./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:46,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:46,214 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:23:46,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:46,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:46,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:46,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:46,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:46,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:46,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:46,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:46,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:46,252 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:46,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:46,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:23:46,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:46,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:23:46,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:46,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:46,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:23:46,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:46,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:23:46,258 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:23:46,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:23:46,260 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:46,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:23:46,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:46,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:46,262 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:46,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:46,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:46,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:46,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:46,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:23:46,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:23:46,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:23:46,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:46,267 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:23:46,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:46,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:46,268 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:46,268 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_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbdf820325bad974beb5f3994ba78abc0ad853157d83dd91eac05e8acb05e8a2 [2023-11-06 22:23:46,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:46,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:46,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:46,599 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:46,599 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:46,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2023-11-06 22:23:49,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:50,008 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:50,009 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2023-11-06 22:23:50,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/data/910cb2942/87eb7ceacb174644a09a87bce4c1a721/FLAG254c3ec96 [2023-11-06 22:23:50,033 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/data/910cb2942/87eb7ceacb174644a09a87bce4c1a721 [2023-11-06 22:23:50,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:50,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:50,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:50,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:50,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:50,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1037ace8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50, skipping insertion in model container [2023-11-06 22:23:50,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:50,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:50,291 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:23:50,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:50,329 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:23:50,330 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:23:50,337 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:23:50,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50 WrapperNode [2023-11-06 22:23:50,338 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:50,339 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:50,339 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:23:50,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:23:50,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,355 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,392 INFO L138 Inliner]: procedures = 23, calls = 40, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 308 [2023-11-06 22:23:50,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:50,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:23:50,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:23:50,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:23:50,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:23:50,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:23:50,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:23:50,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:23:50,441 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (1/1) ... [2023-11-06 22:23:50,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:50,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:50,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:50,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:50,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:23:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:23:50,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:23:50,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:23:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:23:50,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:23:50,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:23:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:23:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:23:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:23:50,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:23:50,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:50,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:23:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:23:50,575 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:23:50,754 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:50,756 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:51,548 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:53,134 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:53,135 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:23:53,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:53 BoogieIcfgContainer [2023-11-06 22:23:53,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:53,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:53,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:53,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:53,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:23:50" (1/3) ... [2023-11-06 22:23:53,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620f9a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:53, skipping insertion in model container [2023-11-06 22:23:53,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:50" (2/3) ... [2023-11-06 22:23:53,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620f9a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:53, skipping insertion in model container [2023-11-06 22:23:53,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:53" (3/3) ... [2023-11-06 22:23:53,156 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2023-11-06 22:23:53,172 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:23:53,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:53,186 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-06 22:23:53,186 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:23:53,683 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:23:53,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 153 transitions, 327 flow [2023-11-06 22:23:53,934 INFO L124 PetriNetUnfolderBase]: 1/150 cut-off events. [2023-11-06 22:23:53,934 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:23:53,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 1/150 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 217 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-11-06 22:23:53,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 153 transitions, 327 flow [2023-11-06 22:23:53,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 126 transitions, 267 flow [2023-11-06 22:23:53,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:23:53,978 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 126 transitions, 267 flow [2023-11-06 22:23:53,981 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 126 transitions, 267 flow [2023-11-06 22:23:53,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 126 transitions, 267 flow [2023-11-06 22:23:54,093 INFO L124 PetriNetUnfolderBase]: 0/126 cut-off events. [2023-11-06 22:23:54,094 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:23:54,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 126 events. 0/126 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 212 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-06 22:23:54,099 INFO L119 LiptonReduction]: Number of co-enabled transitions 2430 [2023-11-06 22:24:12,647 INFO L134 LiptonReduction]: Checked pairs total: 1794 [2023-11-06 22:24:12,647 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-11-06 22:24:12,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:24:12,669 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=LoopsAndPotentialCycles, 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;@2625ba14, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:24:12,670 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-11-06 22:24:12,673 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:24:12,673 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 22:24:12,673 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:24:12,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:12,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:12,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:12,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:12,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1318113, now seen corresponding path program 1 times [2023-11-06 22:24:12,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:12,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061789434] [2023-11-06 22:24:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:12,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:13,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:13,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061789434] [2023-11-06 22:24:13,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061789434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:13,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:13,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633828715] [2023-11-06 22:24:13,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:13,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:24:13,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:24:13,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:24:13,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 229 [2023-11-06 22:24:13,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2023-11-06 22:24:13,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:13,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 229 [2023-11-06 22:24:13,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:18,675 INFO L124 PetriNetUnfolderBase]: 5157/7598 cut-off events. [2023-11-06 22:24:18,675 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2023-11-06 22:24:18,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15533 conditions, 7598 events. 5157/7598 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 45187 event pairs, 5157 based on Foata normal form. 0/2126 useless extension candidates. Maximal degree in co-relation 14216. Up to 7599 conditions per place. [2023-11-06 22:24:18,764 INFO L140 encePairwiseOnDemand]: 217/229 looper letters, 38 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-11-06 22:24:18,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 167 flow [2023-11-06 22:24:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:24:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:24:18,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 262 transitions. [2023-11-06 22:24:18,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5720524017467249 [2023-11-06 22:24:18,787 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 262 transitions. [2023-11-06 22:24:18,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 262 transitions. [2023-11-06 22:24:18,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:18,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 262 transitions. [2023-11-06 22:24:18,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 131.0) internal successors, (262), 2 states have internal predecessors, (262), 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) [2023-11-06 22:24:18,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2023-11-06 22:24:18,806 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2023-11-06 22:24:18,808 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 2 states and 262 transitions. [2023-11-06 22:24:18,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 167 flow [2023-11-06 22:24:18,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:24:18,823 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 82 flow [2023-11-06 22:24:18,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-11-06 22:24:18,830 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-11-06 22:24:18,830 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 82 flow [2023-11-06 22:24:18,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2023-11-06 22:24:18,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:18,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:18,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:24:18,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:18,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1318117, now seen corresponding path program 1 times [2023-11-06 22:24:18,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:18,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361256165] [2023-11-06 22:24:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:18,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:19,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:19,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361256165] [2023-11-06 22:24:19,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361256165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:19,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:19,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:19,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59786111] [2023-11-06 22:24:19,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:19,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:19,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:19,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:19,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:19,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:19,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:19,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:19,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:22,898 INFO L124 PetriNetUnfolderBase]: 4173/6174 cut-off events. [2023-11-06 22:24:22,898 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2023-11-06 22:24:22,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12523 conditions, 6174 events. 4173/6174 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 35761 event pairs, 4173 based on Foata normal form. 0/1792 useless extension candidates. Maximal degree in co-relation 12520. Up to 6174 conditions per place. [2023-11-06 22:24:22,950 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-11-06 22:24:22,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 150 flow [2023-11-06 22:24:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-06 22:24:22,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094614264919942 [2023-11-06 22:24:22,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-06 22:24:22,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-06 22:24:22,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:22,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-06 22:24:22,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2023-11-06 22:24:22,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:22,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:22,960 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 82 flow. Second operand 3 states and 350 transitions. [2023-11-06 22:24:22,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 150 flow [2023-11-06 22:24:22,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:24:22,962 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 80 flow [2023-11-06 22:24:22,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-11-06 22:24:22,963 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-11-06 22:24:22,963 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 80 flow [2023-11-06 22:24:22,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:22,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:22,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:22,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:24:22,965 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:22,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:22,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1318118, now seen corresponding path program 1 times [2023-11-06 22:24:22,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:22,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328690707] [2023-11-06 22:24:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:22,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:23,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:23,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:23,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328690707] [2023-11-06 22:24:23,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328690707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:23,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:23,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:23,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227906759] [2023-11-06 22:24:23,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:23,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:23,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:23,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:23,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:23,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:23,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:23,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:25,635 INFO L124 PetriNetUnfolderBase]: 3293/4898 cut-off events. [2023-11-06 22:24:25,636 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 22:24:25,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9938 conditions, 4898 events. 3293/4898 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 27449 event pairs, 3293 based on Foata normal form. 0/1486 useless extension candidates. Maximal degree in co-relation 9934. Up to 4898 conditions per place. [2023-11-06 22:24:25,668 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-11-06 22:24:25,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 144 flow [2023-11-06 22:24:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:25,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:25,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-11-06 22:24:25,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5065502183406113 [2023-11-06 22:24:25,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-11-06 22:24:25,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-11-06 22:24:25,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:25,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-11-06 22:24:25,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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) [2023-11-06 22:24:25,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:25,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:25,677 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 80 flow. Second operand 3 states and 348 transitions. [2023-11-06 22:24:25,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 144 flow [2023-11-06 22:24:25,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:25,680 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 77 flow [2023-11-06 22:24:25,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-11-06 22:24:25,681 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-11-06 22:24:25,681 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 77 flow [2023-11-06 22:24:25,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:25,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:25,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:25,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:24:25,683 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:25,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1318120, now seen corresponding path program 1 times [2023-11-06 22:24:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:25,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639882533] [2023-11-06 22:24:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:25,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:25,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:25,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639882533] [2023-11-06 22:24:25,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639882533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:25,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:25,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:25,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650297759] [2023-11-06 22:24:25,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:25,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:25,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:25,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:25,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:25,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:25,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:25,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:25,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:25,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:27,678 INFO L124 PetriNetUnfolderBase]: 2615/3912 cut-off events. [2023-11-06 22:24:27,679 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-06 22:24:27,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7950 conditions, 3912 events. 2615/3912 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 21291 event pairs, 2615 based on Foata normal form. 0/1244 useless extension candidates. Maximal degree in co-relation 7946. Up to 3912 conditions per place. [2023-11-06 22:24:27,701 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-11-06 22:24:27,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 137 flow [2023-11-06 22:24:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-11-06 22:24:27,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036390101892285 [2023-11-06 22:24:27,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-11-06 22:24:27,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-11-06 22:24:27,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:27,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-11-06 22:24:27,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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) [2023-11-06 22:24:27,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:27,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:27,709 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 77 flow. Second operand 3 states and 346 transitions. [2023-11-06 22:24:27,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 137 flow [2023-11-06 22:24:27,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:27,712 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 74 flow [2023-11-06 22:24:27,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-11-06 22:24:27,714 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-11-06 22:24:27,715 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 74 flow [2023-11-06 22:24:27,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:27,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:27,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:27,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:24:27,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:27,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1318121, now seen corresponding path program 1 times [2023-11-06 22:24:27,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:27,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606256443] [2023-11-06 22:24:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:27,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:27,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606256443] [2023-11-06 22:24:27,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606256443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:27,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474244543] [2023-11-06 22:24:27,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:27,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:27,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:27,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:27,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:27,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:27,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:27,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:27,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:29,365 INFO L124 PetriNetUnfolderBase]: 2013/3034 cut-off events. [2023-11-06 22:24:29,365 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-06 22:24:29,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6178 conditions, 3034 events. 2013/3034 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 15908 event pairs, 2013 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 6174. Up to 3034 conditions per place. [2023-11-06 22:24:29,379 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-11-06 22:24:29,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 130 flow [2023-11-06 22:24:29,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:29,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2023-11-06 22:24:29,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5007278020378457 [2023-11-06 22:24:29,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2023-11-06 22:24:29,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2023-11-06 22:24:29,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:29,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2023-11-06 22:24:29,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2023-11-06 22:24:29,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:29,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:29,386 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 74 flow. Second operand 3 states and 344 transitions. [2023-11-06 22:24:29,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 130 flow [2023-11-06 22:24:29,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:29,388 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 71 flow [2023-11-06 22:24:29,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-11-06 22:24:29,389 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2023-11-06 22:24:29,389 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 71 flow [2023-11-06 22:24:29,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:29,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:29,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:29,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:24:29,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:29,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:29,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1318123, now seen corresponding path program 1 times [2023-11-06 22:24:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:29,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879257584] [2023-11-06 22:24:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:29,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:29,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:29,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879257584] [2023-11-06 22:24:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879257584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:29,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:29,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595796018] [2023-11-06 22:24:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:29,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:29,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:29,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:29,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:29,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:29,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:29,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:30,509 INFO L124 PetriNetUnfolderBase]: 1471/2240 cut-off events. [2023-11-06 22:24:30,509 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-06 22:24:30,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4564 conditions, 2240 events. 1471/2240 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 11189 event pairs, 1471 based on Foata normal form. 0/810 useless extension candidates. Maximal degree in co-relation 4560. Up to 2240 conditions per place. [2023-11-06 22:24:30,522 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-11-06 22:24:30,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 123 flow [2023-11-06 22:24:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2023-11-06 22:24:30,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4978165938864629 [2023-11-06 22:24:30,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2023-11-06 22:24:30,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2023-11-06 22:24:30,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:30,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2023-11-06 22:24:30,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2023-11-06 22:24:30,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:30,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:30,530 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 71 flow. Second operand 3 states and 342 transitions. [2023-11-06 22:24:30,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 123 flow [2023-11-06 22:24:30,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:30,532 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 68 flow [2023-11-06 22:24:30,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-11-06 22:24:30,533 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -20 predicate places. [2023-11-06 22:24:30,533 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 68 flow [2023-11-06 22:24:30,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:30,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:30,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:30,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:24:30,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:30,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:30,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1318124, now seen corresponding path program 1 times [2023-11-06 22:24:30,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:30,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953760132] [2023-11-06 22:24:30,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:30,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:30,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953760132] [2023-11-06 22:24:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953760132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:30,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:30,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:30,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088670762] [2023-11-06 22:24:30,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:30,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:30,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:30,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:30,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:30,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:30,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:30,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:31,576 INFO L124 PetriNetUnfolderBase]: 1013/1566 cut-off events. [2023-11-06 22:24:31,576 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-11-06 22:24:31,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3194 conditions, 1566 events. 1013/1566 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 7474 event pairs, 1013 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 3190. Up to 1566 conditions per place. [2023-11-06 22:24:31,583 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-11-06 22:24:31,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 116 flow [2023-11-06 22:24:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-11-06 22:24:31,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4949053857350801 [2023-11-06 22:24:31,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-11-06 22:24:31,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-11-06 22:24:31,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:31,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-11-06 22:24:31,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2023-11-06 22:24:31,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:31,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:31,591 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 68 flow. Second operand 3 states and 340 transitions. [2023-11-06 22:24:31,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 116 flow [2023-11-06 22:24:31,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:31,593 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 65 flow [2023-11-06 22:24:31,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-11-06 22:24:31,594 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2023-11-06 22:24:31,594 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 65 flow [2023-11-06 22:24:31,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:31,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:31,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:31,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:24:31,596 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:31,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:31,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1318114, now seen corresponding path program 1 times [2023-11-06 22:24:31,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:31,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743817598] [2023-11-06 22:24:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:31,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:31,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743817598] [2023-11-06 22:24:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743817598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:31,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:31,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:31,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179121087] [2023-11-06 22:24:31,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:31,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:31,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:31,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:31,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:31,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:31,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:31,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:31,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:31,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:32,251 INFO L124 PetriNetUnfolderBase]: 681/1074 cut-off events. [2023-11-06 22:24:32,252 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 22:24:32,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2198 conditions, 1074 events. 681/1074 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 4811 event pairs, 681 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 2194. Up to 1074 conditions per place. [2023-11-06 22:24:32,259 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-11-06 22:24:32,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 24 transitions, 109 flow [2023-11-06 22:24:32,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2023-11-06 22:24:32,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49199417758369723 [2023-11-06 22:24:32,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2023-11-06 22:24:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2023-11-06 22:24:32,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:32,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2023-11-06 22:24:32,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 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) [2023-11-06 22:24:32,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:32,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:32,267 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 65 flow. Second operand 3 states and 338 transitions. [2023-11-06 22:24:32,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 24 transitions, 109 flow [2023-11-06 22:24:32,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:32,269 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 62 flow [2023-11-06 22:24:32,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-11-06 22:24:32,270 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2023-11-06 22:24:32,271 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 62 flow [2023-11-06 22:24:32,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:32,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:32,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:24:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:24:32,272 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:32,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1318115, now seen corresponding path program 1 times [2023-11-06 22:24:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:32,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460901397] [2023-11-06 22:24:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:32,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:32,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:32,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460901397] [2023-11-06 22:24:32,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460901397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:32,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:32,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:32,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289540611] [2023-11-06 22:24:32,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:32,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:32,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:32,327 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:32,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:32,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:32,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:32,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:32,739 INFO L124 PetriNetUnfolderBase]: 405/662 cut-off events. [2023-11-06 22:24:32,740 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-06 22:24:32,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2717 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1358. Up to 662 conditions per place. [2023-11-06 22:24:32,743 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-11-06 22:24:32,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 102 flow [2023-11-06 22:24:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:32,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:32,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2023-11-06 22:24:32,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4890829694323144 [2023-11-06 22:24:32,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 336 transitions. [2023-11-06 22:24:32,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 336 transitions. [2023-11-06 22:24:32,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:32,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 336 transitions. [2023-11-06 22:24:32,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2023-11-06 22:24:32,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:32,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:32,751 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 62 flow. Second operand 3 states and 336 transitions. [2023-11-06 22:24:32,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 22 transitions, 102 flow [2023-11-06 22:24:32,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 22 transitions, 101 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:32,753 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 59 flow [2023-11-06 22:24:32,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2023-11-06 22:24:32,754 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2023-11-06 22:24:32,754 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 59 flow [2023-11-06 22:24:32,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-06 22:24:32,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:32,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:24:32,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:24:32,755 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:32,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:32,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1266852184, now seen corresponding path program 1 times [2023-11-06 22:24:32,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:32,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389724321] [2023-11-06 22:24:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:32,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:32,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:32,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389724321] [2023-11-06 22:24:32,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389724321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:32,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:32,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:32,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799677815] [2023-11-06 22:24:32,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:32,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:32,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:32,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:32,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:32,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:32,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:32,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:32,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:32,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:33,176 INFO L124 PetriNetUnfolderBase]: 277/462 cut-off events. [2023-11-06 22:24:33,177 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-06 22:24:33,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1749 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 955. Up to 462 conditions per place. [2023-11-06 22:24:33,179 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-11-06 22:24:33,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 20 transitions, 95 flow [2023-11-06 22:24:33,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:33,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 334 transitions. [2023-11-06 22:24:33,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4861717612809316 [2023-11-06 22:24:33,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 334 transitions. [2023-11-06 22:24:33,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 334 transitions. [2023-11-06 22:24:33,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:33,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 334 transitions. [2023-11-06 22:24:33,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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) [2023-11-06 22:24:33,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,187 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 59 flow. Second operand 3 states and 334 transitions. [2023-11-06 22:24:33,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 20 transitions, 95 flow [2023-11-06 22:24:33,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 20 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:33,189 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 56 flow [2023-11-06 22:24:33,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-11-06 22:24:33,190 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -24 predicate places. [2023-11-06 22:24:33,190 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 56 flow [2023-11-06 22:24:33,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:33,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:24:33,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:24:33,191 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:33,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:33,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1266852185, now seen corresponding path program 1 times [2023-11-06 22:24:33,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:33,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627069076] [2023-11-06 22:24:33,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:33,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627069076] [2023-11-06 22:24:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627069076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:33,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:33,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436860828] [2023-11-06 22:24:33,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:33,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:33,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:33,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:33,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:33,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:33,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:33,497 INFO L124 PetriNetUnfolderBase]: 173/298 cut-off events. [2023-11-06 22:24:33,498 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:24:33,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1002 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 624. Up to 298 conditions per place. [2023-11-06 22:24:33,499 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-11-06 22:24:33,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 88 flow [2023-11-06 22:24:33,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:33,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:33,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2023-11-06 22:24:33,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48326055312954874 [2023-11-06 22:24:33,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2023-11-06 22:24:33,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2023-11-06 22:24:33,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:33,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2023-11-06 22:24:33,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-11-06 22:24:33,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,507 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,507 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 56 flow. Second operand 3 states and 332 transitions. [2023-11-06 22:24:33,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 88 flow [2023-11-06 22:24:33,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:33,509 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 53 flow [2023-11-06 22:24:33,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-11-06 22:24:33,509 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -25 predicate places. [2023-11-06 22:24:33,510 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 53 flow [2023-11-06 22:24:33,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:33,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:24:33,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:24:33,511 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:33,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1266852178, now seen corresponding path program 1 times [2023-11-06 22:24:33,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:33,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764775806] [2023-11-06 22:24:33,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:33,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:33,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:33,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764775806] [2023-11-06 22:24:33,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764775806] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:33,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:33,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305718022] [2023-11-06 22:24:33,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:33,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:33,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:33,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:33,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:33,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:33,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:33,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:33,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:33,710 INFO L124 PetriNetUnfolderBase]: 93/170 cut-off events. [2023-11-06 22:24:33,711 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:24:33,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 469 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 365. Up to 170 conditions per place. [2023-11-06 22:24:33,712 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-11-06 22:24:33,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 81 flow [2023-11-06 22:24:33,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2023-11-06 22:24:33,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48034934497816595 [2023-11-06 22:24:33,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2023-11-06 22:24:33,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2023-11-06 22:24:33,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:33,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2023-11-06 22:24:33,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2023-11-06 22:24:33,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,720 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 53 flow. Second operand 3 states and 330 transitions. [2023-11-06 22:24:33,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 81 flow [2023-11-06 22:24:33,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:33,722 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 50 flow [2023-11-06 22:24:33,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-11-06 22:24:33,723 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -26 predicate places. [2023-11-06 22:24:33,723 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 50 flow [2023-11-06 22:24:33,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:24:33,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:24:33,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:24:33,724 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-11-06 22:24:33,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1266852179, now seen corresponding path program 1 times [2023-11-06 22:24:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:33,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193408313] [2023-11-06 22:24:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:33,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193408313] [2023-11-06 22:24:33,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193408313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:33,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:33,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:24:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204486973] [2023-11-06 22:24:33,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:33,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:24:33,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:24:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:24:33,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 229 [2023-11-06 22:24:33,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:24:33,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 229 [2023-11-06 22:24:33,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:24:33,890 INFO L124 PetriNetUnfolderBase]: 37/78 cut-off events. [2023-11-06 22:24:33,891 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:24:33,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 178. Up to 78 conditions per place. [2023-11-06 22:24:33,891 INFO L140 encePairwiseOnDemand]: 226/229 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-11-06 22:24:33,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 14 transitions, 74 flow [2023-11-06 22:24:33,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:24:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:24:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2023-11-06 22:24:33,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774381368267831 [2023-11-06 22:24:33,894 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2023-11-06 22:24:33,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2023-11-06 22:24:33,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:24:33,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2023-11-06 22:24:33,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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) [2023-11-06 22:24:33,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 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) [2023-11-06 22:24:33,899 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 50 flow. Second operand 3 states and 328 transitions. [2023-11-06 22:24:33,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 14 transitions, 74 flow [2023-11-06 22:24:33,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 14 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:24:33,901 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-06 22:24:33,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-06 22:24:33,902 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2023-11-06 22:24:33,902 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-06 22:24:33,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2023-11-06 22:24:33,905 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2023-11-06 22:24:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2023-11-06 22:24:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2023-11-06 22:24:33,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2023-11-06 22:24:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2023-11-06 22:24:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2023-11-06 22:24:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2023-11-06 22:24:33,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2023-11-06 22:24:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2023-11-06 22:24:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2023-11-06 22:24:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2023-11-06 22:24:33,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2023-11-06 22:24:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2023-11-06 22:24:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2023-11-06 22:24:33,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2023-11-06 22:24:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2023-11-06 22:24:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2023-11-06 22:24:33,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2023-11-06 22:24:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2023-11-06 22:24:33,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2023-11-06 22:24:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2023-11-06 22:24:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2023-11-06 22:24:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2023-11-06 22:24:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2023-11-06 22:24:33,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2023-11-06 22:24:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2023-11-06 22:24:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2023-11-06 22:24:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2023-11-06 22:24:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2023-11-06 22:24:33,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2023-11-06 22:24:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2023-11-06 22:24:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2023-11-06 22:24:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2023-11-06 22:24:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2023-11-06 22:24:33,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2023-11-06 22:24:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2023-11-06 22:24:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2023-11-06 22:24:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2023-11-06 22:24:33,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2023-11-06 22:24:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2023-11-06 22:24:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2023-11-06 22:24:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2023-11-06 22:24:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2023-11-06 22:24:33,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2023-11-06 22:24:33,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2023-11-06 22:24:33,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2023-11-06 22:24:33,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2023-11-06 22:24:33,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2023-11-06 22:24:33,917 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2023-11-06 22:24:33,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2023-11-06 22:24:33,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2023-11-06 22:24:33,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2023-11-06 22:24:33,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2023-11-06 22:24:33,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2023-11-06 22:24:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2023-11-06 22:24:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2023-11-06 22:24:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2023-11-06 22:24:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2023-11-06 22:24:33,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2023-11-06 22:24:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2023-11-06 22:24:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2023-11-06 22:24:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2023-11-06 22:24:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2023-11-06 22:24:33,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2023-11-06 22:24:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2023-11-06 22:24:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2023-11-06 22:24:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2023-11-06 22:24:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2023-11-06 22:24:33,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2023-11-06 22:24:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2023-11-06 22:24:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2023-11-06 22:24:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2023-11-06 22:24:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2023-11-06 22:24:33,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2023-11-06 22:24:33,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2023-11-06 22:24:33,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:24:33,923 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:33,932 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:24:33,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:24:33,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:24:33 BasicIcfg [2023-11-06 22:24:33,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:24:33,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:24:33,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:24:33,941 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:24:33,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:53" (3/4) ... [2023-11-06 22:24:33,944 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:24:33,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:24:33,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:24:33,948 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-06 22:24:33,956 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:24:33,956 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:24:33,957 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:24:33,957 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:24:34,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:24:34,028 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:24:34,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:24:34,029 INFO L158 Benchmark]: Toolchain (without parser) took 43991.16ms. Allocated memory was 184.5MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 140.0MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 962.3MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,030 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 184.5MB. Free memory is still 159.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:24:34,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.61ms. Allocated memory is still 184.5MB. Free memory was 140.0MB in the beginning and 127.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.38ms. Allocated memory is still 184.5MB. Free memory was 127.8MB in the beginning and 125.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,031 INFO L158 Benchmark]: Boogie Preprocessor took 45.22ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,032 INFO L158 Benchmark]: RCFGBuilder took 2699.38ms. Allocated memory was 184.5MB in the beginning and 249.6MB in the end (delta: 65.0MB). Free memory was 123.2MB in the beginning and 184.3MB in the end (delta: -61.0MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,032 INFO L158 Benchmark]: TraceAbstraction took 40795.47ms. Allocated memory was 249.6MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 183.2MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 934.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,033 INFO L158 Benchmark]: Witness Printer took 88.06ms. Allocated memory is still 4.1GB. Free memory was 3.1GB in the beginning and 3.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:24:34,037 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 184.5MB. Free memory is still 159.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.61ms. Allocated memory is still 184.5MB. Free memory was 140.0MB in the beginning and 127.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.38ms. Allocated memory is still 184.5MB. Free memory was 127.8MB in the beginning and 125.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.22ms. Allocated memory is still 184.5MB. Free memory was 125.3MB in the beginning and 123.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2699.38ms. Allocated memory was 184.5MB in the beginning and 249.6MB in the end (delta: 65.0MB). Free memory was 123.2MB in the beginning and 184.3MB in the end (delta: -61.0MB). Peak memory consumption was 84.9MB. Max. memory is 16.1GB. * TraceAbstraction took 40795.47ms. Allocated memory was 249.6MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 183.2MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 934.1MB. Max. memory is 16.1GB. * Witness Printer took 88.06ms. Allocated memory is still 4.1GB. Free memory was 3.1GB in the beginning and 3.1GB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7s, 136 PlacesBefore, 60 PlacesAfterwards, 126 TransitionsBefore, 50 TransitionsAfterwards, 2430 CoEnabledTransitionPairs, 7 FixpointIterations, 58 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 76 TotalNumberOfCompositions, 1794 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1794, independent: 1794, independent conditional: 0, independent unconditional: 1794, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 692, independent: 692, independent conditional: 0, independent unconditional: 692, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1794, independent: 1102, independent conditional: 0, independent unconditional: 1102, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 692, unknown conditional: 0, unknown unconditional: 692] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 159, Positive conditional cache size: 0, Positive unconditional cache size: 159, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 101]: 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, 204 locations, 75 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: 40.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 299 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 354 IncrementalHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 14 mSDtfsCounter, 354 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:24:34,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a1ef81c-a263-4067-8616-8d917062717b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE