./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cae81f1fa2e32e73e0569957bc583bbf3478ffc71be87871acb9920c44bcfd4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:49,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:49,143 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:58:49,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:49,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:49,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:49,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:49,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:49,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:49,209 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:49,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:49,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:49,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:49,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:49,211 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:49,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:49,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:49,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:49,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:49,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:49,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:49,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:49,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:49,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:49,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:49,219 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:58:49,220 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:58:49,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:49,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:49,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:49,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:49,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:49,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:49,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:49,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:49,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:49,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:49,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:49,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:49,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:49,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:49,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:49,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:49,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:49,243 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_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cae81f1fa2e32e73e0569957bc583bbf3478ffc71be87871acb9920c44bcfd4 [2024-10-31 21:58:49,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:49,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:49,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:49,574 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:49,575 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:49,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c Unable to find full path for "g++" [2024-10-31 21:58:51,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:51,931 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:51,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-10-31 21:58:51,942 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/data/3fce887d7/4e4aa31e16104caa8d34c20cc0474e32/FLAGe4be04f62 [2024-10-31 21:58:51,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/data/3fce887d7/4e4aa31e16104caa8d34c20cc0474e32 [2024-10-31 21:58:51,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:51,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:51,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:51,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:52,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:52,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:51" (1/1) ... [2024-10-31 21:58:52,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d05f459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52, skipping insertion in model container [2024-10-31 21:58:52,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:51" (1/1) ... [2024-10-31 21:58:52,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:52,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:52,322 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:52,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:52,370 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:52,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52 WrapperNode [2024-10-31 21:58:52,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:52,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:52,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:52,373 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:52,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,421 INFO L138 Inliner]: procedures = 20, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 156 [2024-10-31 21:58:52,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:52,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:52,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:52,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:52,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,460 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:58:52,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:52,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:52,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:52,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:52,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (1/1) ... [2024-10-31 21:58:52,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:52,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:52,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:52,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 21:58:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 21:58:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 21:58:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 21:58:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 21:58:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 21:58:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:52,565 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 21:58:52,710 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:52,713 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:53,136 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 21:58:53,136 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:53,462 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:53,462 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:58:53,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:53 BoogieIcfgContainer [2024-10-31 21:58:53,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:53,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:53,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:53,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:53,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:51" (1/3) ... [2024-10-31 21:58:53,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd5748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:53, skipping insertion in model container [2024-10-31 21:58:53,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:52" (2/3) ... [2024-10-31 21:58:53,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd5748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:53, skipping insertion in model container [2024-10-31 21:58:53,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:53" (3/3) ... [2024-10-31 21:58:53,474 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-10-31 21:58:53,496 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:53,496 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 21:58:53,496 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 21:58:53,539 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 21:58:53,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 94 flow [2024-10-31 21:58:53,631 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-10-31 21:58:53,631 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 21:58:53,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 0/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-31 21:58:53,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 40 transitions, 94 flow [2024-10-31 21:58:53,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 36 transitions, 81 flow [2024-10-31 21:58:53,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:53,659 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a2d9432, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:53,659 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-31 21:58:53,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 21:58:53,666 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-10-31 21:58:53,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:58:53,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:53,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:58:53,671 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:53,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:53,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1641278971, now seen corresponding path program 1 times [2024-10-31 21:58:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:53,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484016394] [2024-10-31 21:58:53,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:53,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:54,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484016394] [2024-10-31 21:58:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484016394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:54,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:54,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787071146] [2024-10-31 21:58:54,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:54,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:54,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-31 21:58:54,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:54,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:54,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-31 21:58:54,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:54,500 INFO L124 PetriNetUnfolderBase]: 346/679 cut-off events. [2024-10-31 21:58:54,500 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-31 21:58:54,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 679 events. 346/679 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3636 event pairs, 85 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1266. Up to 450 conditions per place. [2024-10-31 21:58:54,512 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 34 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-10-31 21:58:54,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 178 flow [2024-10-31 21:58:54,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:58:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-10-31 21:58:54,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51875 [2024-10-31 21:58:54,530 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 81 flow. Second operand 4 states and 83 transitions. [2024-10-31 21:58:54,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 178 flow [2024-10-31 21:58:54,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 171 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:58:54,537 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 80 flow [2024-10-31 21:58:54,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-10-31 21:58:54,544 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2024-10-31 21:58:54,545 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 80 flow [2024-10-31 21:58:54,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:54,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:54,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 21:58:54,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:58:54,546 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:54,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:54,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1641278970, now seen corresponding path program 1 times [2024-10-31 21:58:54,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:54,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608014631] [2024-10-31 21:58:54,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:54,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:54,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:54,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608014631] [2024-10-31 21:58:54,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608014631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:54,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:54,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:54,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60262594] [2024-10-31 21:58:54,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:54,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:54,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:54,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:54,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-31 21:58:54,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:54,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:54,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-31 21:58:54,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:54,958 INFO L124 PetriNetUnfolderBase]: 314/632 cut-off events. [2024-10-31 21:58:54,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 21:58:54,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 632 events. 314/632 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3328 event pairs, 111 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 911. Up to 389 conditions per place. [2024-10-31 21:58:54,968 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 38 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-10-31 21:58:54,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 210 flow [2024-10-31 21:58:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 21:58:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2024-10-31 21:58:54,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-31 21:58:54,975 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 80 flow. Second operand 4 states and 96 transitions. [2024-10-31 21:58:54,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 210 flow [2024-10-31 21:58:54,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 21:58:54,979 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 115 flow [2024-10-31 21:58:54,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2024-10-31 21:58:54,980 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-10-31 21:58:54,980 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 115 flow [2024-10-31 21:58:54,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:54,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:54,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:54,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:58:54,986 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:54,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 887004801, now seen corresponding path program 1 times [2024-10-31 21:58:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793275131] [2024-10-31 21:58:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:55,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:55,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793275131] [2024-10-31 21:58:55,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793275131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:55,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:55,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:55,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200283959] [2024-10-31 21:58:55,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:55,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:55,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:55,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:55,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:55,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-31 21:58:55,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:55,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:55,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-31 21:58:55,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:55,396 INFO L124 PetriNetUnfolderBase]: 249/529 cut-off events. [2024-10-31 21:58:55,396 INFO L125 PetriNetUnfolderBase]: For 113/124 co-relation queries the response was YES. [2024-10-31 21:58:55,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 529 events. 249/529 cut-off events. For 113/124 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2877 event pairs, 98 based on Foata normal form. 11/449 useless extension candidates. Maximal degree in co-relation 648. Up to 190 conditions per place. [2024-10-31 21:58:55,402 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 50 selfloop transitions, 4 changer transitions 7/73 dead transitions. [2024-10-31 21:58:55,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 331 flow [2024-10-31 21:58:55,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:55,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:58:55,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-10-31 21:58:55,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-10-31 21:58:55,404 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 115 flow. Second operand 5 states and 126 transitions. [2024-10-31 21:58:55,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 331 flow [2024-10-31 21:58:55,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 21:58:55,409 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 141 flow [2024-10-31 21:58:55,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-10-31 21:58:55,411 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-10-31 21:58:55,411 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 141 flow [2024-10-31 21:58:55,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:55,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:55,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:58:55,412 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:55,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:55,412 INFO L85 PathProgramCache]: Analyzing trace with hash 806810470, now seen corresponding path program 1 times [2024-10-31 21:58:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052232084] [2024-10-31 21:58:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:55,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:55,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052232084] [2024-10-31 21:58:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052232084] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:55,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:55,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599962108] [2024-10-31 21:58:55,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:55,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:55,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:55,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-10-31 21:58:55,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:55,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:55,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-10-31 21:58:55,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:55,945 INFO L124 PetriNetUnfolderBase]: 381/766 cut-off events. [2024-10-31 21:58:55,946 INFO L125 PetriNetUnfolderBase]: For 370/394 co-relation queries the response was YES. [2024-10-31 21:58:55,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 766 events. 381/766 cut-off events. For 370/394 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4078 event pairs, 81 based on Foata normal form. 24/726 useless extension candidates. Maximal degree in co-relation 1371. Up to 436 conditions per place. [2024-10-31 21:58:55,953 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 49 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2024-10-31 21:58:55,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 342 flow [2024-10-31 21:58:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:55,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:58:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2024-10-31 21:58:55,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.555 [2024-10-31 21:58:55,955 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 141 flow. Second operand 5 states and 111 transitions. [2024-10-31 21:58:55,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 342 flow [2024-10-31 21:58:55,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 328 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:55,964 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 187 flow [2024-10-31 21:58:55,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2024-10-31 21:58:55,965 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-10-31 21:58:55,965 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 187 flow [2024-10-31 21:58:55,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:55,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:55,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:55,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:58:55,967 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:55,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:55,967 INFO L85 PathProgramCache]: Analyzing trace with hash -131613075, now seen corresponding path program 1 times [2024-10-31 21:58:55,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:55,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071560489] [2024-10-31 21:58:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:56,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071560489] [2024-10-31 21:58:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071560489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:56,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:56,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335001401] [2024-10-31 21:58:56,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:56,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:58:56,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:56,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:58:56,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:56,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-31 21:58:56,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:56,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:56,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-31 21:58:56,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:56,585 INFO L124 PetriNetUnfolderBase]: 336/693 cut-off events. [2024-10-31 21:58:56,585 INFO L125 PetriNetUnfolderBase]: For 422/446 co-relation queries the response was YES. [2024-10-31 21:58:56,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1771 conditions, 693 events. 336/693 cut-off events. For 422/446 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3750 event pairs, 91 based on Foata normal form. 37/673 useless extension candidates. Maximal degree in co-relation 1498. Up to 564 conditions per place. [2024-10-31 21:58:56,592 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 38 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-10-31 21:58:56,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 307 flow [2024-10-31 21:58:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:56,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:58:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-10-31 21:58:56,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-10-31 21:58:56,594 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 187 flow. Second operand 5 states and 92 transitions. [2024-10-31 21:58:56,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 307 flow [2024-10-31 21:58:56,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 298 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-31 21:58:56,599 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 209 flow [2024-10-31 21:58:56,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2024-10-31 21:58:56,600 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-10-31 21:58:56,600 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 209 flow [2024-10-31 21:58:56,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:56,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:56,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:56,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:58:56,601 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:56,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2072005030, now seen corresponding path program 1 times [2024-10-31 21:58:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:56,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140694078] [2024-10-31 21:58:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:56,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140694078] [2024-10-31 21:58:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140694078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:56,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:56,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:56,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971005367] [2024-10-31 21:58:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:56,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:58:56,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:56,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:58:56,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:56,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-31 21:58:56,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:56,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:56,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-31 21:58:56,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:57,039 INFO L124 PetriNetUnfolderBase]: 414/868 cut-off events. [2024-10-31 21:58:57,040 INFO L125 PetriNetUnfolderBase]: For 517/531 co-relation queries the response was YES. [2024-10-31 21:58:57,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 868 events. 414/868 cut-off events. For 517/531 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5002 event pairs, 101 based on Foata normal form. 34/837 useless extension candidates. Maximal degree in co-relation 1353. Up to 522 conditions per place. [2024-10-31 21:58:57,048 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 11 changer transitions 0/72 dead transitions. [2024-10-31 21:58:57,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 411 flow [2024-10-31 21:58:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:58:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-10-31 21:58:57,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.545 [2024-10-31 21:58:57,053 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 209 flow. Second operand 5 states and 109 transitions. [2024-10-31 21:58:57,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 411 flow [2024-10-31 21:58:57,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 72 transitions, 406 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 21:58:57,059 INFO L231 Difference]: Finished difference. Result has 63 places, 49 transitions, 258 flow [2024-10-31 21:58:57,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2024-10-31 21:58:57,061 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-10-31 21:58:57,063 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 258 flow [2024-10-31 21:58:57,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:57,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:57,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:57,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:58:57,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:57,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1481121164, now seen corresponding path program 1 times [2024-10-31 21:58:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828830362] [2024-10-31 21:58:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:57,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:57,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828830362] [2024-10-31 21:58:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828830362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:57,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:57,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958678672] [2024-10-31 21:58:57,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:57,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:57,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:57,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:57,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-31 21:58:57,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:57,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:57,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-31 21:58:57,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:57,420 INFO L124 PetriNetUnfolderBase]: 309/682 cut-off events. [2024-10-31 21:58:57,420 INFO L125 PetriNetUnfolderBase]: For 592/617 co-relation queries the response was YES. [2024-10-31 21:58:57,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 682 events. 309/682 cut-off events. For 592/617 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3857 event pairs, 116 based on Foata normal form. 59/692 useless extension candidates. Maximal degree in co-relation 1191. Up to 195 conditions per place. [2024-10-31 21:58:57,427 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 43 selfloop transitions, 4 changer transitions 3/70 dead transitions. [2024-10-31 21:58:57,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 434 flow [2024-10-31 21:58:57,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 21:58:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-10-31 21:58:57,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54 [2024-10-31 21:58:57,429 INFO L175 Difference]: Start difference. First operand has 63 places, 49 transitions, 258 flow. Second operand 5 states and 108 transitions. [2024-10-31 21:58:57,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 434 flow [2024-10-31 21:58:57,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 430 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-31 21:58:57,436 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 280 flow [2024-10-31 21:58:57,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-31 21:58:57,437 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2024-10-31 21:58:57,437 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 280 flow [2024-10-31 21:58:57,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:57,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:57,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:57,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:58:57,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:57,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1820119940, now seen corresponding path program 1 times [2024-10-31 21:58:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:57,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56948210] [2024-10-31 21:58:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:57,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:57,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56948210] [2024-10-31 21:58:57,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56948210] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:57,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:57,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:57,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201722410] [2024-10-31 21:58:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:57,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:57,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:57,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-31 21:58:57,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:57,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:57,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-31 21:58:57,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:57,998 INFO L124 PetriNetUnfolderBase]: 337/698 cut-off events. [2024-10-31 21:58:57,998 INFO L125 PetriNetUnfolderBase]: For 651/663 co-relation queries the response was YES. [2024-10-31 21:58:58,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2038 conditions, 698 events. 337/698 cut-off events. For 651/663 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3823 event pairs, 127 based on Foata normal form. 12/675 useless extension candidates. Maximal degree in co-relation 1427. Up to 225 conditions per place. [2024-10-31 21:58:58,007 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 48 selfloop transitions, 5 changer transitions 1/72 dead transitions. [2024-10-31 21:58:58,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 72 transitions, 460 flow [2024-10-31 21:58:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:58:58,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:58:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-10-31 21:58:58,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-10-31 21:58:58,010 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 280 flow. Second operand 6 states and 116 transitions. [2024-10-31 21:58:58,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 72 transitions, 460 flow [2024-10-31 21:58:58,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 72 transitions, 455 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 21:58:58,019 INFO L231 Difference]: Finished difference. Result has 72 places, 49 transitions, 279 flow [2024-10-31 21:58:58,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2024-10-31 21:58:58,023 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2024-10-31 21:58:58,024 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 49 transitions, 279 flow [2024-10-31 21:58:58,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:58,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:58,024 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:58,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:58:58,025 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:58,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1820119939, now seen corresponding path program 1 times [2024-10-31 21:58:58,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:58,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86536188] [2024-10-31 21:58:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:58,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:58,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:58,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86536188] [2024-10-31 21:58:58,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86536188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:58,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:58,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809250105] [2024-10-31 21:58:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:58,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:58,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:58,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-31 21:58:58,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 49 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:58,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:58,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-31 21:58:58,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:58,557 INFO L124 PetriNetUnfolderBase]: 325/672 cut-off events. [2024-10-31 21:58:58,558 INFO L125 PetriNetUnfolderBase]: For 720/732 co-relation queries the response was YES. [2024-10-31 21:58:58,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2024 conditions, 672 events. 325/672 cut-off events. For 720/732 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3686 event pairs, 102 based on Foata normal form. 26/663 useless extension candidates. Maximal degree in co-relation 1409. Up to 176 conditions per place. [2024-10-31 21:58:58,564 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 31 selfloop transitions, 3 changer transitions 30/78 dead transitions. [2024-10-31 21:58:58,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 78 transitions, 504 flow [2024-10-31 21:58:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:58:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 21:58:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 157 transitions. [2024-10-31 21:58:58,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4361111111111111 [2024-10-31 21:58:58,567 INFO L175 Difference]: Start difference. First operand has 72 places, 49 transitions, 279 flow. Second operand 9 states and 157 transitions. [2024-10-31 21:58:58,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 78 transitions, 504 flow [2024-10-31 21:58:58,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 78 transitions, 482 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-31 21:58:58,574 INFO L231 Difference]: Finished difference. Result has 73 places, 38 transitions, 198 flow [2024-10-31 21:58:58,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=73, PETRI_TRANSITIONS=38} [2024-10-31 21:58:58,576 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2024-10-31 21:58:58,577 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 38 transitions, 198 flow [2024-10-31 21:58:58,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:58,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:58,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:58,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 21:58:58,578 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:58,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:58,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1819659140, now seen corresponding path program 1 times [2024-10-31 21:58:58,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:58,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909095635] [2024-10-31 21:58:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:58,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:58,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909095635] [2024-10-31 21:58:58,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909095635] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:58,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:58,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918036520] [2024-10-31 21:58:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:58,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:58,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:58,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:58,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:58,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-31 21:58:58,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 38 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:58,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:58,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-31 21:58:58,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:59,202 INFO L124 PetriNetUnfolderBase]: 192/413 cut-off events. [2024-10-31 21:58:59,202 INFO L125 PetriNetUnfolderBase]: For 329/336 co-relation queries the response was YES. [2024-10-31 21:58:59,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 413 events. 192/413 cut-off events. For 329/336 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2018 event pairs, 81 based on Foata normal form. 7/398 useless extension candidates. Maximal degree in co-relation 1069. Up to 176 conditions per place. [2024-10-31 21:58:59,206 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 31 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-10-31 21:58:59,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 49 transitions, 310 flow [2024-10-31 21:58:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:58:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:58:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-31 21:58:59,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-10-31 21:58:59,209 INFO L175 Difference]: Start difference. First operand has 73 places, 38 transitions, 198 flow. Second operand 6 states and 99 transitions. [2024-10-31 21:58:59,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 49 transitions, 310 flow [2024-10-31 21:58:59,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 271 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-10-31 21:58:59,214 INFO L231 Difference]: Finished difference. Result has 53 places, 37 transitions, 171 flow [2024-10-31 21:58:59,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2024-10-31 21:58:59,216 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2024-10-31 21:58:59,217 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 37 transitions, 171 flow [2024-10-31 21:58:59,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:59,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 21:58:59,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:59,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:58:59,218 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-31 21:58:59,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:59,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1819659139, now seen corresponding path program 1 times [2024-10-31 21:58:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10130078] [2024-10-31 21:58:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:59,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:59,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10130078] [2024-10-31 21:58:59,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10130078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:59,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:59,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184997143] [2024-10-31 21:58:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:59,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:58:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:58:59,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:59,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-31 21:58:59,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 37 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:59,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 21:58:59,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-31 21:58:59,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 21:58:59,532 INFO L124 PetriNetUnfolderBase]: 183/394 cut-off events. [2024-10-31 21:58:59,532 INFO L125 PetriNetUnfolderBase]: For 163/170 co-relation queries the response was YES. [2024-10-31 21:58:59,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 394 events. 183/394 cut-off events. For 163/170 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1924 event pairs, 81 based on Foata normal form. 17/389 useless extension candidates. Maximal degree in co-relation 736. Up to 176 conditions per place. [2024-10-31 21:58:59,534 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-10-31 21:58:59,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 275 flow [2024-10-31 21:58:59,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:58:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 21:58:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-10-31 21:58:59,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4083333333333333 [2024-10-31 21:58:59,536 INFO L175 Difference]: Start difference. First operand has 53 places, 37 transitions, 171 flow. Second operand 6 states and 98 transitions. [2024-10-31 21:58:59,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 275 flow [2024-10-31 21:58:59,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 266 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-31 21:58:59,539 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-10-31 21:58:59,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-10-31 21:58:59,540 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2024-10-31 21:58:59,540 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-10-31 21:58:59,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:59,543 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-31 21:58:59,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-31 21:58:59,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-31 21:58:59,547 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-31 21:58:59,547 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-10-31 21:58:59,547 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-10-31 21:58:59,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-31 21:58:59,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-31 21:58:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 21:58:59,554 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:59,566 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 21:58:59,566 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 21:58:59,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 09:58:59 BasicIcfg [2024-10-31 21:58:59,575 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 21:58:59,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 21:58:59,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 21:58:59,576 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 21:58:59,577 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:53" (3/4) ... [2024-10-31 21:58:59,579 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 21:58:59,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-31 21:58:59,583 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-31 21:58:59,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-10-31 21:58:59,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-31 21:58:59,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-31 21:58:59,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 21:58:59,710 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 21:58:59,710 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 21:58:59,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 21:58:59,711 INFO L158 Benchmark]: Toolchain (without parser) took 7742.29ms. Allocated memory was 125.8MB in the beginning and 205.5MB in the end (delta: 79.7MB). Free memory was 62.1MB in the beginning and 74.8MB in the end (delta: -12.7MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,712 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 21:58:59,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.38ms. Allocated memory is still 169.9MB. Free memory was 142.1MB in the beginning and 128.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.93ms. Allocated memory is still 169.9MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,713 INFO L158 Benchmark]: Boogie Preprocessor took 54.54ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,713 INFO L158 Benchmark]: RCFGBuilder took 985.67ms. Allocated memory is still 169.9MB. Free memory was 124.2MB in the beginning and 86.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,713 INFO L158 Benchmark]: TraceAbstraction took 6108.71ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.0MB in the beginning and 80.1MB in the end (delta: 5.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,714 INFO L158 Benchmark]: Witness Printer took 135.35ms. Allocated memory is still 205.5MB. Free memory was 80.1MB in the beginning and 74.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-31 21:58:59,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.38ms. Allocated memory is still 169.9MB. Free memory was 142.1MB in the beginning and 128.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.93ms. Allocated memory is still 169.9MB. Free memory was 128.4MB in the beginning and 126.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.54ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 985.67ms. Allocated memory is still 169.9MB. Free memory was 124.2MB in the beginning and 86.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6108.71ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 86.0MB in the beginning and 80.1MB in the end (delta: 5.9MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 135.35ms. Allocated memory is still 205.5MB. Free memory was 80.1MB in the beginning and 74.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 75 locations, 18 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: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 392 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 351 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 939 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 18 mSDtfsCounter, 939 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=7, InterpolantAutomatonStates: 60, 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, 2.0s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 21:58:59,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdbecce8-e5ce-4fe6-8a9e-33122ee56b59/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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