,885 INFO L125 PetriNetUnfolderBase]: For 11173/12029 co-relation queries the response was YES. [2023-11-29 05:30:19,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60359 conditions, 27595 events. 17075/27595 cut-off events. For 11173/12029 co-relation queries the response was YES. Maximal size of possible extension queue 1677. Compared 239196 event pairs, 4225 based on Foata normal form. 431/25365 useless extension candidates. Maximal degree in co-relation 37461. Up to 10961 conditions per place. [2023-11-29 05:30:20,065 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 104 selfloop transitions, 6 changer transitions 0/162 dead transitions. [2023-11-29 05:30:20,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 162 transitions, 670 flow [2023-11-29 05:30:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:30:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:30:20,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-11-29 05:30:20,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7229357798165138 [2023-11-29 05:30:20,068 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-11-29 05:30:20,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-11-29 05:30:20,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:20,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-11-29 05:30:20,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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 05:30:20,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:30:20,072 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:30:20,072 INFO L175 Difference]: Start difference. First operand has 101 places, 105 transitions, 282 flow. Second operand 5 states and 394 transitions. [2023-11-29 05:30:20,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 162 transitions, 670 flow [2023-11-29 05:30:20,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 162 transitions, 650 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:20,201 INFO L231 Difference]: Finished difference. Result has 101 places, 104 transitions, 284 flow [2023-11-29 05:30:20,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=284, PETRI_PLACES=101, PETRI_TRANSITIONS=104} [2023-11-29 05:30:20,202 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2023-11-29 05:30:20,202 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 104 transitions, 284 flow [2023-11-29 05:30:20,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 05:30:20,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:20,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:20,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:30:20,202 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:20,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1363886192, now seen corresponding path program 1 times [2023-11-29 05:30:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068003725] [2023-11-29 05:30:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:20,257 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 05:30:20,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:20,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068003725] [2023-11-29 05:30:20,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068003725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:20,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:20,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:20,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012126686] [2023-11-29 05:30:20,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:20,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:20,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:20,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:20,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:20,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 104 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:20,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:20,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:20,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:22,611 INFO L124 PetriNetUnfolderBase]: 14120/25088 cut-off events. [2023-11-29 05:30:22,611 INFO L125 PetriNetUnfolderBase]: For 11950/12651 co-relation queries the response was YES. [2023-11-29 05:30:22,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53107 conditions, 25088 events. 14120/25088 cut-off events. For 11950/12651 co-relation queries the response was YES. Maximal size of possible extension queue 1511. Compared 235928 event pairs, 6995 based on Foata normal form. 669/22666 useless extension candidates. Maximal degree in co-relation 33096. Up to 12549 conditions per place. [2023-11-29 05:30:22,794 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 106 selfloop transitions, 4 changer transitions 0/162 dead transitions. [2023-11-29 05:30:22,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 162 transitions, 658 flow [2023-11-29 05:30:22,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-11-29 05:30:22,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7637614678899083 [2023-11-29 05:30:22,797 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-11-29 05:30:22,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-11-29 05:30:22,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:22,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-11-29 05:30:22,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 05:30:22,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:22,802 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:22,802 INFO L175 Difference]: Start difference. First operand has 101 places, 104 transitions, 284 flow. Second operand 4 states and 333 transitions. [2023-11-29 05:30:22,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 162 transitions, 658 flow [2023-11-29 05:30:22,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 162 transitions, 646 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:30:22,931 INFO L231 Difference]: Finished difference. Result has 100 places, 103 transitions, 274 flow [2023-11-29 05:30:22,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=100, PETRI_TRANSITIONS=103} [2023-11-29 05:30:22,932 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 4 predicate places. [2023-11-29 05:30:22,933 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 103 transitions, 274 flow [2023-11-29 05:30:22,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:30:22,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:22,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:22,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 05:30:22,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:22,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1530365447, now seen corresponding path program 1 times [2023-11-29 05:30:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:22,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414894881] [2023-11-29 05:30:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:22,995 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 05:30:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414894881] [2023-11-29 05:30:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414894881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:22,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:22,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:22,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735695394] [2023-11-29 05:30:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:22,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:22,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:22,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:22,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:23,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:23,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 103 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 05:30:23,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:23,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:23,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:25,692 INFO L124 PetriNetUnfolderBase]: 20001/34103 cut-off events. [2023-11-29 05:30:25,692 INFO L125 PetriNetUnfolderBase]: For 14699/16165 co-relation queries the response was YES. [2023-11-29 05:30:25,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71542 conditions, 34103 events. 20001/34103 cut-off events. For 14699/16165 co-relation queries the response was YES. Maximal size of possible extension queue 1903. Compared 319403 event pairs, 8370 based on Foata normal form. 1713/30932 useless extension candidates. Maximal degree in co-relation 46088. Up to 15111 conditions per place. [2023-11-29 05:30:25,951 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 114 selfloop transitions, 5 changer transitions 0/168 dead transitions. [2023-11-29 05:30:25,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 168 transitions, 728 flow [2023-11-29 05:30:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:25,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2023-11-29 05:30:25,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7752293577981652 [2023-11-29 05:30:25,953 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 338 transitions. [2023-11-29 05:30:25,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 338 transitions. [2023-11-29 05:30:25,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:25,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 338 transitions. [2023-11-29 05:30:25,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 05:30:25,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:25,956 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:25,956 INFO L175 Difference]: Start difference. First operand has 100 places, 103 transitions, 274 flow. Second operand 4 states and 338 transitions. [2023-11-29 05:30:25,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 168 transitions, 728 flow [2023-11-29 05:30:26,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 168 transitions, 712 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:30:26,139 INFO L231 Difference]: Finished difference. Result has 103 places, 105 transitions, 302 flow [2023-11-29 05:30:26,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=103, PETRI_TRANSITIONS=105} [2023-11-29 05:30:26,140 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2023-11-29 05:30:26,140 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 105 transitions, 302 flow [2023-11-29 05:30:26,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 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 05:30:26,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:26,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:26,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 05:30:26,142 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:26,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:26,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1805381004, now seen corresponding path program 1 times [2023-11-29 05:30:26,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:26,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924927077] [2023-11-29 05:30:26,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:26,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:26,206 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 05:30:26,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:26,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924927077] [2023-11-29 05:30:26,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924927077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:26,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:26,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:26,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194411358] [2023-11-29 05:30:26,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:26,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:26,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:26,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:26,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:26,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 109 [2023-11-29 05:30:26,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 105 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 05:30:26,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:26,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 109 [2023-11-29 05:30:26,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:28,459 INFO L124 PetriNetUnfolderBase]: 15125/28787 cut-off events. [2023-11-29 05:30:28,459 INFO L125 PetriNetUnfolderBase]: For 15814/16643 co-relation queries the response was YES. [2023-11-29 05:30:28,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61296 conditions, 28787 events. 15125/28787 cut-off events. For 15814/16643 co-relation queries the response was YES. Maximal size of possible extension queue 1670. Compared 293303 event pairs, 4917 based on Foata normal form. 1001/26622 useless extension candidates. Maximal degree in co-relation 40643. Up to 10972 conditions per place. [2023-11-29 05:30:28,679 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 79 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-29 05:30:28,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 135 transitions, 565 flow [2023-11-29 05:30:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2023-11-29 05:30:28,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7087155963302753 [2023-11-29 05:30:28,681 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions. [2023-11-29 05:30:28,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions. [2023-11-29 05:30:28,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:28,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions. [2023-11-29 05:30:28,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 05:30:28,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:28,683 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:28,684 INFO L175 Difference]: Start difference. First operand has 103 places, 105 transitions, 302 flow. Second operand 4 states and 309 transitions. [2023-11-29 05:30:28,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 135 transitions, 565 flow [2023-11-29 05:30:29,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 135 transitions, 565 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:30:29,026 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 306 flow [2023-11-29 05:30:29,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2023-11-29 05:30:29,026 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2023-11-29 05:30:29,027 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 306 flow [2023-11-29 05:30:29,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 05:30:29,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:29,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:29,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 05:30:29,027 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:29,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:29,028 INFO L85 PathProgramCache]: Analyzing trace with hash 669170041, now seen corresponding path program 1 times [2023-11-29 05:30:29,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:29,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054545746] [2023-11-29 05:30:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:29,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:29,124 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 05:30:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:29,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054545746] [2023-11-29 05:30:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054545746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:29,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:30:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247793625] [2023-11-29 05:30:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:29,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:30:29,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:29,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:30:29,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:30:29,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2023-11-29 05:30:29,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 05:30:29,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:29,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2023-11-29 05:30:29,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:32,036 INFO L124 PetriNetUnfolderBase]: 19723/32503 cut-off events. [2023-11-29 05:30:32,036 INFO L125 PetriNetUnfolderBase]: For 21318/22554 co-relation queries the response was YES. [2023-11-29 05:30:32,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75108 conditions, 32503 events. 19723/32503 cut-off events. For 21318/22554 co-relation queries the response was YES. Maximal size of possible extension queue 1896. Compared 294198 event pairs, 5178 based on Foata normal form. 1626/31543 useless extension candidates. Maximal degree in co-relation 49485. Up to 9517 conditions per place. [2023-11-29 05:30:32,282 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 138 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2023-11-29 05:30:32,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 197 transitions, 921 flow [2023-11-29 05:30:32,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:30:32,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:30:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2023-11-29 05:30:32,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7033639143730887 [2023-11-29 05:30:32,285 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 460 transitions. [2023-11-29 05:30:32,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 460 transitions. [2023-11-29 05:30:32,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:32,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 460 transitions. [2023-11-29 05:30:32,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 05:30:32,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:30:32,289 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:30:32,290 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 306 flow. Second operand 6 states and 460 transitions. [2023-11-29 05:30:32,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 197 transitions, 921 flow [2023-11-29 05:30:32,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 197 transitions, 895 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:32,489 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 323 flow [2023-11-29 05:30:32,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2023-11-29 05:30:32,491 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 11 predicate places. [2023-11-29 05:30:32,491 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 323 flow [2023-11-29 05:30:32,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 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 05:30:32,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:32,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:32,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 05:30:32,492 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:32,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash 196689462, now seen corresponding path program 1 times [2023-11-29 05:30:32,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:32,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694285901] [2023-11-29 05:30:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:32,553 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 05:30:32,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:32,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694285901] [2023-11-29 05:30:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694285901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:32,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:32,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672619521] [2023-11-29 05:30:32,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:32,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:32,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:32,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:32,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 109 [2023-11-29 05:30:32,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 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 05:30:32,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:32,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 109 [2023-11-29 05:30:32,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:35,002 INFO L124 PetriNetUnfolderBase]: 15350/29033 cut-off events. [2023-11-29 05:30:35,002 INFO L125 PetriNetUnfolderBase]: For 24525/26028 co-relation queries the response was YES. [2023-11-29 05:30:35,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65344 conditions, 29033 events. 15350/29033 cut-off events. For 24525/26028 co-relation queries the response was YES. Maximal size of possible extension queue 1616. Compared 294172 event pairs, 5332 based on Foata normal form. 1306/27209 useless extension candidates. Maximal degree in co-relation 41889. Up to 9977 conditions per place. [2023-11-29 05:30:35,211 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 80 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-29 05:30:35,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 135 transitions, 608 flow [2023-11-29 05:30:35,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 313 transitions. [2023-11-29 05:30:35,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7178899082568807 [2023-11-29 05:30:35,213 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 313 transitions. [2023-11-29 05:30:35,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 313 transitions. [2023-11-29 05:30:35,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:35,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 313 transitions. [2023-11-29 05:30:35,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 05:30:35,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:35,217 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:35,217 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 323 flow. Second operand 4 states and 313 transitions. [2023-11-29 05:30:35,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 135 transitions, 608 flow [2023-11-29 05:30:35,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 135 transitions, 586 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:30:35,605 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 316 flow [2023-11-29 05:30:35,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2023-11-29 05:30:35,606 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2023-11-29 05:30:35,606 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 316 flow [2023-11-29 05:30:35,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 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 05:30:35,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:35,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:35,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 05:30:35,606 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:35,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash -132236464, now seen corresponding path program 1 times [2023-11-29 05:30:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:35,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460679116] [2023-11-29 05:30:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:35,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:35,701 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 05:30:35,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:35,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460679116] [2023-11-29 05:30:35,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460679116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:35,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:35,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:35,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633100104] [2023-11-29 05:30:35,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:35,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:30:35,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:35,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:30:35,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:30:35,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 109 [2023-11-29 05:30:35,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 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 05:30:35,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:35,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 109 [2023-11-29 05:30:35,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:38,915 INFO L124 PetriNetUnfolderBase]: 20396/33236 cut-off events. [2023-11-29 05:30:38,915 INFO L125 PetriNetUnfolderBase]: For 24578/27032 co-relation queries the response was YES. [2023-11-29 05:30:39,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79405 conditions, 33236 events. 20396/33236 cut-off events. For 24578/27032 co-relation queries the response was YES. Maximal size of possible extension queue 1944. Compared 295976 event pairs, 4874 based on Foata normal form. 1743/32691 useless extension candidates. Maximal degree in co-relation 51911. Up to 13449 conditions per place. [2023-11-29 05:30:39,201 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 113 selfloop transitions, 6 changer transitions 0/166 dead transitions. [2023-11-29 05:30:39,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 166 transitions, 786 flow [2023-11-29 05:30:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:30:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:30:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-11-29 05:30:39,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7229357798165138 [2023-11-29 05:30:39,204 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-11-29 05:30:39,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-11-29 05:30:39,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:39,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-11-29 05:30:39,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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 05:30:39,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:30:39,208 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:30:39,208 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 316 flow. Second operand 5 states and 394 transitions. [2023-11-29 05:30:39,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 166 transitions, 786 flow [2023-11-29 05:30:39,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 166 transitions, 766 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:39,538 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 318 flow [2023-11-29 05:30:39,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2023-11-29 05:30:39,539 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2023-11-29 05:30:39,539 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 318 flow [2023-11-29 05:30:39,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 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 05:30:39,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:39,540 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:39,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 05:30:39,540 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:39,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:39,540 INFO L85 PathProgramCache]: Analyzing trace with hash -132235439, now seen corresponding path program 1 times [2023-11-29 05:30:39,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:39,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036922180] [2023-11-29 05:30:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:39,601 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 05:30:39,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:39,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036922180] [2023-11-29 05:30:39,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036922180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:39,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:39,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:39,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17975256] [2023-11-29 05:30:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:39,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:39,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:39,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:39,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:39,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 05:30:39,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:39,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:39,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:42,731 INFO L124 PetriNetUnfolderBase]: 16832/30374 cut-off events. [2023-11-29 05:30:42,732 INFO L125 PetriNetUnfolderBase]: For 24078/25882 co-relation queries the response was YES. [2023-11-29 05:30:42,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70062 conditions, 30374 events. 16832/30374 cut-off events. For 24078/25882 co-relation queries the response was YES. Maximal size of possible extension queue 1746. Compared 296342 event pairs, 8391 based on Foata normal form. 1749/29280 useless extension candidates. Maximal degree in co-relation 46137. Up to 14739 conditions per place. [2023-11-29 05:30:42,997 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 115 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2023-11-29 05:30:42,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 166 transitions, 774 flow [2023-11-29 05:30:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:42,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-11-29 05:30:42,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7637614678899083 [2023-11-29 05:30:42,999 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-11-29 05:30:42,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-11-29 05:30:43,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:43,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-11-29 05:30:43,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 05:30:43,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:43,004 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:43,004 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 318 flow. Second operand 4 states and 333 transitions. [2023-11-29 05:30:43,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 166 transitions, 774 flow [2023-11-29 05:30:43,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 166 transitions, 762 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 05:30:43,314 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 308 flow [2023-11-29 05:30:43,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2023-11-29 05:30:43,315 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2023-11-29 05:30:43,315 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 308 flow [2023-11-29 05:30:43,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 05:30:43,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:43,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:43,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 05:30:43,316 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:43,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:43,317 INFO L85 PathProgramCache]: Analyzing trace with hash 216752693, now seen corresponding path program 1 times [2023-11-29 05:30:43,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:43,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599640683] [2023-11-29 05:30:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:43,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:43,371 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 05:30:43,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:43,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599640683] [2023-11-29 05:30:43,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599640683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:43,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:43,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:43,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300726351] [2023-11-29 05:30:43,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:43,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:43,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:43,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:43,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:43,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:43,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 05:30:43,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:43,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:43,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:46,095 INFO L124 PetriNetUnfolderBase]: 19731/32817 cut-off events. [2023-11-29 05:30:46,095 INFO L125 PetriNetUnfolderBase]: For 24764/26136 co-relation queries the response was YES. [2023-11-29 05:30:46,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76501 conditions, 32817 events. 19731/32817 cut-off events. For 24764/26136 co-relation queries the response was YES. Maximal size of possible extension queue 1806. Compared 299352 event pairs, 8459 based on Foata normal form. 1520/31439 useless extension candidates. Maximal degree in co-relation 50196. Up to 15238 conditions per place. [2023-11-29 05:30:46,356 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 111 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2023-11-29 05:30:46,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 163 transitions, 751 flow [2023-11-29 05:30:46,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:46,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-11-29 05:30:46,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7591743119266054 [2023-11-29 05:30:46,358 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-11-29 05:30:46,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-11-29 05:30:46,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:46,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-11-29 05:30:46,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 05:30:46,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:46,361 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:46,361 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 308 flow. Second operand 4 states and 331 transitions. [2023-11-29 05:30:46,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 163 transitions, 751 flow [2023-11-29 05:30:46,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 163 transitions, 732 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:46,463 INFO L231 Difference]: Finished difference. Result has 104 places, 101 transitions, 312 flow [2023-11-29 05:30:46,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=104, PETRI_TRANSITIONS=101} [2023-11-29 05:30:46,464 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2023-11-29 05:30:46,464 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 101 transitions, 312 flow [2023-11-29 05:30:46,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 05:30:46,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:46,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:46,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 05:30:46,465 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:46,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:46,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1802375115, now seen corresponding path program 1 times [2023-11-29 05:30:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:46,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971276073] [2023-11-29 05:30:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:46,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:46,515 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 05:30:46,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:46,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971276073] [2023-11-29 05:30:46,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971276073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:46,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:46,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:30:46,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567800312] [2023-11-29 05:30:46,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:46,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:46,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:46,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:46,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:46,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 109 [2023-11-29 05:30:46,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 101 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 05:30:46,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:46,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 109 [2023-11-29 05:30:46,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:49,209 INFO L124 PetriNetUnfolderBase]: 16373/30270 cut-off events. [2023-11-29 05:30:49,210 INFO L125 PetriNetUnfolderBase]: For 26188/27522 co-relation queries the response was YES. [2023-11-29 05:30:49,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68827 conditions, 30270 events. 16373/30270 cut-off events. For 26188/27522 co-relation queries the response was YES. Maximal size of possible extension queue 1646. Compared 300672 event pairs, 5735 based on Foata normal form. 1726/28842 useless extension candidates. Maximal degree in co-relation 56360. Up to 11060 conditions per place. [2023-11-29 05:30:49,407 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 83 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2023-11-29 05:30:49,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 605 flow [2023-11-29 05:30:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:49,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2023-11-29 05:30:49,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7087155963302753 [2023-11-29 05:30:49,409 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 309 transitions. [2023-11-29 05:30:49,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 309 transitions. [2023-11-29 05:30:49,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:49,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 309 transitions. [2023-11-29 05:30:49,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 05:30:49,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:49,411 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:49,411 INFO L175 Difference]: Start difference. First operand has 104 places, 101 transitions, 312 flow. Second operand 4 states and 309 transitions. [2023-11-29 05:30:49,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 605 flow [2023-11-29 05:30:49,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 133 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:30:49,689 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 312 flow [2023-11-29 05:30:49,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2023-11-29 05:30:49,690 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2023-11-29 05:30:49,690 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 312 flow [2023-11-29 05:30:49,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 05:30:49,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:49,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:49,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 05:30:49,691 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:49,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:49,691 INFO L85 PathProgramCache]: Analyzing trace with hash 195637751, now seen corresponding path program 1 times [2023-11-29 05:30:49,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:49,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157963805] [2023-11-29 05:30:49,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:49,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:49,781 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 05:30:49,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:49,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157963805] [2023-11-29 05:30:49,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157963805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:49,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:49,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:30:49,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404570415] [2023-11-29 05:30:49,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:49,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:30:49,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:49,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:30:49,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:30:49,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2023-11-29 05:30:49,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 05:30:49,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:49,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2023-11-29 05:30:49,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:52,885 INFO L124 PetriNetUnfolderBase]: 21378/34526 cut-off events. [2023-11-29 05:30:52,885 INFO L125 PetriNetUnfolderBase]: For 31778/33568 co-relation queries the response was YES. [2023-11-29 05:30:53,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84385 conditions, 34526 events. 21378/34526 cut-off events. For 31778/33568 co-relation queries the response was YES. Maximal size of possible extension queue 1972. Compared 305290 event pairs, 5234 based on Foata normal form. 2626/34693 useless extension candidates. Maximal degree in co-relation 69019. Up to 9618 conditions per place. [2023-11-29 05:30:53,189 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 146 selfloop transitions, 9 changer transitions 0/199 dead transitions. [2023-11-29 05:30:53,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 199 transitions, 1000 flow [2023-11-29 05:30:53,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:30:53,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:30:53,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2023-11-29 05:30:53,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7033639143730887 [2023-11-29 05:30:53,192 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 460 transitions. [2023-11-29 05:30:53,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 460 transitions. [2023-11-29 05:30:53,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:53,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 460 transitions. [2023-11-29 05:30:53,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 05:30:53,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:30:53,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:30:53,195 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 312 flow. Second operand 6 states and 460 transitions. [2023-11-29 05:30:53,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 199 transitions, 1000 flow [2023-11-29 05:30:53,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 199 transitions, 974 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 05:30:53,495 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 329 flow [2023-11-29 05:30:53,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2023-11-29 05:30:53,496 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 11 predicate places. [2023-11-29 05:30:53,496 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 329 flow [2023-11-29 05:30:53,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 05:30:53,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:53,496 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:53,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 05:30:53,497 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:53,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:53,497 INFO L85 PathProgramCache]: Analyzing trace with hash 39054585, now seen corresponding path program 1 times [2023-11-29 05:30:53,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:53,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167435958] [2023-11-29 05:30:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:53,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:53,542 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 05:30:53,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:53,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167435958] [2023-11-29 05:30:53,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167435958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:53,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:53,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285137263] [2023-11-29 05:30:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:30:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:53,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:30:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:30:53,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 109 [2023-11-29 05:30:53,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 05:30:53,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:53,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 109 [2023-11-29 05:30:53,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:30:56,301 INFO L124 PetriNetUnfolderBase]: 18156/32106 cut-off events. [2023-11-29 05:30:56,301 INFO L125 PetriNetUnfolderBase]: For 39427/41878 co-relation queries the response was YES. [2023-11-29 05:30:56,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78022 conditions, 32106 events. 18156/32106 cut-off events. For 39427/41878 co-relation queries the response was YES. Maximal size of possible extension queue 1789. Compared 309760 event pairs, 9389 based on Foata normal form. 2633/31789 useless extension candidates. Maximal degree in co-relation 64139. Up to 16335 conditions per place. [2023-11-29 05:30:56,546 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 121 selfloop transitions, 4 changer transitions 0/168 dead transitions. [2023-11-29 05:30:56,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 168 transitions, 851 flow [2023-11-29 05:30:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:30:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:30:56,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2023-11-29 05:30:56,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7637614678899083 [2023-11-29 05:30:56,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 333 transitions. [2023-11-29 05:30:56,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 333 transitions. [2023-11-29 05:30:56,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:30:56,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 333 transitions. [2023-11-29 05:30:56,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 05:30:56,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:56,551 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 05:30:56,551 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 329 flow. Second operand 4 states and 333 transitions. [2023-11-29 05:30:56,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 168 transitions, 851 flow [2023-11-29 05:30:56,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 168 transitions, 817 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 05:30:56,859 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 315 flow [2023-11-29 05:30:56,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2023-11-29 05:30:56,860 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 9 predicate places. [2023-11-29 05:30:56,860 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 315 flow [2023-11-29 05:30:56,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 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 05:30:56,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:30:56,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:30:56,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 05:30:56,861 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:30:56,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:30:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash 39053560, now seen corresponding path program 1 times [2023-11-29 05:30:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:30:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922445383] [2023-11-29 05:30:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:30:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:30:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:30:56,951 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 05:30:56,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:30:56,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922445383] [2023-11-29 05:30:56,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922445383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:30:56,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:30:56,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:30:56,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609466821] [2023-11-29 05:30:56,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:30:56,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:30:56,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:30:56,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:30:56,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:30:56,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 109 [2023-11-29 05:30:56,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 315 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 05:30:56,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:30:56,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 109 [2023-11-29 05:30:56,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:31:00,068 INFO L124 PetriNetUnfolderBase]: 21384/34308 cut-off events. [2023-11-29 05:31:00,068 INFO L125 PetriNetUnfolderBase]: For 33031/36186 co-relation queries the response was YES. [2023-11-29 05:31:00,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85412 conditions, 34308 events. 21384/34308 cut-off events. For 33031/36186 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 299696 event pairs, 5757 based on Foata normal form. 2795/34937 useless extension candidates. Maximal degree in co-relation 70007. Up to 13604 conditions per place. [2023-11-29 05:31:00,308 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 119 selfloop transitions, 6 changer transitions 0/166 dead transitions. [2023-11-29 05:31:00,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 166 transitions, 821 flow [2023-11-29 05:31:00,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:31:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:31:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 394 transitions. [2023-11-29 05:31:00,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7229357798165138 [2023-11-29 05:31:00,311 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 394 transitions. [2023-11-29 05:31:00,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 394 transitions. [2023-11-29 05:31:00,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:31:00,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 394 transitions. [2023-11-29 05:31:00,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 78.8) internal successors, (394), 5 states have internal predecessors, (394), 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 05:31:00,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:31:00,316 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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 05:31:00,316 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 315 flow. Second operand 5 states and 394 transitions. [2023-11-29 05:31:00,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 166 transitions, 821 flow [2023-11-29 05:31:00,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 166 transitions, 815 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:31:00,575 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 319 flow [2023-11-29 05:31:00,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=319, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2023-11-29 05:31:00,576 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 10 predicate places. [2023-11-29 05:31:00,576 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 319 flow [2023-11-29 05:31:00,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 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 05:31:00,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:31:00,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:00,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 05:31:00,577 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:31:00,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:00,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1577846378, now seen corresponding path program 1 times [2023-11-29 05:31:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:00,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728468515] [2023-11-29 05:31:00,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:00,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:00,647 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 05:31:00,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:00,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728468515] [2023-11-29 05:31:00,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728468515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:00,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:00,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:31:00,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925299681] [2023-11-29 05:31:00,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:00,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:31:00,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:31:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:31:00,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2023-11-29 05:31:00,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 319 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 05:31:00,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:31:00,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2023-11-29 05:31:00,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:31:03,805 INFO L124 PetriNetUnfolderBase]: 21310/33836 cut-off events. [2023-11-29 05:31:03,806 INFO L125 PetriNetUnfolderBase]: For 33587/35318 co-relation queries the response was YES. [2023-11-29 05:31:03,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85823 conditions, 33836 events. 21310/33836 cut-off events. For 33587/35318 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 291027 event pairs, 9018 based on Foata normal form. 2149/33877 useless extension candidates. Maximal degree in co-relation 70181. Up to 16199 conditions per place. [2023-11-29 05:31:04,082 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 183 selfloop transitions, 8 changer transitions 0/231 dead transitions. [2023-11-29 05:31:04,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 231 transitions, 1207 flow [2023-11-29 05:31:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:31:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:31:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-11-29 05:31:04,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7522935779816514 [2023-11-29 05:31:04,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-11-29 05:31:04,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-11-29 05:31:04,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:31:04,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-11-29 05:31:04,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 05:31:04,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:04,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:04,090 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 319 flow. Second operand 6 states and 492 transitions. [2023-11-29 05:31:04,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 231 transitions, 1207 flow [2023-11-29 05:31:04,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 231 transitions, 1169 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-29 05:31:04,803 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 334 flow [2023-11-29 05:31:04,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2023-11-29 05:31:04,804 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 12 predicate places. [2023-11-29 05:31:04,804 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 334 flow [2023-11-29 05:31:04,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 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 05:31:04,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:31:04,804 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:04,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 05:31:04,804 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:31:04,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:04,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1210661230, now seen corresponding path program 1 times [2023-11-29 05:31:04,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:04,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833057058] [2023-11-29 05:31:04,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:04,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:04,901 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 05:31:04,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:04,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833057058] [2023-11-29 05:31:04,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833057058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:04,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:04,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:31:04,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916060959] [2023-11-29 05:31:04,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:04,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:31:04,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:04,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:31:04,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:31:04,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2023-11-29 05:31:04,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 05:31:04,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:31:04,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2023-11-29 05:31:04,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:31:07,940 INFO L124 PetriNetUnfolderBase]: 21384/33334 cut-off events. [2023-11-29 05:31:07,940 INFO L125 PetriNetUnfolderBase]: For 49718/52499 co-relation queries the response was YES. [2023-11-29 05:31:08,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86909 conditions, 33334 events. 21384/33334 cut-off events. For 49718/52499 co-relation queries the response was YES. Maximal size of possible extension queue 1830. Compared 279728 event pairs, 5757 based on Foata normal form. 3565/34719 useless extension candidates. Maximal degree in co-relation 71255. Up to 10462 conditions per place. [2023-11-29 05:31:08,217 INFO L140 encePairwiseOnDemand]: 101/109 looper letters, 154 selfloop transitions, 9 changer transitions 0/204 dead transitions. [2023-11-29 05:31:08,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 204 transitions, 1098 flow [2023-11-29 05:31:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:31:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:31:08,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2023-11-29 05:31:08,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7033639143730887 [2023-11-29 05:31:08,220 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 460 transitions. [2023-11-29 05:31:08,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 460 transitions. [2023-11-29 05:31:08,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:31:08,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 460 transitions. [2023-11-29 05:31:08,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 05:31:08,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:08,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:08,223 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 334 flow. Second operand 6 states and 460 transitions. [2023-11-29 05:31:08,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 204 transitions, 1098 flow [2023-11-29 05:31:08,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 204 transitions, 1046 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-11-29 05:31:08,505 INFO L231 Difference]: Finished difference. Result has 109 places, 99 transitions, 343 flow [2023-11-29 05:31:08,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=109, PETRI_TRANSITIONS=99} [2023-11-29 05:31:08,505 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 13 predicate places. [2023-11-29 05:31:08,505 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 99 transitions, 343 flow [2023-11-29 05:31:08,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 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 05:31:08,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:31:08,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:08,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 05:31:08,506 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 05:31:08,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:31:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash -176889570, now seen corresponding path program 1 times [2023-11-29 05:31:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:31:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686876531] [2023-11-29 05:31:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:31:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:31:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:31:08,562 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 05:31:08,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:31:08,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686876531] [2023-11-29 05:31:08,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686876531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:31:08,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:31:08,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:31:08,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135230185] [2023-11-29 05:31:08,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:31:08,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:31:08,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:31:08,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:31:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:31:08,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 109 [2023-11-29 05:31:08,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 99 transitions, 343 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 05:31:08,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:31:08,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 109 [2023-11-29 05:31:08,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:31:11,622 INFO L124 PetriNetUnfolderBase]: 21384/32324 cut-off events. [2023-11-29 05:31:11,622 INFO L125 PetriNetUnfolderBase]: For 43298/45971 co-relation queries the response was YES. [2023-11-29 05:31:11,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87276 conditions, 32324 events. 21384/32324 cut-off events. For 43298/45971 co-relation queries the response was YES. Maximal size of possible extension queue 1833. Compared 261227 event pairs, 9389 based on Foata normal form. 3065/33932 useless extension candidates. Maximal degree in co-relation 71512. Up to 16727 conditions per place. [2023-11-29 05:31:11,754 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 0 selfloop transitions, 0 changer transitions 240/240 dead transitions. [2023-11-29 05:31:11,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 240 transitions, 1283 flow [2023-11-29 05:31:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:31:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 05:31:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2023-11-29 05:31:11,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7522935779816514 [2023-11-29 05:31:11,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2023-11-29 05:31:11,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2023-11-29 05:31:11,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:31:11,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2023-11-29 05:31:11,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 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 05:31:11,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:11,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 05:31:11,762 INFO L175 Difference]: Start difference. First operand has 109 places, 99 transitions, 343 flow. Second operand 6 states and 492 transitions. [2023-11-29 05:31:11,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 240 transitions, 1283 flow [2023-11-29 05:31:12,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 240 transitions, 1265 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-29 05:31:12,375 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2023-11-29 05:31:12,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2023-11-29 05:31:12,376 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 12 predicate places. [2023-11-29 05:31:12,376 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2023-11-29 05:31:12,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 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 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-11-29 05:31:12,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-11-29 05:31:12,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-11-29 05:31:12,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-11-29 05:31:12,382 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-11-29 05:31:12,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 05:31:12,383 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:31:12,388 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:31:12,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:31:12,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:31:12 BasicIcfg [2023-11-29 05:31:12,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:31:12,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:31:12,394 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:31:12,394 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:31:12,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:30:03" (3/4) ... [2023-11-29 05:31:12,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:31:12,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 05:31:12,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 05:31:12,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-29 05:31:12,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2023-11-29 05:31:12,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-29 05:31:12,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 05:31:12,407 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 05:31:12,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:31:12,490 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:31:12,490 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:31:12,491 INFO L158 Benchmark]: Toolchain (without parser) took 70787.77ms. Allocated memory was 190.8MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 155.4MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-11-29 05:31:12,492 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:31:12,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.78ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 143.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 05:31:12,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.13ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 141.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:31:12,493 INFO L158 Benchmark]: Boogie Preprocessor took 63.40ms. Allocated memory is still 190.8MB. Free memory was 141.3MB in the beginning and 138.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:31:12,493 INFO L158 Benchmark]: RCFGBuilder took 958.29ms. Allocated memory is still 190.8MB. Free memory was 138.6MB in the beginning and 131.9MB in the end (delta: 6.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-29 05:31:12,494 INFO L158 Benchmark]: TraceAbstraction took 69278.45ms. Allocated memory was 190.8MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 130.8MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2023-11-29 05:31:12,494 INFO L158 Benchmark]: Witness Printer took 96.85ms. Allocated memory is still 4.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:31:12,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.78ms. Allocated memory is still 190.8MB. Free memory was 155.4MB in the beginning and 143.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.13ms. Allocated memory is still 190.8MB. Free memory was 143.4MB in the beginning and 141.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.40ms. Allocated memory is still 190.8MB. Free memory was 141.3MB in the beginning and 138.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 958.29ms. Allocated memory is still 190.8MB. Free memory was 138.6MB in the beginning and 131.9MB in the end (delta: 6.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * TraceAbstraction took 69278.45ms. Allocated memory was 190.8MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 130.8MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 96.85ms. Allocated memory is still 4.1GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: 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 7 procedures, 173 locations, 39 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: 69.1s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 67.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2372 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2056 mSDsluCounter, 229 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 107 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4966 IncrementalHoareTripleChecker+Invalid, 5073 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 122 mSDtfsCounter, 4966 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred in iteration=20, InterpolantAutomatonStates: 97, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 285 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 845 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:31:12,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60eb1d6-0e87-4cdb-97d4-eb5e30b083ca/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