./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX --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 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:06:25,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:06:25,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:06:25,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:06:25,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:06:25,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:06:25,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:06:25,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:06:25,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:06:25,740 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:06:25,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:06:25,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:06:25,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:06:25,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:06:25,741 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:06:25,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:06:25,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:06:25,748 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:06:25,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:06:25,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:06:25,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:06:25,749 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:06:25,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:06:25,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:06:25,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:06:25,750 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:06:25,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:06:25,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:06:25,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:06:25,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:06:25,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:06:25,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:06:25,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:06:25,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:06:25,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:06:25,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:06:25,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:06:25,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:06:25,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:06:25,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:06:25,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:06:25,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:06:25,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:06:25,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:06:25,777 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_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 [2024-11-08 17:06:26,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:06:26,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:06:26,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:06:26,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:06:26,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:06:26,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c Unable to find full path for "g++" [2024-11-08 17:06:27,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:06:28,271 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:06:28,272 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-08 17:06:28,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/data/6fdbc8bd7/04f90f14ab454388a68d7c5bbe5e81bb/FLAG51d1336ec [2024-11-08 17:06:28,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/data/6fdbc8bd7/04f90f14ab454388a68d7c5bbe5e81bb [2024-11-08 17:06:28,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:06:28,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:06:28,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:06:28,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:06:28,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:06:28,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9347e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28, skipping insertion in model container [2024-11-08 17:06:28,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:06:28,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:06:28,698 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:06:28,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:06:28,778 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:06:28,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28 WrapperNode [2024-11-08 17:06:28,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:06:28,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:06:28,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:06:28,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:06:28,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,844 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 301 [2024-11-08 17:06:28,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:06:28,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:06:28,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:06:28,846 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:06:28,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,875 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,900 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-08 17:06:28,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:06:28,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:06:28,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:06:28,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:06:28,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (1/1) ... [2024-11-08 17:06:28,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:06:28,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:28,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:06:28,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:06:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:06:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:06:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:06:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:06:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:06:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 17:06:29,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 17:06:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 17:06:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 17:06:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 17:06:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 17:06:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-08 17:06:29,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-08 17:06:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:06:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:06:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 17:06:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 17:06:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:06:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:06:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:06:29,029 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:06:29,184 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:06:29,185 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:06:29,764 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:06:29,765 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:06:30,439 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:06:30,440 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 17:06:30,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:06:30 BoogieIcfgContainer [2024-11-08 17:06:30,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:06:30,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:06:30,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:06:30,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:06:30,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:06:28" (1/3) ... [2024-11-08 17:06:30,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767c02e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:06:30, skipping insertion in model container [2024-11-08 17:06:30,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:06:28" (2/3) ... [2024-11-08 17:06:30,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767c02e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:06:30, skipping insertion in model container [2024-11-08 17:06:30,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:06:30" (3/3) ... [2024-11-08 17:06:30,464 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-11-08 17:06:30,492 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:06:30,492 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-08 17:06:30,492 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:06:30,661 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-11-08 17:06:30,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 92 transitions, 224 flow [2024-11-08 17:06:30,765 INFO L124 PetriNetUnfolderBase]: 10/85 cut-off events. [2024-11-08 17:06:30,765 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:06:30,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 85 events. 10/85 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 254 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2024-11-08 17:06:30,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 92 transitions, 224 flow [2024-11-08 17:06:30,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 83 transitions, 193 flow [2024-11-08 17:06:30,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:06:30,798 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;@71bf7511, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:06:30,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-08 17:06:30,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:06:30,801 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-08 17:06:30,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:06:30,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:30,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-08 17:06:30,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:30,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash 33232, now seen corresponding path program 1 times [2024-11-08 17:06:30,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:30,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60897934] [2024-11-08 17:06:30,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:30,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60897934] [2024-11-08 17:06:31,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60897934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:31,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:06:31,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 17:06:31,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708922756] [2024-11-08 17:06:31,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:31,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:06:31,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:31,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:06:31,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:06:31,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 94 [2024-11-08 17:06:31,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:31,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:31,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 94 [2024-11-08 17:06:31,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:06:38,326 INFO L124 PetriNetUnfolderBase]: 38647/51875 cut-off events. [2024-11-08 17:06:38,327 INFO L125 PetriNetUnfolderBase]: For 2053/2053 co-relation queries the response was YES. [2024-11-08 17:06:38,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106414 conditions, 51875 events. 38647/51875 cut-off events. For 2053/2053 co-relation queries the response was YES. Maximal size of possible extension queue 1999. Compared 299483 event pairs, 35544 based on Foata normal form. 1/32837 useless extension candidates. Maximal degree in co-relation 106315. Up to 51843 conditions per place. [2024-11-08 17:06:38,729 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 62 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2024-11-08 17:06:38,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 73 transitions, 299 flow [2024-11-08 17:06:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:06:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:06:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2024-11-08 17:06:38,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4078014184397163 [2024-11-08 17:06:38,747 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 193 flow. Second operand 3 states and 115 transitions. [2024-11-08 17:06:38,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 73 transitions, 299 flow [2024-11-08 17:06:38,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 73 transitions, 282 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-08 17:06:38,787 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 158 flow [2024-11-08 17:06:38,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-11-08 17:06:38,795 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-11-08 17:06:38,796 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 158 flow [2024-11-08 17:06:38,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:38,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:38,797 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-08 17:06:38,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:06:38,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:38,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:38,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1031211, now seen corresponding path program 1 times [2024-11-08 17:06:38,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:38,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645634544] [2024-11-08 17:06:38,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:38,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:38,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:38,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645634544] [2024-11-08 17:06:38,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645634544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:38,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:06:38,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 17:06:38,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030768191] [2024-11-08 17:06:38,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:38,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:06:38,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:38,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:06:38,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:06:38,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 94 [2024-11-08 17:06:38,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 73 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:38,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:38,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 94 [2024-11-08 17:06:38,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:06:43,101 INFO L124 PetriNetUnfolderBase]: 31319/42069 cut-off events. [2024-11-08 17:06:43,101 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-08 17:06:43,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85263 conditions, 42069 events. 31319/42069 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 1517. Compared 236240 event pairs, 28618 based on Foata normal form. 0/27804 useless extension candidates. Maximal degree in co-relation 85257. Up to 42037 conditions per place. [2024-11-08 17:06:43,291 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 58 selfloop transitions, 1 changer transitions 0/69 dead transitions. [2024-11-08 17:06:43,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 268 flow [2024-11-08 17:06:43,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:06:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:06:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-08 17:06:43,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3723404255319149 [2024-11-08 17:06:43,294 INFO L175 Difference]: Start difference. First operand has 74 places, 73 transitions, 158 flow. Second operand 3 states and 105 transitions. [2024-11-08 17:06:43,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 268 flow [2024-11-08 17:06:43,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:06:43,296 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 151 flow [2024-11-08 17:06:43,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2024-11-08 17:06:43,297 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -15 predicate places. [2024-11-08 17:06:43,297 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 151 flow [2024-11-08 17:06:43,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:43,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:43,298 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:06:43,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:06:43,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:43,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:43,299 INFO L85 PathProgramCache]: Analyzing trace with hash 657080385, now seen corresponding path program 1 times [2024-11-08 17:06:43,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:43,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278682542] [2024-11-08 17:06:43,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:43,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:43,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:43,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278682542] [2024-11-08 17:06:43,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278682542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:43,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:06:43,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:06:43,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384174419] [2024-11-08 17:06:43,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:43,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:06:43,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:06:43,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:06:43,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 94 [2024-11-08 17:06:43,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:43,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:43,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 94 [2024-11-08 17:06:43,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:06:47,498 INFO L124 PetriNetUnfolderBase]: 31321/42076 cut-off events. [2024-11-08 17:06:47,498 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-08 17:06:47,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85276 conditions, 42076 events. 31321/42076 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 1517. Compared 236225 event pairs, 28618 based on Foata normal form. 1/27811 useless extension candidates. Maximal degree in co-relation 85269. Up to 42041 conditions per place. [2024-11-08 17:06:47,688 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 60 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2024-11-08 17:06:47,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 72 transitions, 285 flow [2024-11-08 17:06:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:06:47,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:06:47,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-08 17:06:47,692 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.324468085106383 [2024-11-08 17:06:47,693 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 151 flow. Second operand 4 states and 122 transitions. [2024-11-08 17:06:47,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 72 transitions, 285 flow [2024-11-08 17:06:47,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 72 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:06:47,696 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 179 flow [2024-11-08 17:06:47,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2024-11-08 17:06:47,697 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2024-11-08 17:06:47,698 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 179 flow [2024-11-08 17:06:47,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:47,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:47,698 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 17:06:47,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:06:47,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:47,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:47,700 INFO L85 PathProgramCache]: Analyzing trace with hash 225902848, now seen corresponding path program 1 times [2024-11-08 17:06:47,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:47,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347902225] [2024-11-08 17:06:47,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:47,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:47,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:47,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347902225] [2024-11-08 17:06:47,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347902225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:47,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568998656] [2024-11-08 17:06:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:47,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:47,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:47,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:06:47,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:06:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:48,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:06:48,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:06:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:48,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:06:48,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568998656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:48,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:06:48,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 17:06:48,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689630746] [2024-11-08 17:06:48,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:48,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:06:48,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:48,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:06:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:06:48,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 94 [2024-11-08 17:06:48,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:48,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:48,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 94 [2024-11-08 17:06:48,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:06:51,780 INFO L124 PetriNetUnfolderBase]: 31321/42075 cut-off events. [2024-11-08 17:06:51,780 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-11-08 17:06:51,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85287 conditions, 42075 events. 31321/42075 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 1517. Compared 236289 event pairs, 28618 based on Foata normal form. 1/27810 useless extension candidates. Maximal degree in co-relation 85278. Up to 42036 conditions per place. [2024-11-08 17:06:51,976 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 56 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2024-11-08 17:06:51,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 71 transitions, 301 flow [2024-11-08 17:06:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:06:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:06:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-11-08 17:06:51,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2624113475177305 [2024-11-08 17:06:51,978 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 179 flow. Second operand 6 states and 148 transitions. [2024-11-08 17:06:51,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 71 transitions, 301 flow [2024-11-08 17:06:51,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 298 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:06:51,981 INFO L231 Difference]: Finished difference. Result has 78 places, 71 transitions, 186 flow [2024-11-08 17:06:51,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=186, PETRI_PLACES=78, PETRI_TRANSITIONS=71} [2024-11-08 17:06:51,982 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, -8 predicate places. [2024-11-08 17:06:51,982 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 71 transitions, 186 flow [2024-11-08 17:06:51,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:51,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:51,983 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 17:06:52,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:06:52,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-08 17:06:52,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:52,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:52,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1586945299, now seen corresponding path program 1 times [2024-11-08 17:06:52,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:52,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674404186] [2024-11-08 17:06:52,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:52,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:52,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674404186] [2024-11-08 17:06:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674404186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447653515] [2024-11-08 17:06:52,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:52,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:52,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:52,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:06:52,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:06:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:52,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:06:52,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:06:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:52,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:06:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447653515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:06:52,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:06:52,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-08 17:06:52,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393905493] [2024-11-08 17:06:52,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:06:52,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 17:06:52,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 17:06:52,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:06:52,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 94 [2024-11-08 17:06:52,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 71 transitions, 186 flow. Second operand has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:52,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:52,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 94 [2024-11-08 17:06:52,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:06:56,855 INFO L124 PetriNetUnfolderBase]: 31327/42096 cut-off events. [2024-11-08 17:06:56,856 INFO L125 PetriNetUnfolderBase]: For 363/363 co-relation queries the response was YES. [2024-11-08 17:06:56,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85340 conditions, 42096 events. 31327/42096 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 236558 event pairs, 28618 based on Foata normal form. 3/27831 useless extension candidates. Maximal degree in co-relation 85331. Up to 42043 conditions per place. [2024-11-08 17:06:57,082 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 59 selfloop transitions, 13 changer transitions 0/80 dead transitions. [2024-11-08 17:06:57,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 80 transitions, 384 flow [2024-11-08 17:06:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:06:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:06:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 215 transitions. [2024-11-08 17:06:57,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.22872340425531915 [2024-11-08 17:06:57,085 INFO L175 Difference]: Start difference. First operand has 78 places, 71 transitions, 186 flow. Second operand 10 states and 215 transitions. [2024-11-08 17:06:57,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 80 transitions, 384 flow [2024-11-08 17:06:57,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 80 transitions, 354 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-08 17:06:57,088 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 254 flow [2024-11-08 17:06:57,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=254, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-08 17:06:57,089 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 0 predicate places. [2024-11-08 17:06:57,090 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 254 flow [2024-11-08 17:06:57,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:57,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:06:57,090 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:06:57,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:06:57,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff3d7f89-ccdb-442d-b4d8-341745ba9a22/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:57,291 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:06:57,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:57,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1344857209, now seen corresponding path program 1 times [2024-11-08 17:06:57,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:57,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575004474] [2024-11-08 17:06:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:06:57,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:57,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575004474] [2024-11-08 17:06:57,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575004474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:06:57,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:06:57,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:06:57,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146058871] [2024-11-08 17:06:57,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:06:57,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:06:57,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:06:57,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:06:57,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 94 [2024-11-08 17:06:57,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:06:57,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:06:57,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 94 [2024-11-08 17:06:57,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:07:02,478 INFO L124 PetriNetUnfolderBase]: 44943/60314 cut-off events. [2024-11-08 17:07:02,478 INFO L125 PetriNetUnfolderBase]: For 582/582 co-relation queries the response was YES. [2024-11-08 17:07:02,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121954 conditions, 60314 events. 44943/60314 cut-off events. For 582/582 co-relation queries the response was YES. Maximal size of possible extension queue 1968. Compared 353636 event pairs, 28644 based on Foata normal form. 0/41185 useless extension candidates. Maximal degree in co-relation 121943. Up to 42056 conditions per place. [2024-11-08 17:07:02,998 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 113 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-08 17:07:02,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 124 transitions, 579 flow [2024-11-08 17:07:02,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:07:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:07:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2024-11-08 17:07:02,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5390070921985816 [2024-11-08 17:07:02,999 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 254 flow. Second operand 3 states and 152 transitions. [2024-11-08 17:07:02,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 124 transitions, 579 flow [2024-11-08 17:07:03,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 124 transitions, 568 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-08 17:07:03,002 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 255 flow [2024-11-08 17:07:03,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2024-11-08 17:07:03,003 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 1 predicate places. [2024-11-08 17:07:03,004 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 255 flow [2024-11-08 17:07:03,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:07:03,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:07:03,004 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:03,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:07:03,005 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-08 17:07:03,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 263387933, now seen corresponding path program 1 times [2024-11-08 17:07:03,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:03,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170857787] [2024-11-08 17:07:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:07:03,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170857787] [2024-11-08 17:07:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170857787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:03,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:07:03,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899670195] [2024-11-08 17:07:03,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:03,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:07:03,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:07:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:07:03,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 94 [2024-11-08 17:07:03,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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) [2024-11-08 17:07:03,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:07:03,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 94 [2024-11-08 17:07:03,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand