./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/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_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/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_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/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 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:13:57,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:13:57,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:13:57,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:13:57,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:13:57,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:13:57,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:13:57,783 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:13:57,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:13:57,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:13:57,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:13:57,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:13:57,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:13:57,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:13:57,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:13:57,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:13:57,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:13:57,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:13:57,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:13:57,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:13:57,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:13:57,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:13:57,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:13:57,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:13:57,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:13:57,792 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:13:57,792 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:13:57,793 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:13:57,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:13:57,793 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:13:57,794 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:13:57,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:13:57,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:13:57,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:13:57,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:13:57,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:13:57,796 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:13:57,796 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:13:57,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:13:57,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:13:57,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:13:57,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:13:57,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:13:57,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:13:57,803 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_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2024-11-08 19:13:58,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:13:58,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:13:58,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:13:58,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:13:58,121 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:13:58,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i Unable to find full path for "g++" [2024-11-08 19:14:00,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:14:00,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:14:00,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-08 19:14:00,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/data/296cd2c06/27c5df776ae5465db032aad8dafeb60b/FLAGe8f2cd821 [2024-11-08 19:14:00,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/data/296cd2c06/27c5df776ae5465db032aad8dafeb60b [2024-11-08 19:14:00,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:14:00,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:14:00,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:14:00,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:14:00,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:14:00,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:14:00" (1/1) ... [2024-11-08 19:14:00,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7105557d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:00, skipping insertion in model container [2024-11-08 19:14:00,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:14:00" (1/1) ... [2024-11-08 19:14:00,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:14:01,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:14:01,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:14:01,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:14:01,324 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:14:01,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01 WrapperNode [2024-11-08 19:14:01,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:14:01,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:14:01,326 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:14:01,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:14:01,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,418 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 277 [2024-11-08 19:14:01,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:14:01,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:14:01,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:14:01,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:14:01,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,443 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,474 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [70, 2, 5, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [60, 2, 5, 0]. The 5 writes are split as follows [4, 0, 0, 1]. [2024-11-08 19:14:01,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,507 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:14:01,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:14:01,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:14:01,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:14:01,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (1/1) ... [2024-11-08 19:14:01,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:14:01,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:01,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:14:01,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:14:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:14:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:14:01,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:14:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:14:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:14:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:14:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:14:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:14:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:14:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:14:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:14:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:14:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:14:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 19:14:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 19:14:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:14:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:14:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:14:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:14:01,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:14:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:14:01,590 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 19:14:01,797 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:14:01,799 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:14:02,346 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:14:02,346 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:14:03,041 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:14:03,042 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 19:14:03,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:14:03 BoogieIcfgContainer [2024-11-08 19:14:03,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:14:03,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:14:03,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:14:03,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:14:03,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:14:00" (1/3) ... [2024-11-08 19:14:03,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dda6f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:14:03, skipping insertion in model container [2024-11-08 19:14:03,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:14:01" (2/3) ... [2024-11-08 19:14:03,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dda6f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:14:03, skipping insertion in model container [2024-11-08 19:14:03,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:14:03" (3/3) ... [2024-11-08 19:14:03,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2024-11-08 19:14:03,070 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:14:03,070 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 19:14:03,071 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:14:03,153 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 19:14:03,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 120 transitions, 247 flow [2024-11-08 19:14:03,317 INFO L124 PetriNetUnfolderBase]: 40/173 cut-off events. [2024-11-08 19:14:03,317 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 19:14:03,323 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 19:14:03,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 120 transitions, 247 flow [2024-11-08 19:14:03,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 119 transitions, 245 flow [2024-11-08 19:14:03,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:14:03,352 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;@403a1406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:14:03,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-08 19:14:03,360 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:14:03,360 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 19:14:03,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:14:03,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:03,361 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 19:14:03,362 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 19:14:03,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash 23366332, now seen corresponding path program 1 times [2024-11-08 19:14:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:03,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008373112] [2024-11-08 19:14:03,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:03,822 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 19:14:03,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:03,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008373112] [2024-11-08 19:14:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008373112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:03,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:03,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:14:03,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347939482] [2024-11-08 19:14:03,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:03,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:03,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:03,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 120 [2024-11-08 19:14:03,911 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 19:14:03,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:03,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 120 [2024-11-08 19:14:03,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:04,374 INFO L124 PetriNetUnfolderBase]: 438/1383 cut-off events. [2024-11-08 19:14:04,375 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 19:14:04,385 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 19:14:04,394 INFO L140 encePairwiseOnDemand]: 93/120 looper letters, 48 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2024-11-08 19:14:04,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 101 transitions, 311 flow [2024-11-08 19:14:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2024-11-08 19:14:04,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2024-11-08 19:14:04,415 INFO L175 Difference]: Start difference. First operand has 96 places, 119 transitions, 245 flow. Second operand 4 states and 275 transitions. [2024-11-08 19:14:04,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 101 transitions, 311 flow [2024-11-08 19:14:04,420 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 19:14:04,425 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 231 flow [2024-11-08 19:14:04,427 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 19:14:04,432 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-08 19:14:04,433 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 231 flow [2024-11-08 19:14:04,434 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 19:14:04,434 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:04,434 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 19:14:04,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:14:04,435 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 19:14:04,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1404744769, now seen corresponding path program 1 times [2024-11-08 19:14:04,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:04,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76386735] [2024-11-08 19:14:04,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:04,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:04,595 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 19:14:04,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:04,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76386735] [2024-11-08 19:14:04,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76386735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:04,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252706911] [2024-11-08 19:14:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:04,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:04,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:04,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:14:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:04,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:14:04,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:04,827 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 19:14:04,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:04,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252706911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:04,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:04,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 19:14:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433821698] [2024-11-08 19:14:04,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:04,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:14:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:14:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:14:04,850 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 120 [2024-11-08 19:14:04,851 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 19:14:04,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:04,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 120 [2024-11-08 19:14:04,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:05,211 INFO L124 PetriNetUnfolderBase]: 438/1382 cut-off events. [2024-11-08 19:14:05,212 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-08 19:14:05,215 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 19:14:05,220 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 44 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-11-08 19:14:05,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 327 flow [2024-11-08 19:14:05,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:14:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 351 transitions. [2024-11-08 19:14:05,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4875 [2024-11-08 19:14:05,223 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 231 flow. Second operand 6 states and 351 transitions. [2024-11-08 19:14:05,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 327 flow [2024-11-08 19:14:05,225 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 19:14:05,227 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 237 flow [2024-11-08 19:14:05,228 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 19:14:05,228 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2024-11-08 19:14:05,229 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 237 flow [2024-11-08 19:14:05,229 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 19:14:05,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:05,230 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 19:14:05,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:05,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:05,434 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 19:14:05,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:05,435 INFO L85 PathProgramCache]: Analyzing trace with hash 597415597, now seen corresponding path program 1 times [2024-11-08 19:14:05,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:05,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470534886] [2024-11-08 19:14:05,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:05,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:05,516 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 19:14:05,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:05,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470534886] [2024-11-08 19:14:05,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470534886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:05,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:05,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:05,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641214430] [2024-11-08 19:14:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:05,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:05,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:05,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:05,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 19:14:05,541 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 19:14:05,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:05,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 19:14:05,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:05,858 INFO L124 PetriNetUnfolderBase]: 437/1380 cut-off events. [2024-11-08 19:14:05,858 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-08 19:14:05,861 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 19:14:05,865 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 44 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2024-11-08 19:14:05,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 331 flow [2024-11-08 19:14:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:05,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-08 19:14:05,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5125 [2024-11-08 19:14:05,868 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 237 flow. Second operand 4 states and 246 transitions. [2024-11-08 19:14:05,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 331 flow [2024-11-08 19:14:05,869 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 19:14:05,871 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 239 flow [2024-11-08 19:14:05,872 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 19:14:05,872 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-08 19:14:05,873 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 239 flow [2024-11-08 19:14:05,873 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 19:14:05,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:05,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:05,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:14:05,874 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 19:14:05,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:05,874 INFO L85 PathProgramCache]: Analyzing trace with hash 297938682, now seen corresponding path program 1 times [2024-11-08 19:14:05,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:05,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085700490] [2024-11-08 19:14:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:05,967 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 19:14:05,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:05,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085700490] [2024-11-08 19:14:05,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085700490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:05,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531441676] [2024-11-08 19:14:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:05,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:05,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:05,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:05,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:14:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:06,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:14:06,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:06,125 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 19:14:06,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:06,168 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 19:14:06,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531441676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:06,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:06,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 19:14:06,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60939886] [2024-11-08 19:14:06,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:06,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:14:06,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:06,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:14:06,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:14:06,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 19:14:06,196 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 19:14:06,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:06,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 19:14:06,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:06,542 INFO L124 PetriNetUnfolderBase]: 437/1385 cut-off events. [2024-11-08 19:14:06,542 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-08 19:14:06,545 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 19:14:06,550 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 47 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2024-11-08 19:14:06,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 372 flow [2024-11-08 19:14:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:14:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:14:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 399 transitions. [2024-11-08 19:14:06,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-11-08 19:14:06,552 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 239 flow. Second operand 7 states and 399 transitions. [2024-11-08 19:14:06,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 372 flow [2024-11-08 19:14:06,554 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 19:14:06,558 INFO L231 Difference]: Finished difference. Result has 110 places, 102 transitions, 277 flow [2024-11-08 19:14:06,559 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 19:14:06,560 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 14 predicate places. [2024-11-08 19:14:06,560 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 102 transitions, 277 flow [2024-11-08 19:14:06,561 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 19:14:06,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:06,561 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:06,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:14:06,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:06,765 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 19:14:06,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:06,766 INFO L85 PathProgramCache]: Analyzing trace with hash 316673412, now seen corresponding path program 2 times [2024-11-08 19:14:06,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:06,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172049623] [2024-11-08 19:14:06,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:06,902 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 19:14:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:06,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172049623] [2024-11-08 19:14:06,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172049623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:06,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:06,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:06,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331401383] [2024-11-08 19:14:06,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:06,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:06,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:06,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:06,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:06,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 120 [2024-11-08 19:14:06,927 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 19:14:06,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:06,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 120 [2024-11-08 19:14:06,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:07,277 INFO L124 PetriNetUnfolderBase]: 492/1382 cut-off events. [2024-11-08 19:14:07,278 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-08 19:14:07,281 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 19:14:07,286 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 87 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-08 19:14:07,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 137 transitions, 527 flow [2024-11-08 19:14:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-11-08 19:14:07,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5875 [2024-11-08 19:14:07,288 INFO L175 Difference]: Start difference. First operand has 110 places, 102 transitions, 277 flow. Second operand 4 states and 282 transitions. [2024-11-08 19:14:07,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 137 transitions, 527 flow [2024-11-08 19:14:07,291 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 19:14:07,293 INFO L231 Difference]: Finished difference. Result has 110 places, 100 transitions, 279 flow [2024-11-08 19:14:07,293 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 19:14:07,294 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 14 predicate places. [2024-11-08 19:14:07,294 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 100 transitions, 279 flow [2024-11-08 19:14:07,294 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 19:14:07,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:07,295 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:07,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:14:07,295 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 19:14:07,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:07,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1656018598, now seen corresponding path program 1 times [2024-11-08 19:14:07,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:07,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517753803] [2024-11-08 19:14:07,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:07,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:07,497 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 19:14:07,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:07,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517753803] [2024-11-08 19:14:07,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517753803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:07,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077910363] [2024-11-08 19:14:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:07,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:07,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:07,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:07,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:14:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:07,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:14:07,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:07,689 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 19:14:07,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:07,814 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 19:14:07,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077910363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:07,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:07,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 19:14:07,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106078073] [2024-11-08 19:14:07,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:07,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:14:07,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:07,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:14:07,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:14:07,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 19:14:07,843 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 19:14:07,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:07,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 19:14:07,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:08,316 INFO L124 PetriNetUnfolderBase]: 439/1346 cut-off events. [2024-11-08 19:14:08,316 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-08 19:14:08,320 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 19:14:08,325 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 51 selfloop transitions, 15 changer transitions 0/113 dead transitions. [2024-11-08 19:14:08,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 113 transitions, 521 flow [2024-11-08 19:14:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:14:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:14:08,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 805 transitions. [2024-11-08 19:14:08,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44722222222222224 [2024-11-08 19:14:08,329 INFO L175 Difference]: Start difference. First operand has 110 places, 100 transitions, 279 flow. Second operand 15 states and 805 transitions. [2024-11-08 19:14:08,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 113 transitions, 521 flow [2024-11-08 19:14:08,331 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 19:14:08,334 INFO L231 Difference]: Finished difference. Result has 126 places, 109 transitions, 407 flow [2024-11-08 19:14:08,334 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 19:14:08,335 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 30 predicate places. [2024-11-08 19:14:08,335 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 109 transitions, 407 flow [2024-11-08 19:14:08,336 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 19:14:08,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:08,336 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:08,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:08,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:08,540 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 19:14:08,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1836160070, now seen corresponding path program 2 times [2024-11-08 19:14:08,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:08,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048172308] [2024-11-08 19:14:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:08,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:08,995 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 19:14:08,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:08,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048172308] [2024-11-08 19:14:08,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048172308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:08,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155070806] [2024-11-08 19:14:08,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:14:08,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:08,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:08,998 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:09,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:14:09,124 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:14:09,124 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:14:09,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:14:09,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:09,230 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 19:14:09,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:09,465 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 19:14:09,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155070806] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:09,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:09,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 19:14:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056665013] [2024-11-08 19:14:09,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:09,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:14:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:09,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:14:09,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:14:09,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 120 [2024-11-08 19:14:09,502 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 19:14:09,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:09,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 120 [2024-11-08 19:14:09,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:10,032 INFO L124 PetriNetUnfolderBase]: 439/1358 cut-off events. [2024-11-08 19:14:10,032 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-08 19:14:10,036 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 19:14:10,040 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 54 selfloop transitions, 21 changer transitions 0/122 dead transitions. [2024-11-08 19:14:10,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 122 transitions, 701 flow [2024-11-08 19:14:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:14:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 19:14:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1107 transitions. [2024-11-08 19:14:10,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4392857142857143 [2024-11-08 19:14:10,044 INFO L175 Difference]: Start difference. First operand has 126 places, 109 transitions, 407 flow. Second operand 21 states and 1107 transitions. [2024-11-08 19:14:10,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 122 transitions, 701 flow [2024-11-08 19:14:10,047 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 19:14:10,049 INFO L231 Difference]: Finished difference. Result has 146 places, 116 transitions, 513 flow [2024-11-08 19:14:10,049 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 19:14:10,050 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 50 predicate places. [2024-11-08 19:14:10,050 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 116 transitions, 513 flow [2024-11-08 19:14:10,051 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 19:14:10,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:10,051 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:10,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:10,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:10,252 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 19:14:10,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1097215305, now seen corresponding path program 3 times [2024-11-08 19:14:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3845978] [2024-11-08 19:14:10,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:10,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:14:10,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:14:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:14:10,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:14:10,365 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:14:10,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-08 19:14:10,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-08 19:14:10,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-08 19:14:10,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-08 19:14:10,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-08 19:14:10,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-08 19:14:10,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-08 19:14:10,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-08 19:14:10,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:14:10,374 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-08 19:14:10,380 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 19:14:10,381 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 19:14:10,426 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 19:14:10,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 166 transitions, 348 flow [2024-11-08 19:14:10,461 INFO L124 PetriNetUnfolderBase]: 67/294 cut-off events. [2024-11-08 19:14:10,462 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 19:14:10,464 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 19:14:10,464 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 166 transitions, 348 flow [2024-11-08 19:14:10,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 166 transitions, 348 flow [2024-11-08 19:14:10,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:14:10,471 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;@403a1406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:14:10,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 19:14:10,477 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:14:10,477 INFO L124 PetriNetUnfolderBase]: 2/9 cut-off events. [2024-11-08 19:14:10,477 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:14:10,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:10,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 19:14:10,478 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 19:14:10,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash 28476476, now seen corresponding path program 1 times [2024-11-08 19:14:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:10,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928782369] [2024-11-08 19:14:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:10,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:10,541 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 19:14:10,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:10,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928782369] [2024-11-08 19:14:10,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928782369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:10,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:10,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:14:10,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309013180] [2024-11-08 19:14:10,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:10,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:10,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:10,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2024-11-08 19:14:10,554 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 19:14:10,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:10,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2024-11-08 19:14:10,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:15,008 INFO L124 PetriNetUnfolderBase]: 16531/35368 cut-off events. [2024-11-08 19:14:15,008 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-08 19:14:15,083 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 19:14:15,219 INFO L140 encePairwiseOnDemand]: 129/166 looper letters, 69 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-08 19:14:15,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 436 flow [2024-11-08 19:14:15,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-08 19:14:15,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572289156626506 [2024-11-08 19:14:15,222 INFO L175 Difference]: Start difference. First operand has 132 places, 166 transitions, 348 flow. Second operand 4 states and 370 transitions. [2024-11-08 19:14:15,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 436 flow [2024-11-08 19:14:15,225 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 19:14:15,227 INFO L231 Difference]: Finished difference. Result has 137 places, 138 transitions, 314 flow [2024-11-08 19:14:15,228 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 19:14:15,230 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 5 predicate places. [2024-11-08 19:14:15,230 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 138 transitions, 314 flow [2024-11-08 19:14:15,230 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 19:14:15,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:15,231 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 19:14:15,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:14:15,232 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 19:14:15,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:15,232 INFO L85 PathProgramCache]: Analyzing trace with hash 566093633, now seen corresponding path program 1 times [2024-11-08 19:14:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:15,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039926247] [2024-11-08 19:14:15,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:15,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:15,321 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 19:14:15,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:15,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039926247] [2024-11-08 19:14:15,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039926247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:15,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103445909] [2024-11-08 19:14:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:15,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:15,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:15,325 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:15,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:14:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:15,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:14:15,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:15,463 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 19:14:15,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:15,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103445909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:15,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:15,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 19:14:15,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494044233] [2024-11-08 19:14:15,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:15,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:14:15,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:15,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:14:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:14:15,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 166 [2024-11-08 19:14:15,487 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 19:14:15,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:15,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 166 [2024-11-08 19:14:15,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:18,857 INFO L124 PetriNetUnfolderBase]: 16531/35367 cut-off events. [2024-11-08 19:14:18,857 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-08 19:14:18,947 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 19:14:19,076 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 65 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2024-11-08 19:14:19,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 452 flow [2024-11-08 19:14:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:14:19,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:14:19,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2024-11-08 19:14:19,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46987951807228917 [2024-11-08 19:14:19,078 INFO L175 Difference]: Start difference. First operand has 137 places, 138 transitions, 314 flow. Second operand 6 states and 468 transitions. [2024-11-08 19:14:19,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 452 flow [2024-11-08 19:14:19,080 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 19:14:19,082 INFO L231 Difference]: Finished difference. Result has 140 places, 137 transitions, 320 flow [2024-11-08 19:14:19,082 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 19:14:19,083 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 8 predicate places. [2024-11-08 19:14:19,083 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 137 transitions, 320 flow [2024-11-08 19:14:19,084 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 19:14:19,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:19,084 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 19:14:19,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:14:19,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:19,286 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 19:14:19,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:19,286 INFO L85 PathProgramCache]: Analyzing trace with hash 369034323, now seen corresponding path program 1 times [2024-11-08 19:14:19,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:19,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230611505] [2024-11-08 19:14:19,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:19,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:19,353 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 19:14:19,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230611505] [2024-11-08 19:14:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230611505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:19,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460082955] [2024-11-08 19:14:19,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:19,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:19,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 19:14:19,376 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 19:14:19,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:19,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 19:14:19,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:22,311 INFO L124 PetriNetUnfolderBase]: 16530/35365 cut-off events. [2024-11-08 19:14:22,311 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-08 19:14:22,401 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 19:14:22,507 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 65 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-08 19:14:22,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 136 transitions, 456 flow [2024-11-08 19:14:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-08 19:14:22,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49849397590361444 [2024-11-08 19:14:22,510 INFO L175 Difference]: Start difference. First operand has 140 places, 137 transitions, 320 flow. Second operand 4 states and 331 transitions. [2024-11-08 19:14:22,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 136 transitions, 456 flow [2024-11-08 19:14:22,511 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 19:14:22,513 INFO L231 Difference]: Finished difference. Result has 139 places, 136 transitions, 322 flow [2024-11-08 19:14:22,513 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 19:14:22,514 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 7 predicate places. [2024-11-08 19:14:22,514 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 136 transitions, 322 flow [2024-11-08 19:14:22,514 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 19:14:22,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:22,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:22,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:14:22,515 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 19:14:22,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash -180191066, now seen corresponding path program 1 times [2024-11-08 19:14:22,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:22,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350502550] [2024-11-08 19:14:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:22,860 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 19:14:22,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:22,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350502550] [2024-11-08 19:14:22,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350502550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785508309] [2024-11-08 19:14:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:22,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:22,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:22,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:22,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:14:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:22,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:14:22,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:23,021 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 19:14:23,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:23,060 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 19:14:23,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785508309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:23,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:23,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 19:14:23,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718019565] [2024-11-08 19:14:23,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:23,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:14:23,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:14:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:14:23,086 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 19:14:23,087 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 19:14:23,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:23,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 19:14:23,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:26,618 INFO L124 PetriNetUnfolderBase]: 16530/35370 cut-off events. [2024-11-08 19:14:26,619 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-08 19:14:26,685 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 19:14:26,775 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 68 selfloop transitions, 7 changer transitions 0/140 dead transitions. [2024-11-08 19:14:26,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 140 transitions, 497 flow [2024-11-08 19:14:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:14:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:14:26,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 532 transitions. [2024-11-08 19:14:26,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4578313253012048 [2024-11-08 19:14:26,779 INFO L175 Difference]: Start difference. First operand has 139 places, 136 transitions, 322 flow. Second operand 7 states and 532 transitions. [2024-11-08 19:14:26,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 140 transitions, 497 flow [2024-11-08 19:14:26,781 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 19:14:26,783 INFO L231 Difference]: Finished difference. Result has 146 places, 139 transitions, 360 flow [2024-11-08 19:14:26,783 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 19:14:26,784 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 14 predicate places. [2024-11-08 19:14:26,784 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 139 transitions, 360 flow [2024-11-08 19:14:26,785 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 19:14:26,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:26,785 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:26,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 19:14:26,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 19:14:26,986 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 19:14:26,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash -231796176, now seen corresponding path program 2 times [2024-11-08 19:14:26,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:26,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59390556] [2024-11-08 19:14:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:27,086 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 19:14:27,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:27,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59390556] [2024-11-08 19:14:27,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59390556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:27,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:27,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:27,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707328623] [2024-11-08 19:14:27,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:27,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:27,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:27,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:27,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:27,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 166 [2024-11-08 19:14:27,102 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 19:14:27,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:27,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 166 [2024-11-08 19:14:27,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:31,352 INFO L124 PetriNetUnfolderBase]: 20272/41516 cut-off events. [2024-11-08 19:14:31,352 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-08 19:14:31,465 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 19:14:31,619 INFO L140 encePairwiseOnDemand]: 159/166 looper letters, 112 selfloop transitions, 3 changer transitions 0/178 dead transitions. [2024-11-08 19:14:31,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 178 transitions, 668 flow [2024-11-08 19:14:31,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:31,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2024-11-08 19:14:31,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5587349397590361 [2024-11-08 19:14:31,622 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 360 flow. Second operand 4 states and 371 transitions. [2024-11-08 19:14:31,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 178 transitions, 668 flow [2024-11-08 19:14:31,625 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 19:14:31,628 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 380 flow [2024-11-08 19:14:31,628 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 19:14:31,629 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 17 predicate places. [2024-11-08 19:14:31,630 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 380 flow [2024-11-08 19:14:31,630 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 19:14:31,630 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:31,630 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:31,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:14:31,631 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 19:14:31,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:31,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1187229909, now seen corresponding path program 1 times [2024-11-08 19:14:31,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:31,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766751582] [2024-11-08 19:14:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:31,821 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 19:14:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766751582] [2024-11-08 19:14:31,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766751582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:31,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987711498] [2024-11-08 19:14:31,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:31,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:31,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:31,824 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:31,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:14:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:31,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:14:31,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:32,049 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 19:14:32,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:32,372 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 19:14:32,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987711498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:32,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:32,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 19:14:32,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166767921] [2024-11-08 19:14:32,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:32,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:14:32,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:14:32,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:14:32,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 19:14:32,406 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 19:14:32,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:32,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 19:14:32,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:36,771 INFO L124 PetriNetUnfolderBase]: 16754/36170 cut-off events. [2024-11-08 19:14:36,771 INFO L125 PetriNetUnfolderBase]: For 581/1275 co-relation queries the response was YES. [2024-11-08 19:14:36,900 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 19:14:37,044 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 73 selfloop transitions, 15 changer transitions 0/154 dead transitions. [2024-11-08 19:14:37,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 154 transitions, 666 flow [2024-11-08 19:14:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:14:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:14:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1066 transitions. [2024-11-08 19:14:37,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42811244979919677 [2024-11-08 19:14:37,050 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 380 flow. Second operand 15 states and 1066 transitions. [2024-11-08 19:14:37,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 154 transitions, 666 flow [2024-11-08 19:14:37,055 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 19:14:37,058 INFO L231 Difference]: Finished difference. Result has 167 places, 150 transitions, 512 flow [2024-11-08 19:14:37,058 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 19:14:37,059 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 35 predicate places. [2024-11-08 19:14:37,059 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 150 transitions, 512 flow [2024-11-08 19:14:37,060 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 19:14:37,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:37,060 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:37,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 19:14:37,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 19:14:37,261 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 19:14:37,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:37,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1156262593, now seen corresponding path program 2 times [2024-11-08 19:14:37,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:37,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453120279] [2024-11-08 19:14:37,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:37,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:37,729 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 19:14:37,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:37,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453120279] [2024-11-08 19:14:37,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453120279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:37,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962191294] [2024-11-08 19:14:37,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:14:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:37,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:37,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:37,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 19:14:37,910 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:14:37,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:14:37,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:14:37,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:38,025 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 19:14:38,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:14:38,328 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 19:14:38,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962191294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:14:38,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:14:38,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 19:14:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050903642] [2024-11-08 19:14:38,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:14:38,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 19:14:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 19:14:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:14:38,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 166 [2024-11-08 19:14:38,384 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 19:14:38,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:38,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 166 [2024-11-08 19:14:38,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:44,254 INFO L124 PetriNetUnfolderBase]: 16754/36182 cut-off events. [2024-11-08 19:14:44,254 INFO L125 PetriNetUnfolderBase]: For 768/1462 co-relation queries the response was YES. [2024-11-08 19:14:44,434 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 19:14:44,599 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 76 selfloop transitions, 21 changer transitions 0/163 dead transitions. [2024-11-08 19:14:44,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 163 transitions, 850 flow [2024-11-08 19:14:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:14:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 19:14:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1464 transitions. [2024-11-08 19:14:44,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4199655765920826 [2024-11-08 19:14:44,606 INFO L175 Difference]: Start difference. First operand has 167 places, 150 transitions, 512 flow. Second operand 21 states and 1464 transitions. [2024-11-08 19:14:44,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 163 transitions, 850 flow [2024-11-08 19:14:44,613 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 19:14:44,618 INFO L231 Difference]: Finished difference. Result has 187 places, 157 transitions, 618 flow [2024-11-08 19:14:44,618 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 19:14:44,619 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 55 predicate places. [2024-11-08 19:14:44,619 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 157 transitions, 618 flow [2024-11-08 19:14:44,620 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 19:14:44,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:44,621 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:44,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 19:14:44,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:44,826 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 19:14:44,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1092453490, now seen corresponding path program 3 times [2024-11-08 19:14:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:44,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793324516] [2024-11-08 19:14:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:44,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:45,033 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 19:14:45,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:45,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793324516] [2024-11-08 19:14:45,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793324516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:14:45,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146006753] [2024-11-08 19:14:45,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:14:45,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:14:45,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:14:45,036 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:14:45,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 19:14:45,197 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 19:14:45,198 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:14:45,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:14:45,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:14:45,263 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 19:14:45,263 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:14:45,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146006753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:45,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:14:45,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-08 19:14:45,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408948460] [2024-11-08 19:14:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:45,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:14:45,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:45,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:14:45,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:14:45,288 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2024-11-08 19:14:45,289 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 19:14:45,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:45,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2024-11-08 19:14:45,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:51,290 INFO L124 PetriNetUnfolderBase]: 20418/39072 cut-off events. [2024-11-08 19:14:51,290 INFO L125 PetriNetUnfolderBase]: For 1613/1613 co-relation queries the response was YES. [2024-11-08 19:14:51,521 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 19:14:51,671 INFO L140 encePairwiseOnDemand]: 161/166 looper letters, 158 selfloop transitions, 6 changer transitions 0/228 dead transitions. [2024-11-08 19:14:51,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 228 transitions, 1086 flow [2024-11-08 19:14:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-08 19:14:51,674 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978915662650602 [2024-11-08 19:14:51,674 INFO L175 Difference]: Start difference. First operand has 187 places, 157 transitions, 618 flow. Second operand 4 states and 397 transitions. [2024-11-08 19:14:51,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 228 transitions, 1086 flow [2024-11-08 19:14:51,694 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 19:14:51,698 INFO L231 Difference]: Finished difference. Result has 177 places, 156 transitions, 600 flow [2024-11-08 19:14:51,698 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 19:14:51,699 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 45 predicate places. [2024-11-08 19:14:51,699 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 156 transitions, 600 flow [2024-11-08 19:14:51,700 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 19:14:51,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:51,700 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:14:51,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 19:14:51,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9818f437-d4c7-4ffb-a1f0-367172d9e1e2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 19:14:51,906 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 19:14:51,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:51,910 INFO L85 PathProgramCache]: Analyzing trace with hash 493681093, now seen corresponding path program 1 times [2024-11-08 19:14:51,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:51,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689840386] [2024-11-08 19:14:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:51,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:14:52,160 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 19:14:52,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:14:52,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689840386] [2024-11-08 19:14:52,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689840386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:14:52,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:14:52,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:14:52,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17793897] [2024-11-08 19:14:52,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:14:52,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:14:52,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:14:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:14:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:14:52,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 166 [2024-11-08 19:14:52,178 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 19:14:52,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:14:52,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 166 [2024-11-08 19:14:52,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:14:58,458 INFO L124 PetriNetUnfolderBase]: 19315/37588 cut-off events. [2024-11-08 19:14:58,458 INFO L125 PetriNetUnfolderBase]: For 3454/3454 co-relation queries the response was YES. [2024-11-08 19:14:58,638 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 19:14:58,721 INFO L140 encePairwiseOnDemand]: 160/166 looper letters, 157 selfloop transitions, 6 changer transitions 0/227 dead transitions. [2024-11-08 19:14:58,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 227 transitions, 1064 flow [2024-11-08 19:14:58,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:14:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:14:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-08 19:14:58,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5978915662650602 [2024-11-08 19:14:58,723 INFO L175 Difference]: Start difference. First operand has 177 places, 156 transitions, 600 flow. Second operand 4 states and 397 transitions. [2024-11-08 19:14:58,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 227 transitions, 1064 flow [2024-11-08 19:14:58,735 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 19:14:58,737 INFO L231 Difference]: Finished difference. Result has 177 places, 155 transitions, 600 flow [2024-11-08 19:14:58,737 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 19:14:58,737 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 45 predicate places. [2024-11-08 19:14:58,738 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 155 transitions, 600 flow [2024-11-08 19:14:58,738 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 19:14:58,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:14:58,738 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 19:14:58,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 19:14:58,738 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 19:14:58,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:14:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1143562816, now seen corresponding path program 1 times [2024-11-08 19:14:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:14:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520821975] [2024-11-08 19:14:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:14:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:14:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:15:00,488 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 19:15:00,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:15:00,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520821975] [2024-11-08 19:15:00,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520821975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:15:00,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:15:00,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:15:00,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387172473] [2024-11-08 19:15:00,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:15:00,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:15:00,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:15:00,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:15:00,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:15:00,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 166 [2024-11-08 19:15:00,509 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 19:15:00,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:15:00,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 166 [2024-11-08 19:15:00,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand