./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/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_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/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_88c099d8-43de-4433-8ec7-d45655aa56bb/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 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:00:19,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:00:19,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:00:19,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:00:19,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:00:19,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:00:19,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:00:19,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:00:19,272 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:00:19,273 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:00:19,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:00:19,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:00:19,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:00:19,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:00:19,277 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:00:19,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:00:19,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:00:19,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:00:19,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:00:19,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:00:19,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:00:19,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:00:19,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:00:19,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:00:19,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:00:19,284 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:00:19,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:00:19,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:00:19,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:00:19,286 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:00:19,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:00:19,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:00:19,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:00:19,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:00:19,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:00:19,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:00:19,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:00:19,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:00:19,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:00:19,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:00:19,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:00:19,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:00:19,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:00:19,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:00:19,294 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_88c099d8-43de-4433-8ec7-d45655aa56bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a7db49c8892594e32a30fa9165fc3ad1a94911917cd8b63757bb8f24f04b536 [2024-11-08 17:00:19,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:00:19,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:00:19,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:00:19,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:00:19,672 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:00:19,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i Unable to find full path for "g++" [2024-11-08 17:00:22,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:00:22,479 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:00:22,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/sv-benchmarks/c/goblint-regression/28-race_reach_74-tricky_address1_racefree.i [2024-11-08 17:00:22,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/data/3c458c30b/59da955f510b4d4baf7d8a0e1d0d9512/FLAG0eb5df068 [2024-11-08 17:00:22,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/data/3c458c30b/59da955f510b4d4baf7d8a0e1d0d9512 [2024-11-08 17:00:22,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:00:22,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:00:22,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:00:22,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:00:22,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:00:22,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:00:22" (1/1) ... [2024-11-08 17:00:22,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a80f9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:22, skipping insertion in model container [2024-11-08 17:00:22,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:00:22" (1/1) ... [2024-11-08 17:00:22,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:00:23,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:00:23,621 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:00:23,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:00:23,774 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:00:23,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23 WrapperNode [2024-11-08 17:00:23,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:00:23,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:23,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:00:23,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:00:23,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,891 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 277 [2024-11-08 17:00:23,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:00:23,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:00:23,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:00:23,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:00:23,905 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,929 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 2, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 5 writes are split as follows [0, 0, 1, 4]. [2024-11-08 17:00:23,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,943 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:00:23,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:00:23,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:00:23,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:00:23,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (1/1) ... [2024-11-08 17:00:23,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:00:23,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:24,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:00:24,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:00:24,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:00:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:00:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:00:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:00:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:00:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:00:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:00:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:00:24,070 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:00:24,257 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:00:24,260 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:00:24,881 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:00:24,882 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:00:25,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:00:25,605 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 17:00:25,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:25 BoogieIcfgContainer [2024-11-08 17:00:25,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:00:25,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:00:25,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:00:25,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:00:25,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:00:22" (1/3) ... [2024-11-08 17:00:25,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1f3fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:25, skipping insertion in model container [2024-11-08 17:00:25,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:00:23" (2/3) ... [2024-11-08 17:00:25,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1f3fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:00:25, skipping insertion in model container [2024-11-08 17:00:25,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:00:25" (3/3) ... [2024-11-08 17:00:25,618 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_74-tricky_address1_racefree.i [2024-11-08 17:00:25,643 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:00:25,643 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 17:00:25,643 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:00:25,724 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:00:25,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 120 transitions, 247 flow [2024-11-08 17:00:25,889 INFO L124 PetriNetUnfolderBase]: 40/173 cut-off events. [2024-11-08 17:00:25,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:00:25,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 173 events. 40/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 641 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 102. Up to 8 conditions per place. [2024-11-08 17:00:25,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 120 transitions, 247 flow [2024-11-08 17:00:25,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 119 transitions, 245 flow [2024-11-08 17:00:25,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:25,935 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;@2d5730f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:25,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-08 17:00:25,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:00:25,947 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:00:25,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:00:25,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:25,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:00:25,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:25,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 23366332, now seen corresponding path program 1 times [2024-11-08 17:00:25,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:25,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491119250] [2024-11-08 17:00:25,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:25,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:26,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:26,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491119250] [2024-11-08 17:00:26,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491119250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:26,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:26,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:26,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550155349] [2024-11-08 17:00:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:26,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:26,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:26,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:26,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:26,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 120 [2024-11-08 17:00:26,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 119 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:26,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:26,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 120 [2024-11-08 17:00:26,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:27,359 INFO L124 PetriNetUnfolderBase]: 438/1383 cut-off events. [2024-11-08 17:00:27,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:00:27,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2236 conditions, 1383 events. 438/1383 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9439 event pairs, 378 based on Foata normal form. 265/1504 useless extension candidates. Maximal degree in co-relation 2134. Up to 846 conditions per place. [2024-11-08 17:00:27,384 INFO L140 encePairwiseOnDemand]: 93/120 looper letters, 48 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2024-11-08 17:00:27,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 311 flow [2024-11-08 17:00:27,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:27,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-08 17:00:27,405 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2024-11-08 17:00:27,408 INFO L175 Difference]: Start difference. First operand has 96 places, 119 transitions, 245 flow. Second operand 4 states and 275 transitions. [2024-11-08 17:00:27,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 311 flow [2024-11-08 17:00:27,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 311 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:00:27,422 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 231 flow [2024-11-08 17:00:27,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2024-11-08 17:00:27,432 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-08 17:00:27,433 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 231 flow [2024-11-08 17:00:27,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:27,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:27,434 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:00:27,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:00:27,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:27,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1404744769, now seen corresponding path program 1 times [2024-11-08 17:00:27,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:27,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178703241] [2024-11-08 17:00:27,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:27,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:27,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:27,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178703241] [2024-11-08 17:00:27,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178703241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:27,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215495097] [2024-11-08 17:00:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:27,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:27,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:27,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:27,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:00:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:27,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:00:27,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:27,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:27,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:27,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215495097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:27,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:27,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:00:27,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529340320] [2024-11-08 17:00:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:27,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:00:27,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:00:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:00:27,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 120 [2024-11-08 17:00:28,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:28,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:28,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 120 [2024-11-08 17:00:28,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:28,509 INFO L124 PetriNetUnfolderBase]: 438/1382 cut-off events. [2024-11-08 17:00:28,509 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 17:00:28,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2247 conditions, 1382 events. 438/1382 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9432 event pairs, 378 based on Foata normal form. 1/1239 useless extension candidates. Maximal degree in co-relation 2228. Up to 839 conditions per place. [2024-11-08 17:00:28,522 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 44 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-11-08 17:00:28,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 327 flow [2024-11-08 17:00:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:00:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:00:28,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 351 transitions. [2024-11-08 17:00:28,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4875 [2024-11-08 17:00:28,531 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 231 flow. Second operand 6 states and 351 transitions. [2024-11-08 17:00:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 327 flow [2024-11-08 17:00:28,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 100 transitions, 325 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:00:28,536 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 237 flow [2024-11-08 17:00:28,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2024-11-08 17:00:28,538 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2024-11-08 17:00:28,538 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 237 flow [2024-11-08 17:00:28,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:28,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:28,540 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:00:28,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:00:28,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:28,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:28,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash 597415597, now seen corresponding path program 1 times [2024-11-08 17:00:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:28,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986569375] [2024-11-08 17:00:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:28,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:28,862 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 17:00:28,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986569375] [2024-11-08 17:00:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986569375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:00:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131422166] [2024-11-08 17:00:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:28,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:28,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:28,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:28,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 17:00:28,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:28,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:28,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 17:00:28,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:29,213 INFO L124 PetriNetUnfolderBase]: 437/1380 cut-off events. [2024-11-08 17:00:29,213 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 17:00:29,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 1380 events. 437/1380 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9399 event pairs, 378 based on Foata normal form. 2/1240 useless extension candidates. Maximal degree in co-relation 2222. Up to 842 conditions per place. [2024-11-08 17:00:29,253 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 44 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2024-11-08 17:00:29,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 331 flow [2024-11-08 17:00:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-08 17:00:29,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5125 [2024-11-08 17:00:29,256 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 237 flow. Second operand 4 states and 246 transitions. [2024-11-08 17:00:29,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 331 flow [2024-11-08 17:00:29,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 321 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:00:29,260 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 239 flow [2024-11-08 17:00:29,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-11-08 17:00:29,261 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-08 17:00:29,261 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 239 flow [2024-11-08 17:00:29,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:29,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:29,262 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:29,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:00:29,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:29,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 297938682, now seen corresponding path program 1 times [2024-11-08 17:00:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:29,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801743651] [2024-11-08 17:00:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:29,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:29,379 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 17:00:29,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:29,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801743651] [2024-11-08 17:00:29,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801743651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:29,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627284766] [2024-11-08 17:00:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:29,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:29,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:29,383 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:29,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:00:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:29,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:00:29,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:29,575 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 17:00:29,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:29,636 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 17:00:29,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627284766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:29,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:29,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:00:29,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544827529] [2024-11-08 17:00:29,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:29,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:00:29,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:29,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:00:29,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:00:29,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 17:00:29,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 239 flow. Second operand has 10 states, 10 states have (on average 50.7) internal successors, (507), 10 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:29,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:29,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 17:00:29,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:30,074 INFO L124 PetriNetUnfolderBase]: 437/1385 cut-off events. [2024-11-08 17:00:30,074 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-08 17:00:30,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1385 events. 437/1385 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9410 event pairs, 378 based on Foata normal form. 2/1245 useless extension candidates. Maximal degree in co-relation 2214. Up to 841 conditions per place. [2024-11-08 17:00:30,084 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 47 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2024-11-08 17:00:30,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 372 flow [2024-11-08 17:00:30,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:00:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:00:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 399 transitions. [2024-11-08 17:00:30,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-11-08 17:00:30,087 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 239 flow. Second operand 7 states and 399 transitions. [2024-11-08 17:00:30,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 372 flow [2024-11-08 17:00:30,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 359 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:00:30,092 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 277 flow [2024-11-08 17:00:30,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=110, PETRI_TRANSITIONS=102} [2024-11-08 17:00:30,093 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 14 predicate places. [2024-11-08 17:00:30,093 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 277 flow [2024-11-08 17:00:30,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 50.7) internal successors, (507), 10 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:30,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:30,094 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:30,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:00:30,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:30,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:30,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash 316673412, now seen corresponding path program 2 times [2024-11-08 17:00:30,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:30,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513613521] [2024-11-08 17:00:30,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:30,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:30,439 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 17:00:30,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:30,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513613521] [2024-11-08 17:00:30,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513613521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:30,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:30,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:00:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870080991] [2024-11-08 17:00:30,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:30,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:30,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:30,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 120 [2024-11-08 17:00:30,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 102 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:30,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:30,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 120 [2024-11-08 17:00:30,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:30,879 INFO L124 PetriNetUnfolderBase]: 492/1382 cut-off events. [2024-11-08 17:00:30,879 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 17:00:30,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2364 conditions, 1382 events. 492/1382 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9003 event pairs, 0 based on Foata normal form. 20/1276 useless extension candidates. Maximal degree in co-relation 2303. Up to 879 conditions per place. [2024-11-08 17:00:30,889 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 87 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-08 17:00:30,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 137 transitions, 527 flow [2024-11-08 17:00:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:30,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-11-08 17:00:30,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5875 [2024-11-08 17:00:30,891 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 277 flow. Second operand 4 states and 282 transitions. [2024-11-08 17:00:30,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 137 transitions, 527 flow [2024-11-08 17:00:30,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 137 transitions, 521 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:00:30,897 INFO L231 Difference]: Finished difference. Result has 110 places, 100 transitions, 279 flow [2024-11-08 17:00:30,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=110, PETRI_TRANSITIONS=100} [2024-11-08 17:00:30,899 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 14 predicate places. [2024-11-08 17:00:30,899 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 100 transitions, 279 flow [2024-11-08 17:00:30,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:30,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:30,899 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:30,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:00:30,900 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:30,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:30,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1656018598, now seen corresponding path program 1 times [2024-11-08 17:00:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:30,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767464046] [2024-11-08 17:00:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:30,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,119 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 17:00:31,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:31,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767464046] [2024-11-08 17:00:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767464046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877542320] [2024-11-08 17:00:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:31,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:31,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:31,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:00:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:00:31,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:31,335 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 17:00:31,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:31,486 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 17:00:31,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877542320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:31,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:31,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:00:31,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282509281] [2024-11-08 17:00:31,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:31,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:00:31,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:31,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:00:31,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:00:31,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 17:00:31,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 100 transitions, 279 flow. Second operand has 18 states, 18 states have (on average 50.666666666666664) internal successors, (912), 18 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:31,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:31,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 17:00:31,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:32,124 INFO L124 PetriNetUnfolderBase]: 439/1346 cut-off events. [2024-11-08 17:00:32,125 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-08 17:00:32,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2299 conditions, 1346 events. 439/1346 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8900 event pairs, 378 based on Foata normal form. 4/1217 useless extension candidates. Maximal degree in co-relation 2167. Up to 823 conditions per place. [2024-11-08 17:00:32,136 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 51 selfloop transitions, 15 changer transitions 0/113 dead transitions. [2024-11-08 17:00:32,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 113 transitions, 521 flow [2024-11-08 17:00:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:00:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:00:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 805 transitions. [2024-11-08 17:00:32,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44722222222222224 [2024-11-08 17:00:32,140 INFO L175 Difference]: Start difference. First operand has 110 places, 100 transitions, 279 flow. Second operand 15 states and 805 transitions. [2024-11-08 17:00:32,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 113 transitions, 521 flow [2024-11-08 17:00:32,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 113 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:00:32,145 INFO L231 Difference]: Finished difference. Result has 126 places, 109 transitions, 407 flow [2024-11-08 17:00:32,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=407, PETRI_PLACES=126, PETRI_TRANSITIONS=109} [2024-11-08 17:00:32,147 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 30 predicate places. [2024-11-08 17:00:32,147 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 109 transitions, 407 flow [2024-11-08 17:00:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 50.666666666666664) internal successors, (912), 18 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:32,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:32,148 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:32,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:00:32,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:32,350 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:32,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:32,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1836160070, now seen corresponding path program 2 times [2024-11-08 17:00:32,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:32,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999808482] [2024-11-08 17:00:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:32,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:32,835 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 17:00:32,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:32,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999808482] [2024-11-08 17:00:32,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999808482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:32,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912602086] [2024-11-08 17:00:32,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:00:32,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:32,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:32,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:32,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:00:32,977 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:00:32,977 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:00:32,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:00:32,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:33,111 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 17:00:33,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:33,414 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 17:00:33,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912602086] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:33,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:33,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 17:00:33,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116274581] [2024-11-08 17:00:33,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:33,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:00:33,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:00:33,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:00:33,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 17:00:33,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 109 transitions, 407 flow. Second operand has 23 states, 23 states have (on average 50.69565217391305) internal successors, (1166), 23 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:33,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:33,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 17:00:33,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:34,053 INFO L124 PetriNetUnfolderBase]: 439/1358 cut-off events. [2024-11-08 17:00:34,053 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-08 17:00:34,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1358 events. 439/1358 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8872 event pairs, 378 based on Foata normal form. 3/1228 useless extension candidates. Maximal degree in co-relation 2150. Up to 823 conditions per place. [2024-11-08 17:00:34,063 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 54 selfloop transitions, 21 changer transitions 0/122 dead transitions. [2024-11-08 17:00:34,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 122 transitions, 701 flow [2024-11-08 17:00:34,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:00:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:00:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1107 transitions. [2024-11-08 17:00:34,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4392857142857143 [2024-11-08 17:00:34,068 INFO L175 Difference]: Start difference. First operand has 126 places, 109 transitions, 407 flow. Second operand 21 states and 1107 transitions. [2024-11-08 17:00:34,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 122 transitions, 701 flow [2024-11-08 17:00:34,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 122 transitions, 661 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-08 17:00:34,074 INFO L231 Difference]: Finished difference. Result has 146 places, 116 transitions, 513 flow [2024-11-08 17:00:34,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=513, PETRI_PLACES=146, PETRI_TRANSITIONS=116} [2024-11-08 17:00:34,075 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 50 predicate places. [2024-11-08 17:00:34,075 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 116 transitions, 513 flow [2024-11-08 17:00:34,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 50.69565217391305) internal successors, (1166), 23 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:34,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:34,077 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:34,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:00:34,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:34,281 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-08 17:00:34,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:34,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1097215305, now seen corresponding path program 3 times [2024-11-08 17:00:34,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:34,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965520234] [2024-11-08 17:00:34,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:34,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:34,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:00:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:00:34,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:00:34,418 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:00:34,419 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-08 17:00:34,422 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-08 17:00:34,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-08 17:00:34,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-08 17:00:34,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-08 17:00:34,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-08 17:00:34,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-08 17:00:34,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-08 17:00:34,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-08 17:00:34,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-08 17:00:34,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-08 17:00:34,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-08 17:00:34,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-08 17:00:34,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-08 17:00:34,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-08 17:00:34,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-08 17:00:34,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-08 17:00:34,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-08 17:00:34,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-08 17:00:34,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:00:34,431 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-08 17:00:34,434 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 17:00:34,437 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 17:00:34,487 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 17:00:34,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 166 transitions, 348 flow [2024-11-08 17:00:34,523 INFO L124 PetriNetUnfolderBase]: 67/294 cut-off events. [2024-11-08 17:00:34,523 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:00:34,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 294 events. 67/294 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1263 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 175. Up to 12 conditions per place. [2024-11-08 17:00:34,525 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 166 transitions, 348 flow [2024-11-08 17:00:34,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 166 transitions, 348 flow [2024-11-08 17:00:34,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:00:34,534 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;@2d5730f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:00:34,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 17:00:34,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:00:34,537 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 17:00:34,537 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:00:34,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:34,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:00:34,541 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 17:00:34,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:34,541 INFO L85 PathProgramCache]: Analyzing trace with hash 28476476, now seen corresponding path program 1 times [2024-11-08 17:00:34,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:34,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356913753] [2024-11-08 17:00:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:34,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:34,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:34,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356913753] [2024-11-08 17:00:34,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356913753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:34,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:34,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:00:34,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045702986] [2024-11-08 17:00:34,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:34,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:34,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:34,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:34,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:34,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2024-11-08 17:00:34,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 166 transitions, 348 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:34,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:34,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2024-11-08 17:00:34,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:39,217 INFO L124 PetriNetUnfolderBase]: 16531/35368 cut-off events. [2024-11-08 17:00:39,217 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-08 17:00:39,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59971 conditions, 35368 events. 16531/35368 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 362900 event pairs, 15174 based on Foata normal form. 7952/40110 useless extension candidates. Maximal degree in co-relation 25040. Up to 24499 conditions per place. [2024-11-08 17:00:39,475 INFO L140 encePairwiseOnDemand]: 129/166 looper letters, 69 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-08 17:00:39,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 436 flow [2024-11-08 17:00:39,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-08 17:00:39,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572289156626506 [2024-11-08 17:00:39,478 INFO L175 Difference]: Start difference. First operand has 132 places, 166 transitions, 348 flow. Second operand 4 states and 370 transitions. [2024-11-08 17:00:39,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 436 flow [2024-11-08 17:00:39,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 138 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:00:39,483 INFO L231 Difference]: Finished difference. Result has 137 places, 138 transitions, 314 flow [2024-11-08 17:00:39,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=137, PETRI_TRANSITIONS=138} [2024-11-08 17:00:39,487 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 5 predicate places. [2024-11-08 17:00:39,487 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 138 transitions, 314 flow [2024-11-08 17:00:39,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:39,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:39,489 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:00:39,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:00:39,490 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 17:00:39,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:39,490 INFO L85 PathProgramCache]: Analyzing trace with hash 566093633, now seen corresponding path program 1 times [2024-11-08 17:00:39,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:39,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661579302] [2024-11-08 17:00:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:39,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:39,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661579302] [2024-11-08 17:00:39,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661579302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183495705] [2024-11-08 17:00:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:39,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:39,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:39,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:00:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:39,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:00:39,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:00:39,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:00:39,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183495705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:39,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:00:39,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:00:39,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478843516] [2024-11-08 17:00:39,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:39,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:00:39,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:39,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:00:39,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:00:39,836 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2024-11-08 17:00:39,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 138 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:39,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:39,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2024-11-08 17:00:39,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:43,413 INFO L124 PetriNetUnfolderBase]: 16531/35367 cut-off events. [2024-11-08 17:00:43,413 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-08 17:00:43,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59982 conditions, 35367 events. 16531/35367 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 362904 event pairs, 15174 based on Foata normal form. 1/32158 useless extension candidates. Maximal degree in co-relation 59962. Up to 24492 conditions per place. [2024-11-08 17:00:43,770 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 65 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2024-11-08 17:00:43,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 452 flow [2024-11-08 17:00:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:00:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:00:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2024-11-08 17:00:43,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46987951807228917 [2024-11-08 17:00:43,773 INFO L175 Difference]: Start difference. First operand has 137 places, 138 transitions, 314 flow. Second operand 6 states and 468 transitions. [2024-11-08 17:00:43,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 452 flow [2024-11-08 17:00:43,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:00:43,776 INFO L231 Difference]: Finished difference. Result has 140 places, 137 transitions, 320 flow [2024-11-08 17:00:43,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=140, PETRI_TRANSITIONS=137} [2024-11-08 17:00:43,777 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 8 predicate places. [2024-11-08 17:00:43,777 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 137 transitions, 320 flow [2024-11-08 17:00:43,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:43,778 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:43,778 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:00:43,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:00:43,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:00:43,979 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 17:00:43,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:43,980 INFO L85 PathProgramCache]: Analyzing trace with hash 369034323, now seen corresponding path program 1 times [2024-11-08 17:00:43,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:43,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645324217] [2024-11-08 17:00:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:43,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:44,055 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 17:00:44,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:44,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645324217] [2024-11-08 17:00:44,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645324217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:44,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:44,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:00:44,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272310828] [2024-11-08 17:00:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:44,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:44,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:44,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 17:00:44,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 137 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:44,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:44,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 17:00:44,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:47,601 INFO L124 PetriNetUnfolderBase]: 16530/35365 cut-off events. [2024-11-08 17:00:47,601 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-08 17:00:47,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59983 conditions, 35365 events. 16530/35365 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 362921 event pairs, 15174 based on Foata normal form. 2/32159 useless extension candidates. Maximal degree in co-relation 59956. Up to 24495 conditions per place. [2024-11-08 17:00:47,817 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 65 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-08 17:00:47,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 136 transitions, 456 flow [2024-11-08 17:00:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:47,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-08 17:00:47,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49849397590361444 [2024-11-08 17:00:47,820 INFO L175 Difference]: Start difference. First operand has 140 places, 137 transitions, 320 flow. Second operand 4 states and 331 transitions. [2024-11-08 17:00:47,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 136 transitions, 456 flow [2024-11-08 17:00:47,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 136 transitions, 446 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:00:47,823 INFO L231 Difference]: Finished difference. Result has 139 places, 136 transitions, 322 flow [2024-11-08 17:00:47,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=139, PETRI_TRANSITIONS=136} [2024-11-08 17:00:47,825 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 7 predicate places. [2024-11-08 17:00:47,825 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 136 transitions, 322 flow [2024-11-08 17:00:47,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:47,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:47,826 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:47,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:00:47,826 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 17:00:47,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash -180191066, now seen corresponding path program 1 times [2024-11-08 17:00:47,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:47,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858753702] [2024-11-08 17:00:47,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:47,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:47,908 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 17:00:47,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:47,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858753702] [2024-11-08 17:00:47,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858753702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061826207] [2024-11-08 17:00:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:47,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:47,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:47,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:47,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:00:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:48,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:00:48,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:48,109 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 17:00:48,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:48,157 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 17:00:48,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061826207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:48,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:48,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:00:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075983774] [2024-11-08 17:00:48,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:48,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:00:48,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:48,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:00:48,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:00:48,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 17:00:48,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 136 transitions, 322 flow. Second operand has 10 states, 10 states have (on average 66.7) internal successors, (667), 10 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:48,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:48,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 17:00:48,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:52,097 INFO L124 PetriNetUnfolderBase]: 16530/35370 cut-off events. [2024-11-08 17:00:52,097 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-08 17:00:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60004 conditions, 35370 events. 16530/35370 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 362829 event pairs, 15174 based on Foata normal form. 2/32164 useless extension candidates. Maximal degree in co-relation 59948. Up to 24494 conditions per place. [2024-11-08 17:00:52,294 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 68 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2024-11-08 17:00:52,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 497 flow [2024-11-08 17:00:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:00:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:00:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 532 transitions. [2024-11-08 17:00:52,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4578313253012048 [2024-11-08 17:00:52,297 INFO L175 Difference]: Start difference. First operand has 139 places, 136 transitions, 322 flow. Second operand 7 states and 532 transitions. [2024-11-08 17:00:52,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 497 flow [2024-11-08 17:00:52,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 140 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:00:52,301 INFO L231 Difference]: Finished difference. Result has 146 places, 139 transitions, 360 flow [2024-11-08 17:00:52,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=360, PETRI_PLACES=146, PETRI_TRANSITIONS=139} [2024-11-08 17:00:52,303 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 14 predicate places. [2024-11-08 17:00:52,303 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 139 transitions, 360 flow [2024-11-08 17:00:52,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 66.7) internal successors, (667), 10 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:52,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:52,304 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:52,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:00:52,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 17:00:52,508 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 17:00:52,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash -231796176, now seen corresponding path program 2 times [2024-11-08 17:00:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:52,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865054495] [2024-11-08 17:00:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:52,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:52,588 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 17:00:52,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:52,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865054495] [2024-11-08 17:00:52,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865054495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:52,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:52,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:00:52,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874048655] [2024-11-08 17:00:52,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:52,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:00:52,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:00:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:00:52,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-08 17:00:52,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:52,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:52,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-08 17:00:52,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:00:57,180 INFO L124 PetriNetUnfolderBase]: 20272/41516 cut-off events. [2024-11-08 17:00:57,180 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-08 17:00:57,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71402 conditions, 41516 events. 20272/41516 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 414862 event pairs, 8964 based on Foata normal form. 20/37394 useless extension candidates. Maximal degree in co-relation 71340. Up to 29686 conditions per place. [2024-11-08 17:00:57,462 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 112 selfloop transitions, 3 changer transitions 0/178 dead transitions. [2024-11-08 17:00:57,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 178 transitions, 668 flow [2024-11-08 17:00:57,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:00:57,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:00:57,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2024-11-08 17:00:57,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5587349397590361 [2024-11-08 17:00:57,468 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 360 flow. Second operand 4 states and 371 transitions. [2024-11-08 17:00:57,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 178 transitions, 668 flow [2024-11-08 17:00:57,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 178 transitions, 662 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:00:57,481 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 380 flow [2024-11-08 17:00:57,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=380, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2024-11-08 17:00:57,485 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 17 predicate places. [2024-11-08 17:00:57,486 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 380 flow [2024-11-08 17:00:57,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:57,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:00:57,488 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:57,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:00:57,488 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 17:00:57,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:57,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1187229909, now seen corresponding path program 1 times [2024-11-08 17:00:57,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:57,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893221591] [2024-11-08 17:00:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:57,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,751 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 17:00:57,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:57,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893221591] [2024-11-08 17:00:57,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893221591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002569885] [2024-11-08 17:00:57,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:57,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:57,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:57,756 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:57,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 17:00:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:57,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:00:57,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:57,979 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 17:00:57,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:00:58,105 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 17:00:58,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002569885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:00:58,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:00:58,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:00:58,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693219744] [2024-11-08 17:00:58,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:00:58,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:00:58,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:58,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:00:58,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:00:58,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 17:00:58,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 66.72222222222223) internal successors, (1201), 18 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:00:58,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:00:58,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 17:00:58,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:02,986 INFO L124 PetriNetUnfolderBase]: 16754/36170 cut-off events. [2024-11-08 17:01:02,986 INFO L125 PetriNetUnfolderBase]: For 581/1275 co-relation queries the response was YES. [2024-11-08 17:01:03,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61330 conditions, 36170 events. 16754/36170 cut-off events. For 581/1275 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 372450 event pairs, 15174 based on Foata normal form. 20/32744 useless extension candidates. Maximal degree in co-relation 61196. Up to 24517 conditions per place. [2024-11-08 17:01:03,230 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 73 selfloop transitions, 15 changer transitions 0/154 dead transitions. [2024-11-08 17:01:03,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 154 transitions, 666 flow [2024-11-08 17:01:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:01:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:01:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1066 transitions. [2024-11-08 17:01:03,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42811244979919677 [2024-11-08 17:01:03,236 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 380 flow. Second operand 15 states and 1066 transitions. [2024-11-08 17:01:03,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 154 transitions, 666 flow [2024-11-08 17:01:03,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 154 transitions, 664 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:01:03,246 INFO L231 Difference]: Finished difference. Result has 167 places, 150 transitions, 512 flow [2024-11-08 17:01:03,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=512, PETRI_PLACES=167, PETRI_TRANSITIONS=150} [2024-11-08 17:01:03,248 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 35 predicate places. [2024-11-08 17:01:03,248 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 150 transitions, 512 flow [2024-11-08 17:01:03,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 66.72222222222223) internal successors, (1201), 18 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:03,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:03,249 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:03,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 17:01:03,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 17:01:03,451 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 17:01:03,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:03,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1156262593, now seen corresponding path program 2 times [2024-11-08 17:01:03,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:03,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362560918] [2024-11-08 17:01:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:03,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:04,009 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 17:01:04,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:04,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362560918] [2024-11-08 17:01:04,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362560918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554535552] [2024-11-08 17:01:04,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:01:04,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:04,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:04,013 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:04,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 17:01:04,213 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:01:04,213 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:01:04,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:01:04,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:04,324 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 17:01:04,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:01:04,582 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 17:01:04,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554535552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:01:04,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:01:04,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 17:01:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805576061] [2024-11-08 17:01:04,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:01:04,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:01:04,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:01:04,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:01:04,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 17:01:04,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 150 transitions, 512 flow. Second operand has 23 states, 23 states have (on average 66.73913043478261) internal successors, (1535), 23 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:04,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:04,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 17:01:04,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:09,752 INFO L124 PetriNetUnfolderBase]: 16754/36182 cut-off events. [2024-11-08 17:01:09,752 INFO L125 PetriNetUnfolderBase]: For 768/1462 co-relation queries the response was YES. [2024-11-08 17:01:09,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61411 conditions, 36182 events. 16754/36182 cut-off events. For 768/1462 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 372371 event pairs, 15174 based on Foata normal form. 19/32755 useless extension candidates. Maximal degree in co-relation 61181. Up to 24517 conditions per place. [2024-11-08 17:01:10,049 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 76 selfloop transitions, 21 changer transitions 0/163 dead transitions. [2024-11-08 17:01:10,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 163 transitions, 850 flow [2024-11-08 17:01:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:01:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:01:10,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1464 transitions. [2024-11-08 17:01:10,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4199655765920826 [2024-11-08 17:01:10,056 INFO L175 Difference]: Start difference. First operand has 167 places, 150 transitions, 512 flow. Second operand 21 states and 1464 transitions. [2024-11-08 17:01:10,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 163 transitions, 850 flow [2024-11-08 17:01:10,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 163 transitions, 810 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-08 17:01:10,065 INFO L231 Difference]: Finished difference. Result has 187 places, 157 transitions, 618 flow [2024-11-08 17:01:10,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=618, PETRI_PLACES=187, PETRI_TRANSITIONS=157} [2024-11-08 17:01:10,066 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 55 predicate places. [2024-11-08 17:01:10,067 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 157 transitions, 618 flow [2024-11-08 17:01:10,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 66.73913043478261) internal successors, (1535), 23 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:10,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:10,068 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:10,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 17:01:10,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 17:01:10,269 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 17:01:10,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:10,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1092453490, now seen corresponding path program 3 times [2024-11-08 17:01:10,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:10,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708516822] [2024-11-08 17:01:10,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:10,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:01:10,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708516822] [2024-11-08 17:01:10,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708516822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:10,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453563339] [2024-11-08 17:01:10,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 17:01:10,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:10,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:10,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:10,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:01:10,625 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 17:01:10,626 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:01:10,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:01:10,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:10,678 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:01:10,678 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:01:10,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453563339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:10,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:01:10,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-08 17:01:10,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904183196] [2024-11-08 17:01:10,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:10,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:01:10,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:10,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:01:10,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:01:10,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2024-11-08 17:01:10,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 157 transitions, 618 flow. Second operand has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:10,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:10,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2024-11-08 17:01:10,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:16,042 INFO L124 PetriNetUnfolderBase]: 20418/39072 cut-off events. [2024-11-08 17:01:16,042 INFO L125 PetriNetUnfolderBase]: For 1613/1613 co-relation queries the response was YES. [2024-11-08 17:01:16,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71168 conditions, 39072 events. 20418/39072 cut-off events. For 1613/1613 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 369758 event pairs, 2448 based on Foata normal form. 361/35961 useless extension candidates. Maximal degree in co-relation 70935. Up to 22232 conditions per place. [2024-11-08 17:01:16,366 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 158 selfloop transitions, 6 changer transitions 0/228 dead transitions. [2024-11-08 17:01:16,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 228 transitions, 1086 flow [2024-11-08 17:01:16,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:01:16,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:01:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-08 17:01:16,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978915662650602 [2024-11-08 17:01:16,369 INFO L175 Difference]: Start difference. First operand has 187 places, 157 transitions, 618 flow. Second operand 4 states and 397 transitions. [2024-11-08 17:01:16,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 228 transitions, 1086 flow [2024-11-08 17:01:16,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 228 transitions, 1060 flow, removed 1 selfloop flow, removed 12 redundant places. [2024-11-08 17:01:16,390 INFO L231 Difference]: Finished difference. Result has 177 places, 156 transitions, 600 flow [2024-11-08 17:01:16,390 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=600, PETRI_PLACES=177, PETRI_TRANSITIONS=156} [2024-11-08 17:01:16,391 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 45 predicate places. [2024-11-08 17:01:16,391 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 156 transitions, 600 flow [2024-11-08 17:01:16,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:16,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:16,392 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:16,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 17:01:16,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88c099d8-43de-4433-8ec7-d45655aa56bb/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 17:01:16,596 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 17:01:16,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:16,597 INFO L85 PathProgramCache]: Analyzing trace with hash 493681093, now seen corresponding path program 1 times [2024-11-08 17:01:16,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:16,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693042596] [2024-11-08 17:01:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-11-08 17:01:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:16,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693042596] [2024-11-08 17:01:16,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693042596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:16,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:01:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197877843] [2024-11-08 17:01:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:16,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:01:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:16,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:01:16,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:01:16,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2024-11-08 17:01:16,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 156 transitions, 600 flow. Second operand has 4 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:16,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:16,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2024-11-08 17:01:16,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:21,935 INFO L124 PetriNetUnfolderBase]: 19315/37588 cut-off events. [2024-11-08 17:01:21,935 INFO L125 PetriNetUnfolderBase]: For 3454/3454 co-relation queries the response was YES. [2024-11-08 17:01:22,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68630 conditions, 37588 events. 19315/37588 cut-off events. For 3454/3454 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 360233 event pairs, 1746 based on Foata normal form. 741/35500 useless extension candidates. Maximal degree in co-relation 68409. Up to 24432 conditions per place. [2024-11-08 17:01:22,479 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 157 selfloop transitions, 6 changer transitions 0/227 dead transitions. [2024-11-08 17:01:22,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 227 transitions, 1064 flow [2024-11-08 17:01:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:01:22,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:01:22,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-08 17:01:22,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978915662650602 [2024-11-08 17:01:22,481 INFO L175 Difference]: Start difference. First operand has 177 places, 156 transitions, 600 flow. Second operand 4 states and 397 transitions. [2024-11-08 17:01:22,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 227 transitions, 1064 flow [2024-11-08 17:01:22,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 227 transitions, 1052 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:01:22,494 INFO L231 Difference]: Finished difference. Result has 177 places, 155 transitions, 600 flow [2024-11-08 17:01:22,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=600, PETRI_PLACES=177, PETRI_TRANSITIONS=155} [2024-11-08 17:01:22,495 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 45 predicate places. [2024-11-08 17:01:22,495 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 155 transitions, 600 flow [2024-11-08 17:01:22,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:22,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:22,495 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:22,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:01:22,496 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-08 17:01:22,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:22,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1143562816, now seen corresponding path program 1 times [2024-11-08 17:01:22,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:22,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369856125] [2024-11-08 17:01:22,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:22,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:01:23,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:23,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369856125] [2024-11-08 17:01:23,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369856125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:23,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:23,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:01:23,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555316758] [2024-11-08 17:01:23,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:23,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:01:23,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:23,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:01:23,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:01:24,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2024-11-08 17:01:24,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 155 transitions, 600 flow. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:01:24,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:24,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2024-11-08 17:01:24,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand