./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu --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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:32,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:32,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:03:32,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:32,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:32,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:32,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:32,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:32,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:32,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:32,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:32,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:32,713 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:32,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:32,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:32,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:32,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:32,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:32,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:32,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:32,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:32,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:32,719 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:03:32,721 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:32,722 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:32,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:32,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:32,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:32,724 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:32,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:32,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:32,726 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:32,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:32,726 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:32,727 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:32,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:32,727 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:32,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:32,727 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:32,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:32,728 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:32,728 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_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2023-11-19 08:03:33,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:33,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:33,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:33,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:33,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:33,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-19 08:03:36,057 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:36,378 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:36,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2023-11-19 08:03:36,401 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/data/aa4fbd0e8/8207f9f0a114458eb0181ae7ceb4fb44/FLAGe49630f03 [2023-11-19 08:03:36,415 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/data/aa4fbd0e8/8207f9f0a114458eb0181ae7ceb4fb44 [2023-11-19 08:03:36,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:36,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:36,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:36,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:36,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:36,428 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a1f2e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36, skipping insertion in model container [2023-11-19 08:03:36,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:36,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:36,823 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:36,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:36,947 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:36,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36 WrapperNode [2023-11-19 08:03:36,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:36,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:36,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:36,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:36,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:36,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,025 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-11-19 08:03:37,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:37,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:37,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:37,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:37,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:37,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:37,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:37,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:37,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (1/1) ... [2023-11-19 08:03:37,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:37,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:37,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:37,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:03:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 08:03:37,182 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 08:03:37,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:37,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:37,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:37,184 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:37,312 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:37,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:37,546 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:37,555 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:37,556 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:03:37,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:37 BoogieIcfgContainer [2023-11-19 08:03:37,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:37,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:37,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:37,569 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:37,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:36" (1/3) ... [2023-11-19 08:03:37,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1e91d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:37, skipping insertion in model container [2023-11-19 08:03:37,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:36" (2/3) ... [2023-11-19 08:03:37,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1e91d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:37, skipping insertion in model container [2023-11-19 08:03:37,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:37" (3/3) ... [2023-11-19 08:03:37,575 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-11-19 08:03:37,585 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:37,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:37,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:03:37,599 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:37,685 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:03:37,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 120 flow [2023-11-19 08:03:37,792 INFO L124 PetriNetUnfolderBase]: 2/57 cut-off events. [2023-11-19 08:03:37,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:37,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-11-19 08:03:37,799 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 120 flow [2023-11-19 08:03:37,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 57 transitions, 117 flow [2023-11-19 08:03:37,810 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:37,832 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 57 transitions, 117 flow [2023-11-19 08:03:37,839 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 57 transitions, 117 flow [2023-11-19 08:03:37,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 117 flow [2023-11-19 08:03:37,880 INFO L124 PetriNetUnfolderBase]: 2/57 cut-off events. [2023-11-19 08:03:37,885 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:37,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-11-19 08:03:37,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 468 [2023-11-19 08:03:39,483 INFO L134 LiptonReduction]: Checked pairs total: 878 [2023-11-19 08:03:39,483 INFO L136 LiptonReduction]: Total number of compositions: 51 [2023-11-19 08:03:39,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:39,522 INFO L357 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, mHoare=true, 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;@1070b74a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:39,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-19 08:03:39,524 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:39,524 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-19 08:03:39,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:39,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:39,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 08:03:39,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:39,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash 7036, now seen corresponding path program 1 times [2023-11-19 08:03:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:39,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330761212] [2023-11-19 08:03:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:39,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:39,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:39,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330761212] [2023-11-19 08:03:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330761212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:39,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:39,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:03:39,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797117942] [2023-11-19 08:03:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:39,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:39,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:39,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:39,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:39,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 109 [2023-11-19 08:03:39,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-19 08:03:39,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:39,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 109 [2023-11-19 08:03:39,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:40,007 INFO L124 PetriNetUnfolderBase]: 37/90 cut-off events. [2023-11-19 08:03:40,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:40,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 278 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-11-19 08:03:40,010 INFO L140 encePairwiseOnDemand]: 104/109 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-11-19 08:03:40,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-11-19 08:03:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2023-11-19 08:03:40,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5259938837920489 [2023-11-19 08:03:40,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2023-11-19 08:03:40,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2023-11-19 08:03:40,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:40,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2023-11-19 08:03:40,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-11-19 08:03:40,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:40,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:40,043 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 172 transitions. [2023-11-19 08:03:40,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-11-19 08:03:40,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:40,049 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-11-19 08:03:40,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-11-19 08:03:40,056 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-11-19 08:03:40,056 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-11-19 08:03:40,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-19 08:03:40,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:40,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 08:03:40,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:40,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:40,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:40,059 INFO L85 PathProgramCache]: Analyzing trace with hash 218363, now seen corresponding path program 1 times [2023-11-19 08:03:40,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:40,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973668740] [2023-11-19 08:03:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:40,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:40,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973668740] [2023-11-19 08:03:40,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973668740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138513007] [2023-11-19 08:03:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:40,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:40,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:40,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:03:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:40,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:03:40,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:40,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138513007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:03:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-19 08:03:40,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194461601] [2023-11-19 08:03:40,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:40,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:03:40,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:40,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:03:40,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:40,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 109 [2023-11-19 08:03:40,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:40,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:40,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 109 [2023-11-19 08:03:40,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:40,422 INFO L124 PetriNetUnfolderBase]: 37/89 cut-off events. [2023-11-19 08:03:40,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:40,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 277 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 87 conditions per place. [2023-11-19 08:03:40,425 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 14 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2023-11-19 08:03:40,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 80 flow [2023-11-19 08:03:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:03:40,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:03:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 218 transitions. [2023-11-19 08:03:40,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 08:03:40,437 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 218 transitions. [2023-11-19 08:03:40,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 218 transitions. [2023-11-19 08:03:40,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:40,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 218 transitions. [2023-11-19 08:03:40,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 54.5) internal successors, (218), 4 states have internal predecessors, (218), 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) [2023-11-19 08:03:40,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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) [2023-11-19 08:03:40,448 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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) [2023-11-19 08:03:40,448 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 4 states and 218 transitions. [2023-11-19 08:03:40,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 80 flow [2023-11-19 08:03:40,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:40,454 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 48 flow [2023-11-19 08:03:40,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-11-19 08:03:40,456 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-11-19 08:03:40,457 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 48 flow [2023-11-19 08:03:40,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:40,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:40,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:03:40,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:40,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:40,680 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:40,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2084424038, now seen corresponding path program 1 times [2023-11-19 08:03:40,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:40,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090873899] [2023-11-19 08:03:40,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:40,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:40,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090873899] [2023-11-19 08:03:40,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090873899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:40,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216804073] [2023-11-19 08:03:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:40,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:40,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:40,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:03:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:40,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 08:03:40,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:40,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:03:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:40,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216804073] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:03:40,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:03:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 08:03:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611579135] [2023-11-19 08:03:40,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:03:40,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 08:03:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 08:03:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:03:40,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 109 [2023-11-19 08:03:40,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 48 flow. Second operand has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 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) [2023-11-19 08:03:40,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:40,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 109 [2023-11-19 08:03:40,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:41,033 INFO L124 PetriNetUnfolderBase]: 37/92 cut-off events. [2023-11-19 08:03:41,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:41,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 277 event pairs, 36 based on Foata normal form. 3/67 useless extension candidates. Maximal degree in co-relation 172. Up to 89 conditions per place. [2023-11-19 08:03:41,039 INFO L140 encePairwiseOnDemand]: 106/109 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-11-19 08:03:41,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 100 flow [2023-11-19 08:03:41,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:03:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:03:41,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 317 transitions. [2023-11-19 08:03:41,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4847094801223242 [2023-11-19 08:03:41,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 317 transitions. [2023-11-19 08:03:41,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 317 transitions. [2023-11-19 08:03:41,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:41,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 317 transitions. [2023-11-19 08:03:41,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.833333333333336) internal successors, (317), 6 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:41,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2023-11-19 08:03:41,048 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2023-11-19 08:03:41,048 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 48 flow. Second operand 6 states and 317 transitions. [2023-11-19 08:03:41,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 100 flow [2023-11-19 08:03:41,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:41,050 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 80 flow [2023-11-19 08:03:41,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=80, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-11-19 08:03:41,051 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-11-19 08:03:41,052 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 80 flow [2023-11-19 08:03:41,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 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) [2023-11-19 08:03:41,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:41,053 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-11-19 08:03:41,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:03:41,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:41,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:41,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:41,274 INFO L85 PathProgramCache]: Analyzing trace with hash -830843719, now seen corresponding path program 2 times [2023-11-19 08:03:41,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:41,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763377073] [2023-11-19 08:03:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:41,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:41,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:03:41,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:41,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763377073] [2023-11-19 08:03:41,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763377073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:41,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:41,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:03:41,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867555098] [2023-11-19 08:03:41,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:41,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:41,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:41,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:41,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:41,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 109 [2023-11-19 08:03:41,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-19 08:03:41,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:41,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 109 [2023-11-19 08:03:41,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:41,461 INFO L124 PetriNetUnfolderBase]: 21/60 cut-off events. [2023-11-19 08:03:41,461 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 08:03:41,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 141 event pairs, 10 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 114. Up to 41 conditions per place. [2023-11-19 08:03:41,462 INFO L140 encePairwiseOnDemand]: 102/109 looper letters, 19 selfloop transitions, 3 changer transitions 4/26 dead transitions. [2023-11-19 08:03:41,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 144 flow [2023-11-19 08:03:41,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:41,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2023-11-19 08:03:41,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5657492354740061 [2023-11-19 08:03:41,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 185 transitions. [2023-11-19 08:03:41,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 185 transitions. [2023-11-19 08:03:41,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:41,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 185 transitions. [2023-11-19 08:03:41,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2023-11-19 08:03:41,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:41,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:41,468 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 80 flow. Second operand 3 states and 185 transitions. [2023-11-19 08:03:41,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 144 flow [2023-11-19 08:03:41,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 130 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:41,475 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 83 flow [2023-11-19 08:03:41,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-11-19 08:03:41,477 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 10 predicate places. [2023-11-19 08:03:41,477 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 83 flow [2023-11-19 08:03:41,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-19 08:03:41,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:41,478 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:41,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:41,481 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:41,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:41,482 INFO L85 PathProgramCache]: Analyzing trace with hash 231015601, now seen corresponding path program 1 times [2023-11-19 08:03:41,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:41,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217327920] [2023-11-19 08:03:41,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:41,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 08:03:41,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217327920] [2023-11-19 08:03:41,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217327920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:41,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:41,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:41,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957845538] [2023-11-19 08:03:41,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:41,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:41,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:41,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:41,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:41,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 109 [2023-11-19 08:03:41,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-11-19 08:03:41,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:41,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 109 [2023-11-19 08:03:41,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:41,699 INFO L124 PetriNetUnfolderBase]: 1/24 cut-off events. [2023-11-19 08:03:41,699 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-19 08:03:41,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 24 events. 1/24 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 35. Up to 14 conditions per place. [2023-11-19 08:03:41,701 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 16 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-11-19 08:03:41,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 123 flow [2023-11-19 08:03:41,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2023-11-19 08:03:41,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137614678899083 [2023-11-19 08:03:41,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2023-11-19 08:03:41,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2023-11-19 08:03:41,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:41,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2023-11-19 08:03:41,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2023-11-19 08:03:41,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:41,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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) [2023-11-19 08:03:41,707 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 83 flow. Second operand 3 states and 168 transitions. [2023-11-19 08:03:41,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 123 flow [2023-11-19 08:03:41,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:41,711 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 88 flow [2023-11-19 08:03:41,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-11-19 08:03:41,713 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-11-19 08:03:41,713 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 88 flow [2023-11-19 08:03:41,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2023-11-19 08:03:41,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:41,714 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:41,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:03:41,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:41,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:41,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1405778753, now seen corresponding path program 1 times [2023-11-19 08:03:41,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:41,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550831399] [2023-11-19 08:03:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:41,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550831399] [2023-11-19 08:03:41,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550831399] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:03:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566053215] [2023-11-19 08:03:41,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:41,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:41,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:03:41,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:03:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:41,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:03:41,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:41,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:03:42,048 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:42,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566053215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:03:42,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:03:42,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 08:03:42,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938968882] [2023-11-19 08:03:42,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:03:42,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 08:03:42,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:42,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 08:03:42,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 08:03:42,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 109 [2023-11-19 08:03:42,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 88 flow. Second operand has 13 states, 13 states have (on average 50.61538461538461) internal successors, (658), 13 states have internal predecessors, (658), 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) [2023-11-19 08:03:42,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:42,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 109 [2023-11-19 08:03:42,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:42,187 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2023-11-19 08:03:42,187 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-11-19 08:03:42,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 30 events. 1/30 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 61. Up to 21 conditions per place. [2023-11-19 08:03:42,188 INFO L140 encePairwiseOnDemand]: 106/109 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-11-19 08:03:42,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 176 flow [2023-11-19 08:03:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:03:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:03:42,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 620 transitions. [2023-11-19 08:03:42,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740061162079511 [2023-11-19 08:03:42,193 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 620 transitions. [2023-11-19 08:03:42,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 620 transitions. [2023-11-19 08:03:42,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:42,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 620 transitions. [2023-11-19 08:03:42,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 51.666666666666664) internal successors, (620), 12 states have internal predecessors, (620), 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) [2023-11-19 08:03:42,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 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) [2023-11-19 08:03:42,199 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 109.0) internal successors, (1417), 13 states have internal predecessors, (1417), 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) [2023-11-19 08:03:42,199 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 88 flow. Second operand 12 states and 620 transitions. [2023-11-19 08:03:42,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 176 flow [2023-11-19 08:03:42,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:42,204 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 168 flow [2023-11-19 08:03:42,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=168, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2023-11-19 08:03:42,207 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-11-19 08:03:42,208 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 168 flow [2023-11-19 08:03:42,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.61538461538461) internal successors, (658), 13 states have internal predecessors, (658), 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) [2023-11-19 08:03:42,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:42,208 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:42,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 08:03:42,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:03:42,428 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:42,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:42,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1935694111, now seen corresponding path program 2 times [2023-11-19 08:03:42,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:42,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983658129] [2023-11-19 08:03:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:42,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:42,582 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 08:03:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:42,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983658129] [2023-11-19 08:03:42,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983658129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:42,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:42,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:42,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427310217] [2023-11-19 08:03:42,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:42,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:42,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:42,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:42,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:42,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 109 [2023-11-19 08:03:42,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2023-11-19 08:03:42,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:42,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 109 [2023-11-19 08:03:42,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:42,675 INFO L124 PetriNetUnfolderBase]: 1/29 cut-off events. [2023-11-19 08:03:42,676 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-19 08:03:42,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 29 events. 1/29 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 82. Up to 17 conditions per place. [2023-11-19 08:03:42,677 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 22 selfloop transitions, 5 changer transitions 2/29 dead transitions. [2023-11-19 08:03:42,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 29 transitions, 232 flow [2023-11-19 08:03:42,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:42,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:03:42,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 255 transitions. [2023-11-19 08:03:42,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46788990825688076 [2023-11-19 08:03:42,680 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 255 transitions. [2023-11-19 08:03:42,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 255 transitions. [2023-11-19 08:03:42,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:42,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 255 transitions. [2023-11-19 08:03:42,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2023-11-19 08:03:42,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:42,683 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:42,683 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 168 flow. Second operand 5 states and 255 transitions. [2023-11-19 08:03:42,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 29 transitions, 232 flow [2023-11-19 08:03:42,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 184 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-11-19 08:03:42,691 INFO L231 Difference]: Finished difference. Result has 46 places, 25 transitions, 126 flow [2023-11-19 08:03:42,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=46, PETRI_TRANSITIONS=25} [2023-11-19 08:03:42,692 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 25 predicate places. [2023-11-19 08:03:42,692 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 25 transitions, 126 flow [2023-11-19 08:03:42,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2023-11-19 08:03:42,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:42,692 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:42,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:03:42,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:42,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1935694118, now seen corresponding path program 1 times [2023-11-19 08:03:42,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:42,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111268565] [2023-11-19 08:03:42,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:42,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:42,828 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 08:03:42,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:42,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111268565] [2023-11-19 08:03:42,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111268565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:42,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:42,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:42,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109706860] [2023-11-19 08:03:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:42,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:42,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:42,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:42,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 109 [2023-11-19 08:03:42,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 25 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2023-11-19 08:03:42,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:42,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 109 [2023-11-19 08:03:42,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:42,909 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2023-11-19 08:03:42,910 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-19 08:03:42,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 27 events. 1/27 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 60. Up to 17 conditions per place. [2023-11-19 08:03:42,910 INFO L140 encePairwiseOnDemand]: 103/109 looper letters, 18 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2023-11-19 08:03:42,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 27 transitions, 184 flow [2023-11-19 08:03:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:03:42,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2023-11-19 08:03:42,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46422018348623856 [2023-11-19 08:03:42,913 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 253 transitions. [2023-11-19 08:03:42,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 253 transitions. [2023-11-19 08:03:42,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:42,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 253 transitions. [2023-11-19 08:03:42,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 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) [2023-11-19 08:03:42,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:42,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:42,938 INFO L175 Difference]: Start difference. First operand has 46 places, 25 transitions, 126 flow. Second operand 5 states and 253 transitions. [2023-11-19 08:03:42,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 27 transitions, 184 flow [2023-11-19 08:03:42,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 27 transitions, 179 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:42,941 INFO L231 Difference]: Finished difference. Result has 47 places, 21 transitions, 113 flow [2023-11-19 08:03:42,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=47, PETRI_TRANSITIONS=21} [2023-11-19 08:03:42,942 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 26 predicate places. [2023-11-19 08:03:42,942 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 21 transitions, 113 flow [2023-11-19 08:03:42,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 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) [2023-11-19 08:03:42,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:42,942 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:42,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:03:42,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:42,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:42,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1000186617, now seen corresponding path program 1 times [2023-11-19 08:03:42,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:42,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205972675] [2023-11-19 08:03:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:42,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 08:03:43,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:43,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205972675] [2023-11-19 08:03:43,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205972675] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:43,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:43,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:43,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35162345] [2023-11-19 08:03:43,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:43,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:43,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:43,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:43,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:43,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 109 [2023-11-19 08:03:43,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 21 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2023-11-19 08:03:43,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:43,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 109 [2023-11-19 08:03:43,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:43,138 INFO L124 PetriNetUnfolderBase]: 1/21 cut-off events. [2023-11-19 08:03:43,139 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-19 08:03:43,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 21 events. 1/21 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 57. Up to 16 conditions per place. [2023-11-19 08:03:43,139 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 17 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2023-11-19 08:03:43,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 21 transitions, 152 flow [2023-11-19 08:03:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:43,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:03:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 257 transitions. [2023-11-19 08:03:43,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47155963302752296 [2023-11-19 08:03:43,142 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 257 transitions. [2023-11-19 08:03:43,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 257 transitions. [2023-11-19 08:03:43,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:43,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 257 transitions. [2023-11-19 08:03:43,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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) [2023-11-19 08:03:43,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:43,147 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:43,147 INFO L175 Difference]: Start difference. First operand has 47 places, 21 transitions, 113 flow. Second operand 5 states and 257 transitions. [2023-11-19 08:03:43,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 21 transitions, 152 flow [2023-11-19 08:03:43,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 21 transitions, 142 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:43,150 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 103 flow [2023-11-19 08:03:43,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-11-19 08:03:43,151 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-11-19 08:03:43,151 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 103 flow [2023-11-19 08:03:43,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2023-11-19 08:03:43,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:43,152 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:43,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:03:43,153 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:03:43,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:43,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1000186608, now seen corresponding path program 1 times [2023-11-19 08:03:43,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:43,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062363035] [2023-11-19 08:03:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-19 08:03:43,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062363035] [2023-11-19 08:03:43,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062363035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:43,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:43,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:43,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604782440] [2023-11-19 08:03:43,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:43,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:03:43,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:03:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:03:43,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 109 [2023-11-19 08:03:43,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2023-11-19 08:03:43,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:43,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 109 [2023-11-19 08:03:43,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:43,350 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2023-11-19 08:03:43,350 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-11-19 08:03:43,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 20 events. 1/20 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 55. Up to 16 conditions per place. [2023-11-19 08:03:43,351 INFO L140 encePairwiseOnDemand]: 105/109 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-11-19 08:03:43,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 142 flow [2023-11-19 08:03:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:03:43,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:03:43,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 256 transitions. [2023-11-19 08:03:43,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46972477064220186 [2023-11-19 08:03:43,353 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 256 transitions. [2023-11-19 08:03:43,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 256 transitions. [2023-11-19 08:03:43,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:43,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 256 transitions. [2023-11-19 08:03:43,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.2) internal successors, (256), 5 states have internal predecessors, (256), 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) [2023-11-19 08:03:43,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:43,358 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2023-11-19 08:03:43,358 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 103 flow. Second operand 5 states and 256 transitions. [2023-11-19 08:03:43,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 142 flow [2023-11-19 08:03:43,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 20 transitions, 135 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:03:43,361 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-11-19 08:03:43,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-11-19 08:03:43,362 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 18 predicate places. [2023-11-19 08:03:43,362 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-11-19 08:03:43,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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) [2023-11-19 08:03:43,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-11-19 08:03:43,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-11-19 08:03:43,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-11-19 08:03:43,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-11-19 08:03:43,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-19 08:03:43,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-11-19 08:03:43,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-11-19 08:03:43,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-11-19 08:03:43,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-11-19 08:03:43,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:03:43,369 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:43,376 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:03:43,376 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:03:43,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:43 BasicIcfg [2023-11-19 08:03:43,382 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:03:43,383 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:43,383 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:43,383 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:43,384 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:37" (3/4) ... [2023-11-19 08:03:43,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:03:43,391 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-19 08:03:43,397 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 08:03:43,397 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:03:43,398 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:03:43,491 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:03:43,496 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:03:43,496 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:43,497 INFO L158 Benchmark]: Toolchain (without parser) took 7076.86ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 120.8MB in the beginning and 91.6MB in the end (delta: 29.2MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,497 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 153.1MB. Free memory was 121.6MB in the beginning and 121.5MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:43,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.77ms. Allocated memory is still 153.1MB. Free memory was 120.8MB in the beginning and 101.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.70ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,498 INFO L158 Benchmark]: Boogie Preprocessor took 66.34ms. Allocated memory is still 153.1MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,498 INFO L158 Benchmark]: RCFGBuilder took 467.44ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 85.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,499 INFO L158 Benchmark]: TraceAbstraction took 5818.30ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 84.6MB in the beginning and 95.8MB in the end (delta: -11.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,499 INFO L158 Benchmark]: Witness Printer took 113.32ms. Allocated memory is still 184.5MB. Free memory was 95.8MB in the beginning and 91.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:03:43,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 153.1MB. Free memory was 121.6MB in the beginning and 121.5MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.77ms. Allocated memory is still 153.1MB. Free memory was 120.8MB in the beginning and 101.4MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.70ms. Allocated memory is still 153.1MB. Free memory was 101.4MB in the beginning and 99.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.34ms. Allocated memory is still 153.1MB. Free memory was 99.8MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 467.44ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 85.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5818.30ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 84.6MB in the beginning and 95.8MB in the end (delta: -11.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 113.32ms. Allocated memory is still 184.5MB. Free memory was 95.8MB in the beginning and 91.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 59 PlacesBefore, 21 PlacesAfterwards, 57 TransitionsBefore, 18 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 4 FixpointIterations, 21 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 51 TotalNumberOfCompositions, 878 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 623, independent: 553, independent conditional: 0, independent unconditional: 553, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 304, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 623, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 304, unknown conditional: 0, unknown unconditional: 304] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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 3 procedures, 72 locations, 9 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: 5.6s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 626 IncrementalHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 16 mSDtfsCounter, 626 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=6, InterpolantAutomatonStates: 51, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 367 SizeOfPredicates, 0 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 241/275 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! [2023-11-19 08:03:43,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ca52dbd-10fb-48a3-976e-cfe5f6811404/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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