./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.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_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/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_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/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_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:52:05,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:52:05,269 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:52:05,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:52:05,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:52:05,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:52:05,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:52:05,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:52:05,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:52:05,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:52:05,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:52:05,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:52:05,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:52:05,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:52:05,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:52:05,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:52:05,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:52:05,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:52:05,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:52:05,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:52:05,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:52:05,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:52:05,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:52:05,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:52:05,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:52:05,322 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:52:05,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:52:05,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:52:05,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:52:05,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:52:05,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:52:05,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:52:05,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:52:05,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:52:05,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:05,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:52:05,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:52:05,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:52:05,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:52:05,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:52:05,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:52:05,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:52:05,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:52:05,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:52:05,330 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_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2024-11-08 16:52:05,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:52:05,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:52:05,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:52:05,653 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:52:05,653 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:52:05,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c Unable to find full path for "g++" [2024-11-08 16:52:07,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:52:07,887 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:52:07,888 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-08 16:52:07,897 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/data/99ca4f87c/f215b0026b674c77b47b59124a3b9f4b/FLAG1d6fd8eda [2024-11-08 16:52:08,228 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/data/99ca4f87c/f215b0026b674c77b47b59124a3b9f4b [2024-11-08 16:52:08,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:52:08,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:52:08,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:08,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:52:08,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:52:08,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f057668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08, skipping insertion in model container [2024-11-08 16:52:08,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:52:08,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:08,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:52:08,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:08,559 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:52:08,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08 WrapperNode [2024-11-08 16:52:08,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:08,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:08,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:52:08,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:52:08,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,611 INFO L138 Inliner]: procedures = 25, calls = 31, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 343 [2024-11-08 16:52:08,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:08,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:52:08,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:52:08,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:52:08,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,653 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-08 16:52:08,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:52:08,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:52:08,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:52:08,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:52:08,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (1/1) ... [2024-11-08 16:52:08,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:08,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:08,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:52:08,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:52:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:52:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-08 16:52:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-08 16:52:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-08 16:52:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-08 16:52:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-08 16:52:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-08 16:52:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:52:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:52:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:52:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:52:08,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:52:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:52:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:52:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:52:08,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:52:08,745 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 16:52:08,870 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:52:08,873 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:52:09,555 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:52:09,555 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:52:10,046 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:52:10,047 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:52:10,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:10 BoogieIcfgContainer [2024-11-08 16:52:10,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:52:10,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:52:10,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:52:10,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:52:10,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:52:08" (1/3) ... [2024-11-08 16:52:10,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4090778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:10, skipping insertion in model container [2024-11-08 16:52:10,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:08" (2/3) ... [2024-11-08 16:52:10,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4090778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:10, skipping insertion in model container [2024-11-08 16:52:10,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:10" (3/3) ... [2024-11-08 16:52:10,059 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-11-08 16:52:10,081 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:52:10,081 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-08 16:52:10,081 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:52:10,196 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 16:52:10,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 161 transitions, 343 flow [2024-11-08 16:52:10,328 INFO L124 PetriNetUnfolderBase]: 22/158 cut-off events. [2024-11-08 16:52:10,329 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:52:10,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 22/158 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 498 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2024-11-08 16:52:10,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 161 transitions, 343 flow [2024-11-08 16:52:10,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 157 transitions, 332 flow [2024-11-08 16:52:10,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:52:10,372 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;@40f135ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:52:10,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2024-11-08 16:52:10,377 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:52:10,378 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 16:52:10,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:52:10,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:10,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 16:52:10,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:10,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:10,386 INFO L85 PathProgramCache]: Analyzing trace with hash 33552635, now seen corresponding path program 1 times [2024-11-08 16:52:10,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:10,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613815995] [2024-11-08 16:52:10,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:10,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:10,766 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 16:52:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613815995] [2024-11-08 16:52:10,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613815995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:10,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:10,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:52:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891431348] [2024-11-08 16:52:10,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:10,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:52:10,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:10,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:52:10,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:10,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 161 [2024-11-08 16:52:10,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 157 transitions, 332 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 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 16:52:10,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:10,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 161 [2024-11-08 16:52:10,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:13,176 INFO L124 PetriNetUnfolderBase]: 6278/13470 cut-off events. [2024-11-08 16:52:13,177 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-08 16:52:13,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21798 conditions, 13470 events. 6278/13470 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 126212 event pairs, 4001 based on Foata normal form. 3/11243 useless extension candidates. Maximal degree in co-relation 20709. Up to 8033 conditions per place. [2024-11-08 16:52:13,323 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 61 selfloop transitions, 10 changer transitions 0/166 dead transitions. [2024-11-08 16:52:13,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 166 transitions, 492 flow [2024-11-08 16:52:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:52:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:52:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 469 transitions. [2024-11-08 16:52:13,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7282608695652174 [2024-11-08 16:52:13,341 INFO L175 Difference]: Start difference. First operand has 145 places, 157 transitions, 332 flow. Second operand 4 states and 469 transitions. [2024-11-08 16:52:13,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 166 transitions, 492 flow [2024-11-08 16:52:13,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 166 transitions, 480 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-08 16:52:13,360 INFO L231 Difference]: Finished difference. Result has 145 places, 166 transitions, 408 flow [2024-11-08 16:52:13,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=145, PETRI_TRANSITIONS=166} [2024-11-08 16:52:13,366 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2024-11-08 16:52:13,366 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 166 transitions, 408 flow [2024-11-08 16:52:13,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 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 16:52:13,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:13,367 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 16:52:13,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:52:13,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:13,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:13,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1589123578, now seen corresponding path program 1 times [2024-11-08 16:52:13,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:13,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245953071] [2024-11-08 16:52:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:13,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:13,518 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 16:52:13,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:13,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245953071] [2024-11-08 16:52:13,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245953071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:52:13,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125666749] [2024-11-08 16:52:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:13,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:13,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:13,522 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:52:13,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:52:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:13,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:52:13,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:52:13,691 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 16:52:13,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:52:13,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125666749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:13,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:52:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 16:52:13,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781812365] [2024-11-08 16:52:13,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:13,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:52:13,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:13,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:52:13,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:52:13,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 161 [2024-11-08 16:52:13,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 166 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 98.83333333333333) internal successors, (593), 6 states have internal predecessors, (593), 0 states have call successors, (0), 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 16:52:13,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:13,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 161 [2024-11-08 16:52:13,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:15,528 INFO L124 PetriNetUnfolderBase]: 6278/13467 cut-off events. [2024-11-08 16:52:15,528 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-08 16:52:15,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21630 conditions, 13467 events. 6278/13467 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 126151 event pairs, 4001 based on Foata normal form. 3/11240 useless extension candidates. Maximal degree in co-relation 21548. Up to 8018 conditions per place. [2024-11-08 16:52:15,706 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 51 selfloop transitions, 17 changer transitions 0/163 dead transitions. [2024-11-08 16:52:15,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 163 transitions, 532 flow [2024-11-08 16:52:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:52:15,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:52:15,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 659 transitions. [2024-11-08 16:52:15,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6821946169772257 [2024-11-08 16:52:15,712 INFO L175 Difference]: Start difference. First operand has 145 places, 166 transitions, 408 flow. Second operand 6 states and 659 transitions. [2024-11-08 16:52:15,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 163 transitions, 532 flow [2024-11-08 16:52:15,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 163 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:52:15,716 INFO L231 Difference]: Finished difference. Result has 147 places, 163 transitions, 430 flow [2024-11-08 16:52:15,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=147, PETRI_TRANSITIONS=163} [2024-11-08 16:52:15,717 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 2 predicate places. [2024-11-08 16:52:15,718 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 163 transitions, 430 flow [2024-11-08 16:52:15,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.83333333333333) internal successors, (593), 6 states have internal predecessors, (593), 0 states have call successors, (0), 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 16:52:15,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:15,718 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 16:52:15,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:52:15,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:15,921 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:15,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2018189460, now seen corresponding path program 1 times [2024-11-08 16:52:15,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:15,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473166985] [2024-11-08 16:52:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:16,075 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 16:52:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473166985] [2024-11-08 16:52:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473166985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:52:16,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159446799] [2024-11-08 16:52:16,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:16,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:16,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:16,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:52:16,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:52:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:16,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 16:52:16,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:52:16,194 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 16:52:16,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:52:16,248 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 16:52:16,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159446799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:52:16,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:52:16,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-08 16:52:16,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216301258] [2024-11-08 16:52:16,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:52:16,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:52:16,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:16,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:52:16,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:52:16,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 161 [2024-11-08 16:52:16,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 163 transitions, 430 flow. Second operand has 12 states, 12 states have (on average 99.08333333333333) internal successors, (1189), 12 states have internal predecessors, (1189), 0 states have call successors, (0), 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 16:52:16,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:16,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 161 [2024-11-08 16:52:16,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:18,271 INFO L124 PetriNetUnfolderBase]: 6296/13530 cut-off events. [2024-11-08 16:52:18,272 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-11-08 16:52:18,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21798 conditions, 13530 events. 6296/13530 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 126818 event pairs, 4001 based on Foata normal form. 9/11303 useless extension candidates. Maximal degree in co-relation 21550. Up to 8033 conditions per place. [2024-11-08 16:52:18,390 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 58 selfloop transitions, 37 changer transitions 0/190 dead transitions. [2024-11-08 16:52:18,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 190 transitions, 794 flow [2024-11-08 16:52:18,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:52:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 16:52:18,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1084 transitions. [2024-11-08 16:52:18,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6732919254658385 [2024-11-08 16:52:18,394 INFO L175 Difference]: Start difference. First operand has 147 places, 163 transitions, 430 flow. Second operand 10 states and 1084 transitions. [2024-11-08 16:52:18,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 190 transitions, 794 flow [2024-11-08 16:52:18,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 190 transitions, 711 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-08 16:52:18,401 INFO L231 Difference]: Finished difference. Result has 154 places, 190 transitions, 645 flow [2024-11-08 16:52:18,402 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=645, PETRI_PLACES=154, PETRI_TRANSITIONS=190} [2024-11-08 16:52:18,403 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2024-11-08 16:52:18,403 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 190 transitions, 645 flow [2024-11-08 16:52:18,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 99.08333333333333) internal successors, (1189), 12 states have internal predecessors, (1189), 0 states have call successors, (0), 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 16:52:18,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:18,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:18,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:52:18,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:18,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:18,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:18,678 INFO L85 PathProgramCache]: Analyzing trace with hash -624605917, now seen corresponding path program 1 times [2024-11-08 16:52:18,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:18,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913786591] [2024-11-08 16:52:18,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:18,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:18,829 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 16:52:18,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:18,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913786591] [2024-11-08 16:52:18,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913786591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:18,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:18,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:52:18,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607046798] [2024-11-08 16:52:18,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:18,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:52:18,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:52:18,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:18,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 161 [2024-11-08 16:52:18,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 190 transitions, 645 flow. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 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 16:52:18,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:18,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 161 [2024-11-08 16:52:18,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:21,236 INFO L124 PetriNetUnfolderBase]: 12351/22879 cut-off events. [2024-11-08 16:52:21,237 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2024-11-08 16:52:21,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39291 conditions, 22879 events. 12351/22879 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 205211 event pairs, 3633 based on Foata normal form. 544/20143 useless extension candidates. Maximal degree in co-relation 39184. Up to 7416 conditions per place. [2024-11-08 16:52:21,464 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 152 selfloop transitions, 5 changer transitions 0/249 dead transitions. [2024-11-08 16:52:21,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 249 transitions, 1081 flow [2024-11-08 16:52:21,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:52:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:52:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2024-11-08 16:52:21,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8012422360248447 [2024-11-08 16:52:21,469 INFO L175 Difference]: Start difference. First operand has 154 places, 190 transitions, 645 flow. Second operand 4 states and 516 transitions. [2024-11-08 16:52:21,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 249 transitions, 1081 flow [2024-11-08 16:52:21,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 249 transitions, 1044 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-08 16:52:21,482 INFO L231 Difference]: Finished difference. Result has 157 places, 192 transitions, 642 flow [2024-11-08 16:52:21,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=642, PETRI_PLACES=157, PETRI_TRANSITIONS=192} [2024-11-08 16:52:21,483 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 12 predicate places. [2024-11-08 16:52:21,483 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 192 transitions, 642 flow [2024-11-08 16:52:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 0 states have call successors, (0), 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 16:52:21,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:21,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:21,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:52:21,486 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:21,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:21,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2112054272, now seen corresponding path program 1 times [2024-11-08 16:52:21,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:21,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126814384] [2024-11-08 16:52:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:21,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:21,682 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 16:52:21,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:21,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126814384] [2024-11-08 16:52:21,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126814384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:21,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:21,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:52:21,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101182319] [2024-11-08 16:52:21,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:21,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:52:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:52:21,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:52:21,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 161 [2024-11-08 16:52:21,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 192 transitions, 642 flow. Second operand has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 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 16:52:21,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:21,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 161 [2024-11-08 16:52:21,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:24,281 INFO L124 PetriNetUnfolderBase]: 10652/23416 cut-off events. [2024-11-08 16:52:24,282 INFO L125 PetriNetUnfolderBase]: For 3038/3366 co-relation queries the response was YES. [2024-11-08 16:52:24,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39846 conditions, 23416 events. 10652/23416 cut-off events. For 3038/3366 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 231909 event pairs, 6314 based on Foata normal form. 371/20144 useless extension candidates. Maximal degree in co-relation 39668. Up to 11201 conditions per place. [2024-11-08 16:52:24,459 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 183 selfloop transitions, 27 changer transitions 0/301 dead transitions. [2024-11-08 16:52:24,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 301 transitions, 1412 flow [2024-11-08 16:52:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:52:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:52:24,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 746 transitions. [2024-11-08 16:52:24,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.772256728778468 [2024-11-08 16:52:24,463 INFO L175 Difference]: Start difference. First operand has 157 places, 192 transitions, 642 flow. Second operand 6 states and 746 transitions. [2024-11-08 16:52:24,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 301 transitions, 1412 flow [2024-11-08 16:52:24,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 301 transitions, 1412 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:52:24,475 INFO L231 Difference]: Finished difference. Result has 165 places, 206 transitions, 797 flow [2024-11-08 16:52:24,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=797, PETRI_PLACES=165, PETRI_TRANSITIONS=206} [2024-11-08 16:52:24,477 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 20 predicate places. [2024-11-08 16:52:24,477 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 206 transitions, 797 flow [2024-11-08 16:52:24,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.2) internal successors, (496), 5 states have internal predecessors, (496), 0 states have call successors, (0), 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 16:52:24,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:24,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:24,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:52:24,478 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:24,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:24,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1051413704, now seen corresponding path program 1 times [2024-11-08 16:52:24,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:24,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032222892] [2024-11-08 16:52:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:24,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:24,579 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 16:52:24,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:24,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032222892] [2024-11-08 16:52:24,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032222892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:24,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:24,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:52:24,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882956867] [2024-11-08 16:52:24,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:24,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:52:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:52:24,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:24,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 161 [2024-11-08 16:52:24,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 206 transitions, 797 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 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 16:52:24,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:24,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 161 [2024-11-08 16:52:24,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:28,423 INFO L124 PetriNetUnfolderBase]: 20483/37555 cut-off events. [2024-11-08 16:52:28,423 INFO L125 PetriNetUnfolderBase]: For 9871/10694 co-relation queries the response was YES. [2024-11-08 16:52:28,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73248 conditions, 37555 events. 20483/37555 cut-off events. For 9871/10694 co-relation queries the response was YES. Maximal size of possible extension queue 1215. Compared 342971 event pairs, 6591 based on Foata normal form. 1168/34387 useless extension candidates. Maximal degree in co-relation 73062. Up to 12964 conditions per place. [2024-11-08 16:52:28,691 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 168 selfloop transitions, 5 changer transitions 0/271 dead transitions. [2024-11-08 16:52:28,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 271 transitions, 1337 flow [2024-11-08 16:52:28,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:52:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:52:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 514 transitions. [2024-11-08 16:52:28,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7981366459627329 [2024-11-08 16:52:28,694 INFO L175 Difference]: Start difference. First operand has 165 places, 206 transitions, 797 flow. Second operand 4 states and 514 transitions. [2024-11-08 16:52:28,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 271 transitions, 1337 flow [2024-11-08 16:52:28,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 271 transitions, 1337 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:52:28,846 INFO L231 Difference]: Finished difference. Result has 170 places, 208 transitions, 831 flow [2024-11-08 16:52:28,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=831, PETRI_PLACES=170, PETRI_TRANSITIONS=208} [2024-11-08 16:52:28,848 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 25 predicate places. [2024-11-08 16:52:28,848 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 208 transitions, 831 flow [2024-11-08 16:52:28,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 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 16:52:28,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:28,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:28,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:52:28,849 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:28,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1765912297, now seen corresponding path program 1 times [2024-11-08 16:52:28,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:28,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767976497] [2024-11-08 16:52:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:28,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:28,995 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 16:52:28,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:28,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767976497] [2024-11-08 16:52:28,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767976497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:28,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:28,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:52:28,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901644203] [2024-11-08 16:52:28,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:28,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:52:28,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:28,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:52:28,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:52:29,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 161 [2024-11-08 16:52:29,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 208 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 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 16:52:29,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:29,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 161 [2024-11-08 16:52:29,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:32,060 INFO L124 PetriNetUnfolderBase]: 11674/25081 cut-off events. [2024-11-08 16:52:32,061 INFO L125 PetriNetUnfolderBase]: For 8593/9870 co-relation queries the response was YES. [2024-11-08 16:52:32,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47562 conditions, 25081 events. 11674/25081 cut-off events. For 8593/9870 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 252241 event pairs, 7541 based on Foata normal form. 611/22047 useless extension candidates. Maximal degree in co-relation 47363. Up to 14336 conditions per place. [2024-11-08 16:52:32,243 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 170 selfloop transitions, 27 changer transitions 0/288 dead transitions. [2024-11-08 16:52:32,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 288 transitions, 1515 flow [2024-11-08 16:52:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:52:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:52:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2024-11-08 16:52:32,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7567287784679089 [2024-11-08 16:52:32,246 INFO L175 Difference]: Start difference. First operand has 170 places, 208 transitions, 831 flow. Second operand 6 states and 731 transitions. [2024-11-08 16:52:32,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 288 transitions, 1515 flow [2024-11-08 16:52:32,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 288 transitions, 1515 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:52:32,301 INFO L231 Difference]: Finished difference. Result has 177 places, 210 transitions, 906 flow [2024-11-08 16:52:32,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=906, PETRI_PLACES=177, PETRI_TRANSITIONS=210} [2024-11-08 16:52:32,302 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 32 predicate places. [2024-11-08 16:52:32,302 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 210 transitions, 906 flow [2024-11-08 16:52:32,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 99.6) internal successors, (498), 5 states have internal predecessors, (498), 0 states have call successors, (0), 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 16:52:32,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:32,303 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:32,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:52:32,303 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash 812000039, now seen corresponding path program 1 times [2024-11-08 16:52:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:32,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074434036] [2024-11-08 16:52:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:32,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:32,391 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 16:52:32,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:32,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074434036] [2024-11-08 16:52:32,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074434036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:32,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:32,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:52:32,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107342958] [2024-11-08 16:52:32,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:32,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:52:32,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:32,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:52:32,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:32,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-08 16:52:32,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 210 transitions, 906 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 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 16:52:32,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:32,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-08 16:52:32,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:37,502 INFO L124 PetriNetUnfolderBase]: 23226/42581 cut-off events. [2024-11-08 16:52:37,502 INFO L125 PetriNetUnfolderBase]: For 20943/23997 co-relation queries the response was YES. [2024-11-08 16:52:37,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90966 conditions, 42581 events. 23226/42581 cut-off events. For 20943/23997 co-relation queries the response was YES. Maximal size of possible extension queue 1668. Compared 401907 event pairs, 7030 based on Foata normal form. 2132/39832 useless extension candidates. Maximal degree in co-relation 90770. Up to 13258 conditions per place. [2024-11-08 16:52:37,854 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 172 selfloop transitions, 10 changer transitions 0/274 dead transitions. [2024-11-08 16:52:37,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 274 transitions, 1522 flow [2024-11-08 16:52:37,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:52:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:52:37,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-08 16:52:37,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-11-08 16:52:37,857 INFO L175 Difference]: Start difference. First operand has 177 places, 210 transitions, 906 flow. Second operand 4 states and 490 transitions. [2024-11-08 16:52:37,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 274 transitions, 1522 flow [2024-11-08 16:52:38,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 274 transitions, 1479 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:52:38,076 INFO L231 Difference]: Finished difference. Result has 178 places, 214 transitions, 929 flow [2024-11-08 16:52:38,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=929, PETRI_PLACES=178, PETRI_TRANSITIONS=214} [2024-11-08 16:52:38,077 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 33 predicate places. [2024-11-08 16:52:38,077 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 214 transitions, 929 flow [2024-11-08 16:52:38,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 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 16:52:38,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:38,078 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:38,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:52:38,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:38,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:38,079 INFO L85 PathProgramCache]: Analyzing trace with hash -597801292, now seen corresponding path program 1 times [2024-11-08 16:52:38,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:38,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522948386] [2024-11-08 16:52:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:38,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:38,182 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 16:52:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522948386] [2024-11-08 16:52:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522948386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:38,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:38,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:52:38,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768494105] [2024-11-08 16:52:38,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:38,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:52:38,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:52:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:52:38,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 161 [2024-11-08 16:52:38,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 214 transitions, 929 flow. Second operand has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 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 16:52:38,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:38,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 161 [2024-11-08 16:52:38,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:42,330 INFO L124 PetriNetUnfolderBase]: 14948/31981 cut-off events. [2024-11-08 16:52:42,331 INFO L125 PetriNetUnfolderBase]: For 18189/20804 co-relation queries the response was YES. [2024-11-08 16:52:42,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68339 conditions, 31981 events. 14948/31981 cut-off events. For 18189/20804 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 341069 event pairs, 10521 based on Foata normal form. 950/29319 useless extension candidates. Maximal degree in co-relation 68134. Up to 19080 conditions per place. [2024-11-08 16:52:42,725 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 149 selfloop transitions, 27 changer transitions 0/267 dead transitions. [2024-11-08 16:52:42,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 267 transitions, 1525 flow [2024-11-08 16:52:42,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:52:42,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:52:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 706 transitions. [2024-11-08 16:52:42,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7308488612836439 [2024-11-08 16:52:42,728 INFO L175 Difference]: Start difference. First operand has 178 places, 214 transitions, 929 flow. Second operand 6 states and 706 transitions. [2024-11-08 16:52:42,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 267 transitions, 1525 flow [2024-11-08 16:52:42,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 267 transitions, 1525 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:52:42,988 INFO L231 Difference]: Finished difference. Result has 185 places, 216 transitions, 1004 flow [2024-11-08 16:52:42,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=929, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1004, PETRI_PLACES=185, PETRI_TRANSITIONS=216} [2024-11-08 16:52:42,989 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 40 predicate places. [2024-11-08 16:52:42,990 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 216 transitions, 1004 flow [2024-11-08 16:52:42,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 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 16:52:42,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:42,990 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-08 16:52:42,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:52:42,991 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:42,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1377710741, now seen corresponding path program 2 times [2024-11-08 16:52:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:42,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560837270] [2024-11-08 16:52:42,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:42,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:43,173 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:52:43,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:43,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560837270] [2024-11-08 16:52:43,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560837270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:52:43,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894132258] [2024-11-08 16:52:43,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:52:43,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:43,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:43,177 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:52:43,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:52:43,255 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:52:43,255 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:52:43,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:52:43,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:52:43,355 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:52:43,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:52:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 16:52:43,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894132258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:52:43,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:52:43,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 13 [2024-11-08 16:52:43,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83816123] [2024-11-08 16:52:43,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:52:43,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:52:43,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:43,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:52:43,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:52:43,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 161 [2024-11-08 16:52:43,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 216 transitions, 1004 flow. Second operand has 15 states, 15 states have (on average 90.53333333333333) internal successors, (1358), 15 states have internal predecessors, (1358), 0 states have call successors, (0), 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 16:52:43,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:43,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 161 [2024-11-08 16:52:43,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:52:48,101 INFO L124 PetriNetUnfolderBase]: 14317/30718 cut-off events. [2024-11-08 16:52:48,101 INFO L125 PetriNetUnfolderBase]: For 18734/21375 co-relation queries the response was YES. [2024-11-08 16:52:48,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66515 conditions, 30718 events. 14317/30718 cut-off events. For 18734/21375 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 322152 event pairs, 9982 based on Foata normal form. 917/28239 useless extension candidates. Maximal degree in co-relation 66078. Up to 18413 conditions per place. [2024-11-08 16:52:48,383 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 104 selfloop transitions, 94 changer transitions 0/284 dead transitions. [2024-11-08 16:52:48,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 284 transitions, 1710 flow [2024-11-08 16:52:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 16:52:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-08 16:52:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2581 transitions. [2024-11-08 16:52:48,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5937428111341155 [2024-11-08 16:52:48,392 INFO L175 Difference]: Start difference. First operand has 185 places, 216 transitions, 1004 flow. Second operand 27 states and 2581 transitions. [2024-11-08 16:52:48,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 284 transitions, 1710 flow [2024-11-08 16:52:48,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 284 transitions, 1657 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:52:48,588 INFO L231 Difference]: Finished difference. Result has 210 places, 258 transitions, 1418 flow [2024-11-08 16:52:48,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1418, PETRI_PLACES=210, PETRI_TRANSITIONS=258} [2024-11-08 16:52:48,589 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 65 predicate places. [2024-11-08 16:52:48,589 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 258 transitions, 1418 flow [2024-11-08 16:52:48,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 90.53333333333333) internal successors, (1358), 15 states have internal predecessors, (1358), 0 states have call successors, (0), 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 16:52:48,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:52:48,590 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, 1, 1, 1, 1] [2024-11-08 16:52:48,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:52:48,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 16:52:48,794 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-08 16:52:48,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:48,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2017472389, now seen corresponding path program 1 times [2024-11-08 16:52:48,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:48,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379800384] [2024-11-08 16:52:48,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:48,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:49,614 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 16:52:49,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:49,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379800384] [2024-11-08 16:52:49,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379800384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:52:49,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073603994] [2024-11-08 16:52:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:49,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:52:49,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:49,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:52:49,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1596c7f-bd3e-405f-aa54-aa9cf088c4bd/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:52:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:49,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 16:52:49,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:52:49,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 16:52:49,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 16:52:49,906 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-08 16:52:49,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-08 16:52:49,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 16:52:50,020 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 16:52:50,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 16:52:50,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-08 16:52:50,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-08 16:52:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:52:50,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:52:50,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:52:50,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2024-11-08 16:52:50,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:52:50,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 69 [2024-11-08 16:52:50,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2024-11-08 16:52:50,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2024-11-08 16:52:50,885 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 16:52:50,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073603994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:52:50,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:52:50,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2024-11-08 16:52:50,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050289047] [2024-11-08 16:52:50,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:52:50,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 16:52:50,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:50,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 16:52:50,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=546, Unknown=6, NotChecked=0, Total=650 [2024-11-08 16:52:50,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 161 [2024-11-08 16:52:50,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 258 transitions, 1418 flow. Second operand has 26 states, 26 states have (on average 85.46153846153847) internal successors, (2222), 26 states have internal predecessors, (2222), 0 states have call successors, (0), 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 16:52:50,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:52:50,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 161 [2024-11-08 16:52:50,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand