./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/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_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/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_0465fab2-2783-4a29-9146-019dd96b441d/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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:04:17,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:04:17,691 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:04:17,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:04:17,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:04:17,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:04:17,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:04:17,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:04:17,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:04:17,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:04:17,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:04:17,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:04:17,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:04:17,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:04:17,758 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:04:17,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:04:17,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:04:17,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:04:17,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:04:17,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:04:17,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:04:17,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:04:17,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:04:17,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:04:17,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:04:17,768 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:04:17,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:04:17,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:04:17,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:04:17,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:04:17,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:04:17,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:04:17,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:04:17,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:04:17,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:17,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:04:17,780 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:04:17,781 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:04:17,781 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:04:17,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:04:17,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:04:17,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:04:17,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:04:17,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:04:17,785 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_0465fab2-2783-4a29-9146-019dd96b441d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-11-08 18:04:18,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:04:18,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:04:18,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:04:18,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:04:18,196 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:04:18,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i Unable to find full path for "g++" [2024-11-08 18:04:20,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:04:20,982 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:04:20,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-11-08 18:04:21,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/data/762bd508a/7a609c56c48543ae8d70b0c8e0091599/FLAG0ca547e1a [2024-11-08 18:04:21,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/data/762bd508a/7a609c56c48543ae8d70b0c8e0091599 [2024-11-08 18:04:21,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:04:21,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:04:21,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:21,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:04:21,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:04:21,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:21" (1/1) ... [2024-11-08 18:04:21,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48bd05d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:21, skipping insertion in model container [2024-11-08 18:04:21,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:04:21" (1/1) ... [2024-11-08 18:04:21,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:04:22,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:22,118 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:04:22,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:04:22,301 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:04:22,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22 WrapperNode [2024-11-08 18:04:22,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:04:22,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:22,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:04:22,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:04:22,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,391 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 282 [2024-11-08 18:04:22,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:04:22,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:04:22,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:04:22,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:04:22,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,415 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,441 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 70, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-08 18:04:22,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:04:22,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:04:22,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:04:22,480 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:04:22,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (1/1) ... [2024-11-08 18:04:22,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:04:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:22,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:04:22,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:04:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:04:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:04:22,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:04:22,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:04:22,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:04:22,588 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:04:22,589 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:04:22,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:04:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:04:22,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:04:22,594 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 18:04:22,866 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:04:22,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:04:23,532 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:04:23,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:04:24,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:04:24,410 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 18:04:24,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:04:24 BoogieIcfgContainer [2024-11-08 18:04:24,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:04:24,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:04:24,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:04:24,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:04:24,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:04:21" (1/3) ... [2024-11-08 18:04:24,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fc3ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:04:24, skipping insertion in model container [2024-11-08 18:04:24,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:04:22" (2/3) ... [2024-11-08 18:04:24,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75fc3ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:04:24, skipping insertion in model container [2024-11-08 18:04:24,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:04:24" (3/3) ... [2024-11-08 18:04:24,427 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-11-08 18:04:24,452 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:04:24,452 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-08 18:04:24,453 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:04:24,545 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:04:24,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 124 transitions, 255 flow [2024-11-08 18:04:24,705 INFO L124 PetriNetUnfolderBase]: 40/177 cut-off events. [2024-11-08 18:04:24,705 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:04:24,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 40/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 660 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 106. Up to 8 conditions per place. [2024-11-08 18:04:24,714 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 124 transitions, 255 flow [2024-11-08 18:04:24,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 123 transitions, 253 flow [2024-11-08 18:04:24,743 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:04:24,755 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;@bd0f51f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:04:24,756 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 18:04:24,765 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:04:24,766 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 18:04:24,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:04:24,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:24,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 18:04:24,768 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:24,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 22880179, now seen corresponding path program 1 times [2024-11-08 18:04:24,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603027032] [2024-11-08 18:04:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:25,378 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 18:04:25,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:25,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603027032] [2024-11-08 18:04:25,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603027032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:25,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:25,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:04:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281587256] [2024-11-08 18:04:25,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:25,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:25,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:25,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 124 [2024-11-08 18:04:25,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 123 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:04:25,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:25,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 124 [2024-11-08 18:04:25,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:26,204 INFO L124 PetriNetUnfolderBase]: 484/1500 cut-off events. [2024-11-08 18:04:26,205 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:04:26,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2441 conditions, 1500 events. 484/1500 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10274 event pairs, 420 based on Foata normal form. 278/1622 useless extension candidates. Maximal degree in co-relation 2339. Up to 934 conditions per place. [2024-11-08 18:04:26,229 INFO L140 encePairwiseOnDemand]: 97/124 looper letters, 50 selfloop transitions, 3 changer transitions 0/105 dead transitions. [2024-11-08 18:04:26,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 105 transitions, 323 flow [2024-11-08 18:04:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 285 transitions. [2024-11-08 18:04:26,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5745967741935484 [2024-11-08 18:04:26,255 INFO L175 Difference]: Start difference. First operand has 100 places, 123 transitions, 253 flow. Second operand 4 states and 285 transitions. [2024-11-08 18:04:26,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 105 transitions, 323 flow [2024-11-08 18:04:26,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 105 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:26,268 INFO L231 Difference]: Finished difference. Result has 105 places, 105 transitions, 239 flow [2024-11-08 18:04:26,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=105, PETRI_TRANSITIONS=105} [2024-11-08 18:04:26,278 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-08 18:04:26,279 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 105 transitions, 239 flow [2024-11-08 18:04:26,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:04:26,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:26,280 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 18:04:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:04:26,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:26,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -888519258, now seen corresponding path program 1 times [2024-11-08 18:04:26,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:26,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586482530] [2024-11-08 18:04:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:26,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:26,481 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 18:04:26,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:26,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586482530] [2024-11-08 18:04:26,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586482530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:26,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655791636] [2024-11-08 18:04:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:26,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:26,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:26,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:26,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:04:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:26,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:04:26,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:26,745 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 18:04:26,746 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:26,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655791636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:26,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:26,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:04:26,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523815063] [2024-11-08 18:04:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:26,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:26,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:04:26,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 124 [2024-11-08 18:04:26,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:04:26,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:26,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 124 [2024-11-08 18:04:26,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:27,303 INFO L124 PetriNetUnfolderBase]: 484/1499 cut-off events. [2024-11-08 18:04:27,304 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 18:04:27,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2452 conditions, 1499 events. 484/1499 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10284 event pairs, 420 based on Foata normal form. 1/1344 useless extension candidates. Maximal degree in co-relation 2433. Up to 927 conditions per place. [2024-11-08 18:04:27,315 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 46 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-08 18:04:27,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 104 transitions, 339 flow [2024-11-08 18:04:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:27,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2024-11-08 18:04:27,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4905913978494624 [2024-11-08 18:04:27,319 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 239 flow. Second operand 6 states and 365 transitions. [2024-11-08 18:04:27,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 104 transitions, 339 flow [2024-11-08 18:04:27,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 104 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:04:27,323 INFO L231 Difference]: Finished difference. Result has 108 places, 104 transitions, 245 flow [2024-11-08 18:04:27,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=245, PETRI_PLACES=108, PETRI_TRANSITIONS=104} [2024-11-08 18:04:27,324 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-11-08 18:04:27,325 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 104 transitions, 245 flow [2024-11-08 18:04:27,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:04:27,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:27,326 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 18:04:27,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:04:27,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:27,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:27,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:27,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1774292415, now seen corresponding path program 1 times [2024-11-08 18:04:27,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:27,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042683797] [2024-11-08 18:04:27,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:27,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:27,639 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:04:27,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:27,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042683797] [2024-11-08 18:04:27,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042683797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:27,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:27,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:27,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382617635] [2024-11-08 18:04:27,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:27,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:27,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:27,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:27,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2024-11-08 18:04:27,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:04:27,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:27,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2024-11-08 18:04:27,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:28,099 INFO L124 PetriNetUnfolderBase]: 483/1497 cut-off events. [2024-11-08 18:04:28,100 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 18:04:28,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 1497 events. 483/1497 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10262 event pairs, 420 based on Foata normal form. 2/1345 useless extension candidates. Maximal degree in co-relation 2427. Up to 930 conditions per place. [2024-11-08 18:04:28,110 INFO L140 encePairwiseOnDemand]: 118/124 looper letters, 46 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-08 18:04:28,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 103 transitions, 343 flow [2024-11-08 18:04:28,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:28,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:28,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 256 transitions. [2024-11-08 18:04:28,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-11-08 18:04:28,113 INFO L175 Difference]: Start difference. First operand has 108 places, 104 transitions, 245 flow. Second operand 4 states and 256 transitions. [2024-11-08 18:04:28,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 103 transitions, 343 flow [2024-11-08 18:04:28,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 333 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:04:28,118 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 247 flow [2024-11-08 18:04:28,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2024-11-08 18:04:28,119 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2024-11-08 18:04:28,120 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 247 flow [2024-11-08 18:04:28,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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 18:04:28,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:28,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:28,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:04:28,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:28,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1382770383, now seen corresponding path program 1 times [2024-11-08 18:04:28,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:28,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157479153] [2024-11-08 18:04:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:28,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:28,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157479153] [2024-11-08 18:04:28,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157479153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:28,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344816512] [2024-11-08 18:04:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:28,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:28,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:28,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:28,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:04:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:28,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:04:28,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:28,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:28,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344816512] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:28,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:28,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:04:28,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31547752] [2024-11-08 18:04:28,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:28,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:04:28,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:28,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:04:28,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:04:28,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2024-11-08 18:04:28,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 247 flow. Second operand has 10 states, 10 states have (on average 52.7) internal successors, (527), 10 states have internal predecessors, (527), 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 18:04:28,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:28,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2024-11-08 18:04:28,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:29,161 INFO L124 PetriNetUnfolderBase]: 483/1502 cut-off events. [2024-11-08 18:04:29,161 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-08 18:04:29,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1502 events. 483/1502 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10233 event pairs, 420 based on Foata normal form. 2/1350 useless extension candidates. Maximal degree in co-relation 2419. Up to 929 conditions per place. [2024-11-08 18:04:29,171 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 49 selfloop transitions, 7 changer transitions 0/107 dead transitions. [2024-11-08 18:04:29,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 107 transitions, 384 flow [2024-11-08 18:04:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:04:29,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:04:29,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 415 transitions. [2024-11-08 18:04:29,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.478110599078341 [2024-11-08 18:04:29,174 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 247 flow. Second operand 7 states and 415 transitions. [2024-11-08 18:04:29,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 107 transitions, 384 flow [2024-11-08 18:04:29,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 107 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:04:29,181 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 285 flow [2024-11-08 18:04:29,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=285, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2024-11-08 18:04:29,182 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2024-11-08 18:04:29,182 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 285 flow [2024-11-08 18:04:29,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 52.7) internal successors, (527), 10 states have internal predecessors, (527), 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 18:04:29,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:29,183 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:29,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:04:29,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-08 18:04:29,391 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:29,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:29,392 INFO L85 PathProgramCache]: Analyzing trace with hash 532606359, now seen corresponding path program 2 times [2024-11-08 18:04:29,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:29,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97584090] [2024-11-08 18:04:29,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:29,572 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:04:29,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:29,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97584090] [2024-11-08 18:04:29,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97584090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:29,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:29,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:29,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621743517] [2024-11-08 18:04:29,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:29,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:29,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:29,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:29,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:29,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 124 [2024-11-08 18:04:29,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 18:04:29,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:29,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 124 [2024-11-08 18:04:29,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:30,059 INFO L124 PetriNetUnfolderBase]: 545/1529 cut-off events. [2024-11-08 18:04:30,059 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 18:04:30,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1529 events. 545/1529 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10038 event pairs, 0 based on Foata normal form. 22/1417 useless extension candidates. Maximal degree in co-relation 2550. Up to 973 conditions per place. [2024-11-08 18:04:30,102 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 93 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-08 18:04:30,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 145 transitions, 555 flow [2024-11-08 18:04:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:30,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-08 18:04:30,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2024-11-08 18:04:30,105 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 285 flow. Second operand 4 states and 296 transitions. [2024-11-08 18:04:30,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 145 transitions, 555 flow [2024-11-08 18:04:30,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 145 transitions, 549 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 18:04:30,113 INFO L231 Difference]: Finished difference. Result has 114 places, 104 transitions, 287 flow [2024-11-08 18:04:30,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=287, PETRI_PLACES=114, PETRI_TRANSITIONS=104} [2024-11-08 18:04:30,114 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2024-11-08 18:04:30,115 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 104 transitions, 287 flow [2024-11-08 18:04:30,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 18:04:30,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:30,116 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:30,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:04:30,116 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:30,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:30,117 INFO L85 PathProgramCache]: Analyzing trace with hash 734466496, now seen corresponding path program 1 times [2024-11-08 18:04:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:30,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131775734] [2024-11-08 18:04:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:30,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:04:30,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131775734] [2024-11-08 18:04:30,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131775734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:30,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:30,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030924284] [2024-11-08 18:04:30,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:30,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:30,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:30,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 124 [2024-11-08 18:04:30,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 104 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:04:30,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:30,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 124 [2024-11-08 18:04:30,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:30,765 INFO L124 PetriNetUnfolderBase]: 467/1326 cut-off events. [2024-11-08 18:04:30,765 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-08 18:04:30,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1326 events. 467/1326 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9296 event pairs, 0 based on Foata normal form. 22/1230 useless extension candidates. Maximal degree in co-relation 2273. Up to 818 conditions per place. [2024-11-08 18:04:30,776 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 91 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-08 18:04:30,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 145 transitions, 561 flow [2024-11-08 18:04:30,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:30,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:30,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2024-11-08 18:04:30,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6189516129032258 [2024-11-08 18:04:30,779 INFO L175 Difference]: Start difference. First operand has 114 places, 104 transitions, 287 flow. Second operand 4 states and 307 transitions. [2024-11-08 18:04:30,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 145 transitions, 561 flow [2024-11-08 18:04:30,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 145 transitions, 551 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:04:30,784 INFO L231 Difference]: Finished difference. Result has 113 places, 103 transitions, 285 flow [2024-11-08 18:04:30,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=113, PETRI_TRANSITIONS=103} [2024-11-08 18:04:30,785 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 13 predicate places. [2024-11-08 18:04:30,785 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 285 flow [2024-11-08 18:04:30,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:04:30,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:30,786 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:30,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:04:30,786 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:30,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1293625734, now seen corresponding path program 1 times [2024-11-08 18:04:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:30,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590132605] [2024-11-08 18:04:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:04:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:30,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590132605] [2024-11-08 18:04:30,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590132605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:30,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:30,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:30,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938445686] [2024-11-08 18:04:30,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:30,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:30,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 124 [2024-11-08 18:04:30,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:04:30,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:30,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 124 [2024-11-08 18:04:30,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:31,399 INFO L124 PetriNetUnfolderBase]: 478/1440 cut-off events. [2024-11-08 18:04:31,399 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-08 18:04:31,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 1440 events. 478/1440 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9760 event pairs, 337 based on Foata normal form. 22/1326 useless extension candidates. Maximal degree in co-relation 2404. Up to 782 conditions per place. [2024-11-08 18:04:31,410 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 90 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2024-11-08 18:04:31,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 144 transitions, 553 flow [2024-11-08 18:04:31,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 306 transitions. [2024-11-08 18:04:31,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6169354838709677 [2024-11-08 18:04:31,412 INFO L175 Difference]: Start difference. First operand has 113 places, 103 transitions, 285 flow. Second operand 4 states and 306 transitions. [2024-11-08 18:04:31,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 144 transitions, 553 flow [2024-11-08 18:04:31,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 144 transitions, 547 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:04:31,416 INFO L231 Difference]: Finished difference. Result has 112 places, 102 transitions, 283 flow [2024-11-08 18:04:31,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=283, PETRI_PLACES=112, PETRI_TRANSITIONS=102} [2024-11-08 18:04:31,418 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2024-11-08 18:04:31,418 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 102 transitions, 283 flow [2024-11-08 18:04:31,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 18:04:31,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:31,419 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:31,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:04:31,420 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:31,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:31,420 INFO L85 PathProgramCache]: Analyzing trace with hash 641023433, now seen corresponding path program 1 times [2024-11-08 18:04:31,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:31,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805435297] [2024-11-08 18:04:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:31,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:31,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805435297] [2024-11-08 18:04:31,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805435297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:31,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114176825] [2024-11-08 18:04:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:31,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:31,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:31,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:31,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:04:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:31,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:04:31,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:31,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:31,854 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:31,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114176825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:31,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:32,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 18:04:32,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052459947] [2024-11-08 18:04:32,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:32,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:04:32,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:04:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:04:32,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2024-11-08 18:04:32,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 102 transitions, 283 flow. Second operand has 18 states, 18 states have (on average 52.666666666666664) internal successors, (948), 18 states have internal predecessors, (948), 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 18:04:32,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:32,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2024-11-08 18:04:32,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:32,663 INFO L124 PetriNetUnfolderBase]: 483/1489 cut-off events. [2024-11-08 18:04:32,663 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-08 18:04:32,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2571 conditions, 1489 events. 483/1489 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9952 event pairs, 420 based on Foata normal form. 4/1350 useless extension candidates. Maximal degree in co-relation 2439. Up to 907 conditions per place. [2024-11-08 18:04:32,674 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 53 selfloop transitions, 15 changer transitions 0/115 dead transitions. [2024-11-08 18:04:32,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 115 transitions, 529 flow [2024-11-08 18:04:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:04:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:04:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 837 transitions. [2024-11-08 18:04:32,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-08 18:04:32,678 INFO L175 Difference]: Start difference. First operand has 112 places, 102 transitions, 283 flow. Second operand 15 states and 837 transitions. [2024-11-08 18:04:32,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 115 transitions, 529 flow [2024-11-08 18:04:32,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 115 transitions, 523 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:04:32,682 INFO L231 Difference]: Finished difference. Result has 128 places, 111 transitions, 411 flow [2024-11-08 18:04:32,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=411, PETRI_PLACES=128, PETRI_TRANSITIONS=111} [2024-11-08 18:04:32,684 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 28 predicate places. [2024-11-08 18:04:32,684 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 111 transitions, 411 flow [2024-11-08 18:04:32,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 52.666666666666664) internal successors, (948), 18 states have internal predecessors, (948), 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 18:04:32,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:32,686 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:32,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:04:32,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:32,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:32,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1637855595, now seen corresponding path program 2 times [2024-11-08 18:04:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:32,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350936678] [2024-11-08 18:04:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:33,484 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:33,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350936678] [2024-11-08 18:04:33,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350936678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:33,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715411812] [2024-11-08 18:04:33,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:04:33,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:33,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:33,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:33,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:04:33,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:04:33,655 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:04:33,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:04:33,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:33,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:04:34,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715411812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:34,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:34,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 18:04:34,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39996595] [2024-11-08 18:04:34,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:34,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:04:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:34,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:04:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:04:34,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2024-11-08 18:04:34,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 111 transitions, 411 flow. Second operand has 23 states, 23 states have (on average 52.69565217391305) internal successors, (1212), 23 states have internal predecessors, (1212), 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 18:04:34,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:34,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2024-11-08 18:04:34,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:34,940 INFO L124 PetriNetUnfolderBase]: 485/1497 cut-off events. [2024-11-08 18:04:34,940 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-08 18:04:34,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2602 conditions, 1497 events. 485/1497 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9932 event pairs, 420 based on Foata normal form. 3/1356 useless extension candidates. Maximal degree in co-relation 2374. Up to 908 conditions per place. [2024-11-08 18:04:34,954 INFO L140 encePairwiseOnDemand]: 119/124 looper letters, 56 selfloop transitions, 21 changer transitions 0/124 dead transitions. [2024-11-08 18:04:34,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 124 transitions, 709 flow [2024-11-08 18:04:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 18:04:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 18:04:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1151 transitions. [2024-11-08 18:04:34,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44201228878648235 [2024-11-08 18:04:34,960 INFO L175 Difference]: Start difference. First operand has 128 places, 111 transitions, 411 flow. Second operand 21 states and 1151 transitions. [2024-11-08 18:04:34,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 124 transitions, 709 flow [2024-11-08 18:04:34,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 124 transitions, 669 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-08 18:04:34,966 INFO L231 Difference]: Finished difference. Result has 148 places, 118 transitions, 517 flow [2024-11-08 18:04:34,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=517, PETRI_PLACES=148, PETRI_TRANSITIONS=118} [2024-11-08 18:04:34,969 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 48 predicate places. [2024-11-08 18:04:34,969 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 118 transitions, 517 flow [2024-11-08 18:04:34,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 52.69565217391305) internal successors, (1212), 23 states have internal predecessors, (1212), 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 18:04:34,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:34,972 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:34,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:04:35,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:35,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 18:04:35,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -147066002, now seen corresponding path program 3 times [2024-11-08 18:04:35,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:35,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720320255] [2024-11-08 18:04:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:35,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:04:35,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:04:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:04:35,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:04:35,324 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:04:35,325 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-08 18:04:35,328 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-08 18:04:35,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-08 18:04:35,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-08 18:04:35,329 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-08 18:04:35,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-08 18:04:35,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-08 18:04:35,330 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-08 18:04:35,331 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-08 18:04:35,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-08 18:04:35,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-08 18:04:35,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-08 18:04:35,333 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-08 18:04:35,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:04:35,333 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2024-11-08 18:04:35,341 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:04:35,341 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:04:35,400 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:04:35,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 174 transitions, 364 flow [2024-11-08 18:04:35,450 INFO L124 PetriNetUnfolderBase]: 67/302 cut-off events. [2024-11-08 18:04:35,451 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:04:35,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 302 events. 67/302 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1313 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 179. Up to 12 conditions per place. [2024-11-08 18:04:35,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 174 transitions, 364 flow [2024-11-08 18:04:35,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 174 transitions, 364 flow [2024-11-08 18:04:35,461 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:04:35,463 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;@bd0f51f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:04:35,463 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-08 18:04:35,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:04:35,467 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 18:04:35,467 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:04:35,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:35,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 18:04:35,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:04:35,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:35,468 INFO L85 PathProgramCache]: Analyzing trace with hash 28236595, now seen corresponding path program 1 times [2024-11-08 18:04:35,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:35,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208591979] [2024-11-08 18:04:35,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:35,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:35,568 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 18:04:35,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:35,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208591979] [2024-11-08 18:04:35,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208591979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:35,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:35,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:04:35,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959450801] [2024-11-08 18:04:35,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:35,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:35,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:35,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2024-11-08 18:04:35,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 174 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 18:04:35,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:35,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2024-11-08 18:04:35,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:42,295 INFO L124 PetriNetUnfolderBase]: 20134/42213 cut-off events. [2024-11-08 18:04:42,296 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-08 18:04:42,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72136 conditions, 42213 events. 20134/42213 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 432480 event pairs, 18580 based on Foata normal form. 9019/47556 useless extension candidates. Maximal degree in co-relation 56545. Up to 29809 conditions per place. [2024-11-08 18:04:42,624 INFO L140 encePairwiseOnDemand]: 137/174 looper letters, 73 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2024-11-08 18:04:42,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 146 transitions, 460 flow [2024-11-08 18:04:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:42,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2024-11-08 18:04:42,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5603448275862069 [2024-11-08 18:04:42,627 INFO L175 Difference]: Start difference. First operand has 140 places, 174 transitions, 364 flow. Second operand 4 states and 390 transitions. [2024-11-08 18:04:42,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 146 transitions, 460 flow [2024-11-08 18:04:42,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 146 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:04:42,638 INFO L231 Difference]: Finished difference. Result has 145 places, 146 transitions, 330 flow [2024-11-08 18:04:42,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=145, PETRI_TRANSITIONS=146} [2024-11-08 18:04:42,639 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-11-08 18:04:42,639 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 146 transitions, 330 flow [2024-11-08 18:04:42,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 18:04:42,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:42,640 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 18:04:42,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:04:42,640 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:04:42,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:42,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1922827098, now seen corresponding path program 1 times [2024-11-08 18:04:42,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:42,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998704778] [2024-11-08 18:04:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:42,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:42,795 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 18:04:42,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:42,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998704778] [2024-11-08 18:04:42,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998704778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:42,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330697733] [2024-11-08 18:04:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:42,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:42,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:42,799 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:42,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:04:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:42,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:04:42,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:42,985 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 18:04:42,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:04:42,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330697733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:42,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:04:42,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:04:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488513465] [2024-11-08 18:04:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:42,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:04:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:04:42,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:04:43,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2024-11-08 18:04:43,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 146 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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 18:04:43,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:43,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2024-11-08 18:04:43,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:48,293 INFO L124 PetriNetUnfolderBase]: 20134/42212 cut-off events. [2024-11-08 18:04:48,293 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-08 18:04:48,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72147 conditions, 42212 events. 20134/42212 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 432515 event pairs, 18580 based on Foata normal form. 1/38537 useless extension candidates. Maximal degree in co-relation 72127. Up to 29802 conditions per place. [2024-11-08 18:04:48,574 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 69 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-08 18:04:48,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 476 flow [2024-11-08 18:04:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:04:48,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:04:48,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2024-11-08 18:04:48,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47509578544061304 [2024-11-08 18:04:48,578 INFO L175 Difference]: Start difference. First operand has 145 places, 146 transitions, 330 flow. Second operand 6 states and 496 transitions. [2024-11-08 18:04:48,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 476 flow [2024-11-08 18:04:48,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:04:48,582 INFO L231 Difference]: Finished difference. Result has 148 places, 145 transitions, 336 flow [2024-11-08 18:04:48,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=148, PETRI_TRANSITIONS=145} [2024-11-08 18:04:48,584 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2024-11-08 18:04:48,584 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 145 transitions, 336 flow [2024-11-08 18:04:48,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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 18:04:48,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:48,585 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 18:04:48,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:04:48,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:48,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:04:48,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 521903087, now seen corresponding path program 1 times [2024-11-08 18:04:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:48,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872125443] [2024-11-08 18:04:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:48,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:04:48,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:48,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872125443] [2024-11-08 18:04:48,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872125443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:04:48,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:04:48,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:04:48,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455178886] [2024-11-08 18:04:48,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:04:48,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:04:48,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:48,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:04:48,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:04:48,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2024-11-08 18:04:48,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 145 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 18:04:48,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:48,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2024-11-08 18:04:48,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:53,749 INFO L124 PetriNetUnfolderBase]: 20133/42210 cut-off events. [2024-11-08 18:04:53,750 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-08 18:04:53,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72148 conditions, 42210 events. 20133/42210 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 432450 event pairs, 18580 based on Foata normal form. 2/38538 useless extension candidates. Maximal degree in co-relation 72121. Up to 29805 conditions per place. [2024-11-08 18:04:54,084 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 69 selfloop transitions, 6 changer transitions 0/144 dead transitions. [2024-11-08 18:04:54,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 480 flow [2024-11-08 18:04:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:04:54,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:04:54,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 351 transitions. [2024-11-08 18:04:54,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5043103448275862 [2024-11-08 18:04:54,088 INFO L175 Difference]: Start difference. First operand has 148 places, 145 transitions, 336 flow. Second operand 4 states and 351 transitions. [2024-11-08 18:04:54,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 480 flow [2024-11-08 18:04:54,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 144 transitions, 470 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:04:54,095 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 338 flow [2024-11-08 18:04:54,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=338, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-11-08 18:04:54,097 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 7 predicate places. [2024-11-08 18:04:54,097 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 338 flow [2024-11-08 18:04:54,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 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 18:04:54,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:04:54,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:04:54,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:04:54,099 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:04:54,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:04:54,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1366474783, now seen corresponding path program 1 times [2024-11-08 18:04:54,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:04:54,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171308041] [2024-11-08 18:04:54,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:54,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:04:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:54,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:54,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:04:54,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171308041] [2024-11-08 18:04:54,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171308041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:04:54,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41138065] [2024-11-08 18:04:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:04:54,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:04:54,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:04:54,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:04:54,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:04:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:04:54,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:04:54,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:04:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:54,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:04:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:04:54,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41138065] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:04:54,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:04:54,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:04:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117612536] [2024-11-08 18:04:54,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:04:54,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:04:54,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:04:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:04:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:04:54,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2024-11-08 18:04:54,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 338 flow. Second operand has 10 states, 10 states have (on average 70.7) internal successors, (707), 10 states have internal predecessors, (707), 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 18:04:54,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:04:54,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2024-11-08 18:04:54,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:04:59,629 INFO L124 PetriNetUnfolderBase]: 20133/42215 cut-off events. [2024-11-08 18:04:59,629 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2024-11-08 18:04:59,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72169 conditions, 42215 events. 20133/42215 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 432357 event pairs, 18580 based on Foata normal form. 2/38543 useless extension candidates. Maximal degree in co-relation 72113. Up to 29804 conditions per place. [2024-11-08 18:05:00,224 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 72 selfloop transitions, 7 changer transitions 0/148 dead transitions. [2024-11-08 18:05:00,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 148 transitions, 521 flow [2024-11-08 18:05:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:05:00,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 18:05:00,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 564 transitions. [2024-11-08 18:05:00,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4630541871921182 [2024-11-08 18:05:00,228 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 338 flow. Second operand 7 states and 564 transitions. [2024-11-08 18:05:00,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 148 transitions, 521 flow [2024-11-08 18:05:00,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 148 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:05:00,238 INFO L231 Difference]: Finished difference. Result has 154 places, 147 transitions, 376 flow [2024-11-08 18:05:00,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=376, PETRI_PLACES=154, PETRI_TRANSITIONS=147} [2024-11-08 18:05:00,240 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-11-08 18:05:00,240 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 147 transitions, 376 flow [2024-11-08 18:05:00,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 70.7) internal successors, (707), 10 states have internal predecessors, (707), 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 18:05:00,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:00,241 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:00,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:05:00,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:05:00,441 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:05:00,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -818492601, now seen corresponding path program 2 times [2024-11-08 18:05:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:00,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800804859] [2024-11-08 18:05:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:05:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:00,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800804859] [2024-11-08 18:05:00,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800804859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:00,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:00,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:05:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903411038] [2024-11-08 18:05:00,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:00,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:05:00,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:05:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:05:00,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 174 [2024-11-08 18:05:00,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 147 transitions, 376 flow. Second operand has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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 18:05:00,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:00,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 174 [2024-11-08 18:05:00,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:06,567 INFO L124 PetriNetUnfolderBase]: 24701/49787 cut-off events. [2024-11-08 18:05:06,567 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-08 18:05:06,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86294 conditions, 49787 events. 24701/49787 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 1249. Compared 498025 event pairs, 12180 based on Foata normal form. 22/44819 useless extension candidates. Maximal degree in co-relation 86232. Up to 36291 conditions per place. [2024-11-08 18:05:06,817 INFO L140 encePairwiseOnDemand]: 167/174 looper letters, 120 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2024-11-08 18:05:06,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 190 transitions, 708 flow [2024-11-08 18:05:06,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:05:06,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:05:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2024-11-08 18:05:06,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675287356321839 [2024-11-08 18:05:06,819 INFO L175 Difference]: Start difference. First operand has 154 places, 147 transitions, 376 flow. Second operand 4 states and 395 transitions. [2024-11-08 18:05:06,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 190 transitions, 708 flow [2024-11-08 18:05:06,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 190 transitions, 702 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 18:05:06,824 INFO L231 Difference]: Finished difference. Result has 157 places, 149 transitions, 396 flow [2024-11-08 18:05:06,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=157, PETRI_TRANSITIONS=149} [2024-11-08 18:05:06,825 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 17 predicate places. [2024-11-08 18:05:06,825 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 149 transitions, 396 flow [2024-11-08 18:05:06,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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 18:05:06,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:06,826 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:06,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:05:06,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:05:06,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -591505104, now seen corresponding path program 1 times [2024-11-08 18:05:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:06,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922952566] [2024-11-08 18:05:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:06,946 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:05:06,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:06,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922952566] [2024-11-08 18:05:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922952566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:06,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:06,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:05:06,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717813273] [2024-11-08 18:05:06,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:06,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:05:06,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:06,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:05:06,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:05:06,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 174 [2024-11-08 18:05:06,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 149 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 18:05:06,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:06,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 174 [2024-11-08 18:05:06,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:11,466 INFO L124 PetriNetUnfolderBase]: 20522/39228 cut-off events. [2024-11-08 18:05:11,467 INFO L125 PetriNetUnfolderBase]: For 680/1608 co-relation queries the response was YES. [2024-11-08 18:05:11,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70641 conditions, 39228 events. 20522/39228 cut-off events. For 680/1608 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 384981 event pairs, 420 based on Foata normal form. 504/36577 useless extension candidates. Maximal degree in co-relation 70579. Up to 26982 conditions per place. [2024-11-08 18:05:11,757 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 163 selfloop transitions, 3 changer transitions 0/238 dead transitions. [2024-11-08 18:05:11,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 238 transitions, 932 flow [2024-11-08 18:05:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:05:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:05:11,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2024-11-08 18:05:11,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-08 18:05:11,760 INFO L175 Difference]: Start difference. First operand has 157 places, 149 transitions, 396 flow. Second operand 4 states and 448 transitions. [2024-11-08 18:05:11,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 238 transitions, 932 flow [2024-11-08 18:05:11,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 238 transitions, 928 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:05:11,769 INFO L231 Difference]: Finished difference. Result has 158 places, 148 transitions, 398 flow [2024-11-08 18:05:11,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=398, PETRI_PLACES=158, PETRI_TRANSITIONS=148} [2024-11-08 18:05:11,770 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 18 predicate places. [2024-11-08 18:05:11,771 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 148 transitions, 398 flow [2024-11-08 18:05:11,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 18:05:11,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:11,771 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:11,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:05:11,772 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:05:11,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1156788028, now seen corresponding path program 1 times [2024-11-08 18:05:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:11,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826132389] [2024-11-08 18:05:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:05:11,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826132389] [2024-11-08 18:05:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826132389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:05:11,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:05:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:05:11,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826668706] [2024-11-08 18:05:11,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:05:11,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:05:11,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:11,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:05:11,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:05:11,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 174 [2024-11-08 18:05:11,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 148 transitions, 398 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 18:05:11,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:11,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 174 [2024-11-08 18:05:11,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:17,061 INFO L124 PetriNetUnfolderBase]: 20244/42239 cut-off events. [2024-11-08 18:05:17,062 INFO L125 PetriNetUnfolderBase]: For 1597/2468 co-relation queries the response was YES. [2024-11-08 18:05:17,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74180 conditions, 42239 events. 20244/42239 cut-off events. For 1597/2468 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 431733 event pairs, 15868 based on Foata normal form. 503/38957 useless extension candidates. Maximal degree in co-relation 74118. Up to 25624 conditions per place. [2024-11-08 18:05:17,341 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 162 selfloop transitions, 3 changer transitions 0/237 dead transitions. [2024-11-08 18:05:17,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 237 transitions, 930 flow [2024-11-08 18:05:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:05:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:05:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2024-11-08 18:05:17,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6422413793103449 [2024-11-08 18:05:17,344 INFO L175 Difference]: Start difference. First operand has 158 places, 148 transitions, 398 flow. Second operand 4 states and 447 transitions. [2024-11-08 18:05:17,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 237 transitions, 930 flow [2024-11-08 18:05:17,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 237 transitions, 924 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:05:17,355 INFO L231 Difference]: Finished difference. Result has 157 places, 147 transitions, 396 flow [2024-11-08 18:05:17,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=157, PETRI_TRANSITIONS=147} [2024-11-08 18:05:17,357 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 17 predicate places. [2024-11-08 18:05:17,357 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 147 transitions, 396 flow [2024-11-08 18:05:17,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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 18:05:17,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:17,358 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:17,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:05:17,358 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:05:17,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1168779516, now seen corresponding path program 1 times [2024-11-08 18:05:17,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:17,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144933359] [2024-11-08 18:05:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:17,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:17,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144933359] [2024-11-08 18:05:17,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144933359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:05:17,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380705118] [2024-11-08 18:05:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:05:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:05:17,550 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:05:17,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:05:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:17,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:05:17,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:17,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:05:17,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:17,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380705118] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:05:17,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:05:17,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 18:05:17,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106661927] [2024-11-08 18:05:17,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:05:17,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:05:17,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:05:17,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:05:17,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2024-11-08 18:05:17,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 147 transitions, 396 flow. Second operand has 18 states, 18 states have (on average 70.72222222222223) internal successors, (1273), 18 states have internal predecessors, (1273), 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 18:05:17,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:17,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2024-11-08 18:05:17,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:05:24,467 INFO L124 PetriNetUnfolderBase]: 20364/43449 cut-off events. [2024-11-08 18:05:24,467 INFO L125 PetriNetUnfolderBase]: For 2122/2984 co-relation queries the response was YES. [2024-11-08 18:05:24,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75462 conditions, 43449 events. 20364/43449 cut-off events. For 2122/2984 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 450283 event pairs, 18580 based on Foata normal form. 22/39464 useless extension candidates. Maximal degree in co-relation 75328. Up to 29852 conditions per place. [2024-11-08 18:05:24,718 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 77 selfloop transitions, 15 changer transitions 0/160 dead transitions. [2024-11-08 18:05:24,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 160 transitions, 690 flow [2024-11-08 18:05:24,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:05:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 18:05:24,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1130 transitions. [2024-11-08 18:05:24,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4329501915708812 [2024-11-08 18:05:24,723 INFO L175 Difference]: Start difference. First operand has 157 places, 147 transitions, 396 flow. Second operand 15 states and 1130 transitions. [2024-11-08 18:05:24,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 160 transitions, 690 flow [2024-11-08 18:05:24,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 160 transitions, 684 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 18:05:24,734 INFO L231 Difference]: Finished difference. Result has 173 places, 156 transitions, 524 flow [2024-11-08 18:05:24,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=524, PETRI_PLACES=173, PETRI_TRANSITIONS=156} [2024-11-08 18:05:24,735 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 33 predicate places. [2024-11-08 18:05:24,735 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 156 transitions, 524 flow [2024-11-08 18:05:24,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 70.72222222222223) internal successors, (1273), 18 states have internal predecessors, (1273), 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 18:05:24,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:05:24,736 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:05:24,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:05:24,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:05:24,937 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-08 18:05:24,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:05:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1187065136, now seen corresponding path program 2 times [2024-11-08 18:05:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:05:24,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368876434] [2024-11-08 18:05:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:05:24,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:05:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:05:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:25,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:05:25,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368876434] [2024-11-08 18:05:25,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368876434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:05:25,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405940148] [2024-11-08 18:05:25,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:05:25,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:05:25,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:05:25,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:05:25,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0465fab2-2783-4a29-9146-019dd96b441d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:05:25,509 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:05:25,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:05:25,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:05:25,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:05:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:25,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:05:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:05:25,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405940148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:05:25,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:05:25,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 18:05:25,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951234641] [2024-11-08 18:05:25,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:05:25,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 18:05:25,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:05:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 18:05:25,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:05:25,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 174 [2024-11-08 18:05:25,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 156 transitions, 524 flow. Second operand has 23 states, 23 states have (on average 70.73913043478261) internal successors, (1627), 23 states have internal predecessors, (1627), 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 18:05:25,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:05:25,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 174 [2024-11-08 18:05:25,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand