./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU --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 dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:31,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:31,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:10:32,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:32,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:32,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:32,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:32,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:32,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:10:32,047 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:10:32,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:32,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:32,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:32,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:32,051 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:32,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:32,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:32,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:32,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:32,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:32,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:32,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:32,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:32,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:32,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:32,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:10:32,060 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:32,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:32,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:32,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:32,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:32,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:32,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:10:32,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:32,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:32,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:32,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:32,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:32,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:32,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:32,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:32,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:32,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:32,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:32,065 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_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-10-31 22:10:32,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:32,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:32,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:32,397 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:32,397 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:32,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c Unable to find full path for "g++" [2024-10-31 22:10:34,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:34,660 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:34,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-10-31 22:10:34,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/data/3c0ac0855/93891242fc974c25a1bb17f1a01e8a26/FLAG60524042d [2024-10-31 22:10:34,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/data/3c0ac0855/93891242fc974c25a1bb17f1a01e8a26 [2024-10-31 22:10:34,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:34,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:34,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:34,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:34,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:34,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:34" (1/1) ... [2024-10-31 22:10:34,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb4d625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:34, skipping insertion in model container [2024-10-31 22:10:34,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:34" (1/1) ... [2024-10-31 22:10:34,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:35,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:35,060 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:35,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:35,121 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:35,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35 WrapperNode [2024-10-31 22:10:35,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:35,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:35,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:35,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:35,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,175 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-10-31 22:10:35,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:35,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:35,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:35,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:35,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,218 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-31 22:10:35,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:35,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:35,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:35,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:35,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (1/1) ... [2024-10-31 22:10:35,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:35,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:35,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:35,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:10:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:10:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:10:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:10:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:10:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:10:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:10:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:10:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:10:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:10:35,325 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:10:35,459 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:35,462 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:35,756 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:10:35,756 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:35,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:35,998 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:10:35,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:35 BoogieIcfgContainer [2024-10-31 22:10:35,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:36,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:36,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:36,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:36,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:34" (1/3) ... [2024-10-31 22:10:36,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30211a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:36, skipping insertion in model container [2024-10-31 22:10:36,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:35" (2/3) ... [2024-10-31 22:10:36,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30211a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:36, skipping insertion in model container [2024-10-31 22:10:36,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:35" (3/3) ... [2024-10-31 22:10:36,008 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-10-31 22:10:36,024 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:36,024 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:10:36,024 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:10:36,094 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:10:36,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 103 flow [2024-10-31 22:10:36,182 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2024-10-31 22:10:36,183 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:10:36,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 3/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-10-31 22:10:36,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 41 transitions, 103 flow [2024-10-31 22:10:36,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 82 flow [2024-10-31 22:10:36,207 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:36,216 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;@5ed6d2cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:36,216 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 22:10:36,221 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:36,222 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-31 22:10:36,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:36,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:36,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-31 22:10:36,223 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:36,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:36,231 INFO L85 PathProgramCache]: Analyzing trace with hash 416905, now seen corresponding path program 1 times [2024-10-31 22:10:36,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:36,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284608807] [2024-10-31 22:10:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:36,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:36,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:36,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284608807] [2024-10-31 22:10:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284608807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:36,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:36,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658053784] [2024-10-31 22:10:36,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:36,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:10:36,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:36,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:10:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:10:36,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-31 22:10:36,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:10:36,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:36,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-31 22:10:36,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:37,087 INFO L124 PetriNetUnfolderBase]: 215/410 cut-off events. [2024-10-31 22:10:37,089 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-31 22:10:37,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 410 events. 215/410 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1895 event pairs, 161 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 722. Up to 333 conditions per place. [2024-10-31 22:10:37,098 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 21 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2024-10-31 22:10:37,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 138 flow [2024-10-31 22:10:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:10:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:10:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-10-31 22:10:37,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5548780487804879 [2024-10-31 22:10:37,116 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 82 flow. Second operand 4 states and 91 transitions. [2024-10-31 22:10:37,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 138 flow [2024-10-31 22:10:37,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:10:37,124 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 105 flow [2024-10-31 22:10:37,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2024-10-31 22:10:37,133 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2024-10-31 22:10:37,134 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 105 flow [2024-10-31 22:10:37,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:10:37,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:37,134 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-31 22:10:37,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:37,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:37,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:37,136 INFO L85 PathProgramCache]: Analyzing trace with hash -464474855, now seen corresponding path program 1 times [2024-10-31 22:10:37,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:37,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916341495] [2024-10-31 22:10:37,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:37,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:37,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:37,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916341495] [2024-10-31 22:10:37,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916341495] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283738880] [2024-10-31 22:10:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:37,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:37,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:37,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:37,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:10:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:37,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:10:37,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:37,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:10:37,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283738880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:37,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:10:37,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-31 22:10:37,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034677390] [2024-10-31 22:10:37,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:37,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:10:37,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:37,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:10:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:10:37,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-31 22:10:37,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-31 22:10:37,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:37,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-31 22:10:37,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:37,882 INFO L124 PetriNetUnfolderBase]: 215/409 cut-off events. [2024-10-31 22:10:37,883 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:10:37,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 409 events. 215/409 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1882 event pairs, 161 based on Foata normal form. 1/362 useless extension candidates. Maximal degree in co-relation 772. Up to 328 conditions per place. [2024-10-31 22:10:37,890 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 17 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2024-10-31 22:10:37,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 149 flow [2024-10-31 22:10:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:10:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:10:37,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2024-10-31 22:10:37,894 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.491869918699187 [2024-10-31 22:10:37,894 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 105 flow. Second operand 6 states and 121 transitions. [2024-10-31 22:10:37,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 149 flow [2024-10-31 22:10:37,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:37,898 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 112 flow [2024-10-31 22:10:37,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2024-10-31 22:10:37,899 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2024-10-31 22:10:37,900 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 112 flow [2024-10-31 22:10:37,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-31 22:10:37,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:37,901 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-31 22:10:37,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:38,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:38,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:38,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1513818204, now seen corresponding path program 1 times [2024-10-31 22:10:38,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:38,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135647253] [2024-10-31 22:10:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:38,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:38,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135647253] [2024-10-31 22:10:38,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135647253] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:38,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329953172] [2024-10-31 22:10:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:38,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:38,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:38,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:10:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:38,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:10:38,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:38,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329953172] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:38,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-31 22:10:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337458795] [2024-10-31 22:10:38,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:38,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:10:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:38,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:10:38,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:10:38,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-31 22:10:38,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 112 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-10-31 22:10:38,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:38,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-31 22:10:38,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:38,783 INFO L124 PetriNetUnfolderBase]: 218/421 cut-off events. [2024-10-31 22:10:38,783 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-31 22:10:38,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 421 events. 218/421 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1980 event pairs, 161 based on Foata normal form. 3/374 useless extension candidates. Maximal degree in co-relation 773. Up to 335 conditions per place. [2024-10-31 22:10:38,788 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 20 selfloop transitions, 13 changer transitions 0/46 dead transitions. [2024-10-31 22:10:38,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 232 flow [2024-10-31 22:10:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:10:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:10:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 196 transitions. [2024-10-31 22:10:38,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47804878048780486 [2024-10-31 22:10:38,792 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 112 flow. Second operand 10 states and 196 transitions. [2024-10-31 22:10:38,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 232 flow [2024-10-31 22:10:38,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 186 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-31 22:10:38,794 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 164 flow [2024-10-31 22:10:38,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=164, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-10-31 22:10:38,795 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-10-31 22:10:38,796 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 164 flow [2024-10-31 22:10:38,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-10-31 22:10:38,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:38,797 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:38,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:10:38,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:38,998 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:38,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:38,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1362020055, now seen corresponding path program 1 times [2024-10-31 22:10:38,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:38,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370915976] [2024-10-31 22:10:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:39,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:39,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370915976] [2024-10-31 22:10:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370915976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:39,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:39,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:39,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656484495] [2024-10-31 22:10:39,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:39,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:10:39,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:39,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:10:39,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:10:39,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 22:10:39,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:10:39,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:39,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 22:10:39,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:39,377 INFO L124 PetriNetUnfolderBase]: 544/978 cut-off events. [2024-10-31 22:10:39,377 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-10-31 22:10:39,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1942 conditions, 978 events. 544/978 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5016 event pairs, 219 based on Foata normal form. 26/930 useless extension candidates. Maximal degree in co-relation 1908. Up to 596 conditions per place. [2024-10-31 22:10:39,385 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 55 selfloop transitions, 4 changer transitions 0/70 dead transitions. [2024-10-31 22:10:39,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 338 flow [2024-10-31 22:10:39,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:10:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:10:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-10-31 22:10:39,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6646341463414634 [2024-10-31 22:10:39,388 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 164 flow. Second operand 4 states and 109 transitions. [2024-10-31 22:10:39,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 338 flow [2024-10-31 22:10:39,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 327 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:39,391 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 182 flow [2024-10-31 22:10:39,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-10-31 22:10:39,392 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2024-10-31 22:10:39,392 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 182 flow [2024-10-31 22:10:39,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:10:39,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:39,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:39,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:10:39,393 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:39,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1072465311, now seen corresponding path program 1 times [2024-10-31 22:10:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:39,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416293417] [2024-10-31 22:10:39,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:39,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:39,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:39,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416293417] [2024-10-31 22:10:39,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416293417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:39,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:39,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:10:39,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897032141] [2024-10-31 22:10:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:39,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:10:39,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:39,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:10:39,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:10:39,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 22:10:39,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-10-31 22:10:39,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:39,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 22:10:39,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:39,805 INFO L124 PetriNetUnfolderBase]: 868/1459 cut-off events. [2024-10-31 22:10:39,805 INFO L125 PetriNetUnfolderBase]: For 465/640 co-relation queries the response was YES. [2024-10-31 22:10:39,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3340 conditions, 1459 events. 868/1459 cut-off events. For 465/640 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7518 event pairs, 456 based on Foata normal form. 97/1469 useless extension candidates. Maximal degree in co-relation 3304. Up to 915 conditions per place. [2024-10-31 22:10:39,819 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 59 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-10-31 22:10:39,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 75 transitions, 392 flow [2024-10-31 22:10:39,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:10:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:10:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-10-31 22:10:39,821 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-10-31 22:10:39,821 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 182 flow. Second operand 4 states and 107 transitions. [2024-10-31 22:10:39,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 75 transitions, 392 flow [2024-10-31 22:10:39,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 75 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:39,826 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 208 flow [2024-10-31 22:10:39,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-10-31 22:10:39,827 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2024-10-31 22:10:39,827 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 208 flow [2024-10-31 22:10:39,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-10-31 22:10:39,828 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:39,828 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:39,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:10:39,828 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:39,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:39,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1902183412, now seen corresponding path program 1 times [2024-10-31 22:10:39,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:39,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193614976] [2024-10-31 22:10:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:39,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:39,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:10:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:39,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193614976] [2024-10-31 22:10:39,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193614976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:39,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:39,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:39,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948032016] [2024-10-31 22:10:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:39,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:39,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:39,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:39,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:39,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 41 [2024-10-31 22:10:39,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:39,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:39,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 41 [2024-10-31 22:10:39,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:40,157 INFO L124 PetriNetUnfolderBase]: 543/964 cut-off events. [2024-10-31 22:10:40,157 INFO L125 PetriNetUnfolderBase]: For 452/596 co-relation queries the response was YES. [2024-10-31 22:10:40,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 964 events. 543/964 cut-off events. For 452/596 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4832 event pairs, 387 based on Foata normal form. 50/929 useless extension candidates. Maximal degree in co-relation 2372. Up to 793 conditions per place. [2024-10-31 22:10:40,168 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 33 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-10-31 22:10:40,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 275 flow [2024-10-31 22:10:40,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-31 22:10:40,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260162601626016 [2024-10-31 22:10:40,172 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 208 flow. Second operand 3 states and 77 transitions. [2024-10-31 22:10:40,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 275 flow [2024-10-31 22:10:40,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:10:40,179 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 206 flow [2024-10-31 22:10:40,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2024-10-31 22:10:40,180 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-31 22:10:40,181 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 206 flow [2024-10-31 22:10:40,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:10:40,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:40,182 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-31 22:10:40,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:10:40,183 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:40,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash -305903052, now seen corresponding path program 2 times [2024-10-31 22:10:40,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:40,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880904322] [2024-10-31 22:10:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:40,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:40,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:40,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880904322] [2024-10-31 22:10:40,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880904322] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:40,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312758461] [2024-10-31 22:10:40,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:10:40,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:40,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:40,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:40,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:10:40,611 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:10:40,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:10:40,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:10:40,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:10:40,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-31 22:10:40,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312758461] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:40,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:40,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-31 22:10:40,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549659162] [2024-10-31 22:10:40,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:40,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:10:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:40,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:10:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:10:40,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 41 [2024-10-31 22:10:40,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 206 flow. Second operand has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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) [2024-10-31 22:10:40,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:40,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 41 [2024-10-31 22:10:40,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:41,178 INFO L124 PetriNetUnfolderBase]: 544/967 cut-off events. [2024-10-31 22:10:41,178 INFO L125 PetriNetUnfolderBase]: For 404/548 co-relation queries the response was YES. [2024-10-31 22:10:41,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 967 events. 544/967 cut-off events. For 404/548 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4867 event pairs, 387 based on Foata normal form. 51/932 useless extension candidates. Maximal degree in co-relation 2312. Up to 785 conditions per place. [2024-10-31 22:10:41,189 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 20 selfloop transitions, 18 changer transitions 0/53 dead transitions. [2024-10-31 22:10:41,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 53 transitions, 288 flow [2024-10-31 22:10:41,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:10:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:10:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 260 transitions. [2024-10-31 22:10:41,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4529616724738676 [2024-10-31 22:10:41,192 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 206 flow. Second operand 14 states and 260 transitions. [2024-10-31 22:10:41,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 53 transitions, 288 flow [2024-10-31 22:10:41,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 53 transitions, 272 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-31 22:10:41,196 INFO L231 Difference]: Finished difference. Result has 67 places, 53 transitions, 232 flow [2024-10-31 22:10:41,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=232, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2024-10-31 22:10:41,197 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2024-10-31 22:10:41,198 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 232 flow [2024-10-31 22:10:41,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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) [2024-10-31 22:10:41,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:41,198 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:41,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:41,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 22:10:41,403 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:41,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1458165916, now seen corresponding path program 1 times [2024-10-31 22:10:41,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:41,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819633118] [2024-10-31 22:10:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:41,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:10:41,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:41,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819633118] [2024-10-31 22:10:41,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819633118] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:41,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243604445] [2024-10-31 22:10:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:41,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:41,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:41,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:41,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:10:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:41,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:10:41,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:41,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:41,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243604445] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:41,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:41,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-10-31 22:10:41,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035011948] [2024-10-31 22:10:41,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:41,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:10:41,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:10:41,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:10:42,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-10-31 22:10:42,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 232 flow. Second operand has 19 states, 19 states have (on average 14.0) internal successors, (266), 19 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) [2024-10-31 22:10:42,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:42,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-10-31 22:10:42,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:43,299 INFO L124 PetriNetUnfolderBase]: 1524/2565 cut-off events. [2024-10-31 22:10:43,299 INFO L125 PetriNetUnfolderBase]: For 909/1122 co-relation queries the response was YES. [2024-10-31 22:10:43,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6348 conditions, 2565 events. 1524/2565 cut-off events. For 909/1122 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 14805 event pairs, 256 based on Foata normal form. 152/2612 useless extension candidates. Maximal degree in co-relation 3883. Up to 392 conditions per place. [2024-10-31 22:10:43,323 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 116 selfloop transitions, 25 changer transitions 8/159 dead transitions. [2024-10-31 22:10:43,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 159 transitions, 866 flow [2024-10-31 22:10:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:10:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:10:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 292 transitions. [2024-10-31 22:10:43,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5087108013937283 [2024-10-31 22:10:43,327 INFO L175 Difference]: Start difference. First operand has 67 places, 53 transitions, 232 flow. Second operand 14 states and 292 transitions. [2024-10-31 22:10:43,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 159 transitions, 866 flow [2024-10-31 22:10:43,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 159 transitions, 798 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-31 22:10:43,337 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 236 flow [2024-10-31 22:10:43,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=236, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2024-10-31 22:10:43,338 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-31 22:10:43,338 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 236 flow [2024-10-31 22:10:43,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.0) internal successors, (266), 19 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) [2024-10-31 22:10:43,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:43,339 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:43,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:10:43,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-31 22:10:43,542 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:43,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash -778563665, now seen corresponding path program 1 times [2024-10-31 22:10:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:43,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268664380] [2024-10-31 22:10:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:10:43,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268664380] [2024-10-31 22:10:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268664380] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271896315] [2024-10-31 22:10:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:43,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:43,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:43,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:43,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:10:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:43,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:10:43,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:43,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:44,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271896315] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:44,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:44,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-10-31 22:10:44,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478129719] [2024-10-31 22:10:44,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:44,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:10:44,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:44,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:10:44,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:10:44,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-10-31 22:10:44,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 236 flow. Second operand has 19 states, 19 states have (on average 14.210526315789474) internal successors, (270), 19 states have internal predecessors, (270), 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) [2024-10-31 22:10:44,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:44,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-10-31 22:10:44,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:45,172 INFO L124 PetriNetUnfolderBase]: 1550/2572 cut-off events. [2024-10-31 22:10:45,173 INFO L125 PetriNetUnfolderBase]: For 2152/2214 co-relation queries the response was YES. [2024-10-31 22:10:45,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6997 conditions, 2572 events. 1550/2572 cut-off events. For 2152/2214 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 14575 event pairs, 280 based on Foata normal form. 78/2553 useless extension candidates. Maximal degree in co-relation 3955. Up to 454 conditions per place. [2024-10-31 22:10:45,194 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 76 selfloop transitions, 19 changer transitions 49/153 dead transitions. [2024-10-31 22:10:45,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 153 transitions, 905 flow [2024-10-31 22:10:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:10:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-31 22:10:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 285 transitions. [2024-10-31 22:10:45,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4965156794425087 [2024-10-31 22:10:45,197 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 236 flow. Second operand 14 states and 285 transitions. [2024-10-31 22:10:45,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 153 transitions, 905 flow [2024-10-31 22:10:45,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 153 transitions, 812 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-10-31 22:10:45,208 INFO L231 Difference]: Finished difference. Result has 74 places, 50 transitions, 208 flow [2024-10-31 22:10:45,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=208, PETRI_PLACES=74, PETRI_TRANSITIONS=50} [2024-10-31 22:10:45,209 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 32 predicate places. [2024-10-31 22:10:45,210 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 50 transitions, 208 flow [2024-10-31 22:10:45,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.210526315789474) internal successors, (270), 19 states have internal predecessors, (270), 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) [2024-10-31 22:10:45,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:45,212 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:45,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:10:45,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:45,417 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:45,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1035686181, now seen corresponding path program 1 times [2024-10-31 22:10:45,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:45,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976822830] [2024-10-31 22:10:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:45,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:45,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976822830] [2024-10-31 22:10:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976822830] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918817028] [2024-10-31 22:10:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:45,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:45,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:45,524 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:45,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:10:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:45,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:10:45,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:45,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918817028] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:45,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:45,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:10:45,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872817229] [2024-10-31 22:10:45,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:45,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:10:45,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:45,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:10:45,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:10:45,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 22:10:45,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 50 transitions, 208 flow. Second operand has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 12 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) [2024-10-31 22:10:45,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:45,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 22:10:45,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:46,554 INFO L124 PetriNetUnfolderBase]: 1813/3214 cut-off events. [2024-10-31 22:10:46,555 INFO L125 PetriNetUnfolderBase]: For 2691/2778 co-relation queries the response was YES. [2024-10-31 22:10:46,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8654 conditions, 3214 events. 1813/3214 cut-off events. For 2691/2778 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 18813 event pairs, 387 based on Foata normal form. 132/3288 useless extension candidates. Maximal degree in co-relation 7581. Up to 1131 conditions per place. [2024-10-31 22:10:46,583 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 136 selfloop transitions, 13 changer transitions 0/159 dead transitions. [2024-10-31 22:10:46,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 159 transitions, 940 flow [2024-10-31 22:10:46,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:10:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:10:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 271 transitions. [2024-10-31 22:10:46,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6609756097560976 [2024-10-31 22:10:46,587 INFO L175 Difference]: Start difference. First operand has 74 places, 50 transitions, 208 flow. Second operand 10 states and 271 transitions. [2024-10-31 22:10:46,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 159 transitions, 940 flow [2024-10-31 22:10:46,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 159 transitions, 811 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-10-31 22:10:46,594 INFO L231 Difference]: Finished difference. Result has 69 places, 59 transitions, 237 flow [2024-10-31 22:10:46,594 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=69, PETRI_TRANSITIONS=59} [2024-10-31 22:10:46,595 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2024-10-31 22:10:46,595 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 59 transitions, 237 flow [2024-10-31 22:10:46,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.916666666666668) internal successors, (203), 12 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) [2024-10-31 22:10:46,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:46,596 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:46,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:46,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:10:46,797 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:46,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:46,798 INFO L85 PathProgramCache]: Analyzing trace with hash -425650053, now seen corresponding path program 1 times [2024-10-31 22:10:46,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:46,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443337701] [2024-10-31 22:10:46,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:46,922 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:46,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:46,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443337701] [2024-10-31 22:10:46,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443337701] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:46,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300975452] [2024-10-31 22:10:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:46,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:46,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:46,925 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:46,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:10:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:47,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:10:47,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:47,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:10:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300975452] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:47,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:47,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-31 22:10:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226926714] [2024-10-31 22:10:47,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:10:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:10:47,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:10:47,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-10-31 22:10:47,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 59 transitions, 237 flow. Second operand has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-10-31 22:10:47,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:47,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-10-31 22:10:47,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:48,374 INFO L124 PetriNetUnfolderBase]: 3703/6220 cut-off events. [2024-10-31 22:10:48,375 INFO L125 PetriNetUnfolderBase]: For 6976/7303 co-relation queries the response was YES. [2024-10-31 22:10:48,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16575 conditions, 6220 events. 3703/6220 cut-off events. For 6976/7303 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 38293 event pairs, 1035 based on Foata normal form. 246/6345 useless extension candidates. Maximal degree in co-relation 13263. Up to 2157 conditions per place. [2024-10-31 22:10:48,434 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 182 selfloop transitions, 13 changer transitions 0/208 dead transitions. [2024-10-31 22:10:48,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 208 transitions, 1378 flow [2024-10-31 22:10:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:10:48,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:10:48,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 263 transitions. [2024-10-31 22:10:48,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6414634146341464 [2024-10-31 22:10:48,437 INFO L175 Difference]: Start difference. First operand has 69 places, 59 transitions, 237 flow. Second operand 10 states and 263 transitions. [2024-10-31 22:10:48,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 208 transitions, 1378 flow [2024-10-31 22:10:48,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 208 transitions, 1295 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-10-31 22:10:48,449 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 309 flow [2024-10-31 22:10:48,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=309, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-10-31 22:10:48,451 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 37 predicate places. [2024-10-31 22:10:48,451 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 309 flow [2024-10-31 22:10:48,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 17.083333333333332) internal successors, (205), 12 states have internal predecessors, (205), 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) [2024-10-31 22:10:48,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:48,452 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:10:48,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:10:48,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:48,657 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:48,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:48,661 INFO L85 PathProgramCache]: Analyzing trace with hash 474449896, now seen corresponding path program 2 times [2024-10-31 22:10:48,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:48,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269854673] [2024-10-31 22:10:48,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:48,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:48,954 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-31 22:10:48,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:48,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269854673] [2024-10-31 22:10:48,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269854673] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:48,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067718514] [2024-10-31 22:10:48,956 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:10:48,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:48,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:48,959 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:48,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:10:49,045 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:10:49,046 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:10:49,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:49,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:10:49,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:49,244 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:10:49,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067718514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:49,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:49,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-10-31 22:10:49,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728020734] [2024-10-31 22:10:49,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:49,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:10:49,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:10:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:10:49,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-10-31 22:10:49,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 309 flow. Second operand has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-10-31 22:10:49,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:49,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-10-31 22:10:49,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:52,003 INFO L124 PetriNetUnfolderBase]: 8620/13681 cut-off events. [2024-10-31 22:10:52,003 INFO L125 PetriNetUnfolderBase]: For 18300/18756 co-relation queries the response was YES. [2024-10-31 22:10:52,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39731 conditions, 13681 events. 8620/13681 cut-off events. For 18300/18756 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 90153 event pairs, 1054 based on Foata normal form. 160/13668 useless extension candidates. Maximal degree in co-relation 31527. Up to 2816 conditions per place. [2024-10-31 22:10:52,124 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 140 selfloop transitions, 38 changer transitions 45/235 dead transitions. [2024-10-31 22:10:52,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 235 transitions, 1587 flow [2024-10-31 22:10:52,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:10:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-31 22:10:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 320 transitions. [2024-10-31 22:10:52,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-10-31 22:10:52,192 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 309 flow. Second operand 16 states and 320 transitions. [2024-10-31 22:10:52,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 235 transitions, 1587 flow [2024-10-31 22:10:52,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 235 transitions, 1484 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-10-31 22:10:52,279 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 447 flow [2024-10-31 22:10:52,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=447, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-10-31 22:10:52,280 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 47 predicate places. [2024-10-31 22:10:52,280 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 447 flow [2024-10-31 22:10:52,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.307692307692308) internal successors, (186), 13 states have internal predecessors, (186), 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) [2024-10-31 22:10:52,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:52,280 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:52,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:52,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:52,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-10-31 22:10:52,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:52,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1954596347, now seen corresponding path program 2 times [2024-10-31 22:10:52,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:52,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583904352] [2024-10-31 22:10:52,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:52,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-31 22:10:52,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583904352] [2024-10-31 22:10:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583904352] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:10:52,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674021331] [2024-10-31 22:10:52,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:10:52,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:52,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:52,789 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:10:52,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:10:52,886 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:10:52,886 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:10:52,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:10:52,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:10:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:10:52,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:10:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:10:53,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674021331] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:10:53,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:10:53,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-10-31 22:10:53,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327598045] [2024-10-31 22:10:53,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:10:53,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:10:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:10:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:10:53,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-10-31 22:10:53,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 447 flow. Second operand has 13 states, 13 states have (on average 14.615384615384615) internal successors, (190), 13 states have internal predecessors, (190), 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) [2024-10-31 22:10:53,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:53,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-10-31 22:10:53,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:55,508 INFO L124 PetriNetUnfolderBase]: 7629/12097 cut-off events. [2024-10-31 22:10:55,508 INFO L125 PetriNetUnfolderBase]: For 27107/27854 co-relation queries the response was YES. [2024-10-31 22:10:55,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36410 conditions, 12097 events. 7629/12097 cut-off events. For 27107/27854 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 79478 event pairs, 946 based on Foata normal form. 539/12541 useless extension candidates. Maximal degree in co-relation 26773. Up to 2882 conditions per place. [2024-10-31 22:10:55,570 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 0 selfloop transitions, 0 changer transitions 224/224 dead transitions. [2024-10-31 22:10:55,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 224 transitions, 1672 flow [2024-10-31 22:10:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-31 22:10:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-31 22:10:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 308 transitions. [2024-10-31 22:10:55,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4695121951219512 [2024-10-31 22:10:55,574 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 447 flow. Second operand 16 states and 308 transitions. [2024-10-31 22:10:55,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 224 transitions, 1672 flow [2024-10-31 22:10:55,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 224 transitions, 1640 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-10-31 22:10:55,638 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2024-10-31 22:10:55,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2024-10-31 22:10:55,640 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 49 predicate places. [2024-10-31 22:10:55,640 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2024-10-31 22:10:55,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.615384615384615) internal successors, (190), 13 states have internal predecessors, (190), 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) [2024-10-31 22:10:55,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-10-31 22:10:55,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-10-31 22:10:55,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-10-31 22:10:55,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-10-31 22:10:55,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-10-31 22:10:55,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-10-31 22:10:55,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-10-31 22:10:55,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-10-31 22:10:55,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-10-31 22:10:55,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-10-31 22:10:55,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-10-31 22:10:55,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-10-31 22:10:55,646 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-10-31 22:10:55,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:10:55,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:10:55,850 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:55,861 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-31 22:10:55,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:10:55,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:10:55 BasicIcfg [2024-10-31 22:10:55,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:10:55,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:10:55,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:10:55,875 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:10:55,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:35" (3/4) ... [2024-10-31 22:10:55,881 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-10-31 22:10:55,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-31 22:10:55,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-31 22:10:55,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-31 22:10:55,904 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 92 nodes and edges [2024-10-31 22:10:55,905 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-10-31 22:10:55,905 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-31 22:10:55,905 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-31 22:10:56,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:10:56,055 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/witness.yml [2024-10-31 22:10:56,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:10:56,056 INFO L158 Benchmark]: Toolchain (without parser) took 21348.41ms. Allocated memory was 161.5MB in the beginning and 868.2MB in the end (delta: 706.7MB). Free memory was 129.8MB in the beginning and 486.9MB in the end (delta: -357.1MB). Peak memory consumption was 352.3MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,058 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 113.2MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:10:56,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.51ms. Allocated memory is still 161.5MB. Free memory was 129.8MB in the beginning and 116.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.08ms. Allocated memory is still 161.5MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,061 INFO L158 Benchmark]: Boogie Preprocessor took 66.83ms. Allocated memory is still 161.5MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,062 INFO L158 Benchmark]: RCFGBuilder took 752.88ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 75.4MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,062 INFO L158 Benchmark]: TraceAbstraction took 19873.36ms. Allocated memory was 161.5MB in the beginning and 868.2MB in the end (delta: 706.7MB). Free memory was 74.8MB in the beginning and 492.2MB in the end (delta: -417.4MB). Peak memory consumption was 293.6MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,063 INFO L158 Benchmark]: Witness Printer took 180.62ms. Allocated memory is still 868.2MB. Free memory was 492.2MB in the beginning and 486.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-31 22:10:56,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26ms. Allocated memory is still 113.2MB. Free memory is still 60.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.51ms. Allocated memory is still 161.5MB. Free memory was 129.8MB in the beginning and 116.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.08ms. Allocated memory is still 161.5MB. Free memory was 116.8MB in the beginning and 114.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.83ms. Allocated memory is still 161.5MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 752.88ms. Allocated memory is still 161.5MB. Free memory was 112.6MB in the beginning and 75.4MB in the end (delta: 37.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19873.36ms. Allocated memory was 161.5MB in the beginning and 868.2MB in the end (delta: 706.7MB). Free memory was 74.8MB in the beginning and 492.2MB in the end (delta: -417.4MB). Peak memory consumption was 293.6MB. Max. memory is 16.1GB. * Witness Printer took 180.62ms. Allocated memory is still 868.2MB. Free memory was 492.2MB in the beginning and 486.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.7s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1189 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1116 mSDsluCounter, 899 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 877 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4598 IncrementalHoareTripleChecker+Invalid, 4644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 22 mSDtfsCounter, 4598 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 457 GetRequests, 277 SyntacticMatches, 7 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred in iteration=12, InterpolantAutomatonStates: 125, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 388 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 1581 SizeOfPredicates, 29 NumberOfNonLiveVariables, 895 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 322/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-31 22:10:56,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4e4fae1-ca95-4a92-b934-f6d95c713d54/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE