./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:28,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:28,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:42:28,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:28,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:28,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:28,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:28,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:28,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:42:28,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:42:28,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:28,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:28,764 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:28,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:28,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:42:28,768 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:42:28,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:42:28,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:42:28,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:28,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:42:28,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:42:28,771 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:42:28,772 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:42:28,772 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:42:28,772 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:42:28,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:28,773 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:28,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:28,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:28,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:42:28,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:28,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:28,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:42:28,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:42:28,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:42:28,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:42:28,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:42:28,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:42:28,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:42:28,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:42:28,780 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:42:28,781 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_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79419a4ba87d66b20bd1eac3a57771b6df78d8c052d6832c2c2f61b321d58321 [2023-11-06 22:42:29,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:29,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:29,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:29,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:29,213 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:29,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2023-11-06 22:42:33,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:33,268 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:33,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/sv-benchmarks/c/weaver/chl-exp-term-symm.wvr.c [2023-11-06 22:42:33,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/data/ece8b9aba/90aa9620bddf4970bd4e1edecd717d05/FLAGa5c4898b9 [2023-11-06 22:42:33,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/data/ece8b9aba/90aa9620bddf4970bd4e1edecd717d05 [2023-11-06 22:42:33,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:33,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:33,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:33,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:33,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:33,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa0201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33, skipping insertion in model container [2023-11-06 22:42:33,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:33,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:33,590 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:33,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:33,647 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:33,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33 WrapperNode [2023-11-06 22:42:33,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:33,650 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:33,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:33,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:33,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,716 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 161 [2023-11-06 22:42:33,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:33,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:33,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:33,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:33,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:33,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:33,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:33,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:33,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (1/1) ... [2023-11-06 22:42:33,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:33,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:33,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:33,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:42:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:42:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:42:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:42:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:42:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:42:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:42:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:42:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:33,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:42:33,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:42:33,866 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:42:34,071 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:34,076 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:34,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:34,613 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:34,613 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:42:34,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:34 BoogieIcfgContainer [2023-11-06 22:42:34,617 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:34,621 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:42:34,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:42:34,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:42:34,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:42:33" (1/3) ... [2023-11-06 22:42:34,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dc2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:34, skipping insertion in model container [2023-11-06 22:42:34,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:33" (2/3) ... [2023-11-06 22:42:34,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dc2abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:34, skipping insertion in model container [2023-11-06 22:42:34,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:34" (3/3) ... [2023-11-06 22:42:34,629 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2023-11-06 22:42:34,641 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:42:34,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:42:34,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-06 22:42:34,655 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:42:34,804 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:42:34,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 220 transitions, 454 flow [2023-11-06 22:42:34,987 INFO L124 PetriNetUnfolderBase]: 17/218 cut-off events. [2023-11-06 22:42:34,990 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:42:35,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 218 events. 17/218 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 474 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2023-11-06 22:42:35,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 220 transitions, 454 flow [2023-11-06 22:42:35,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 180 transitions, 369 flow [2023-11-06 22:42:35,024 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:42:35,046 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 180 transitions, 369 flow [2023-11-06 22:42:35,049 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 180 transitions, 369 flow [2023-11-06 22:42:35,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 180 transitions, 369 flow [2023-11-06 22:42:35,193 INFO L124 PetriNetUnfolderBase]: 14/180 cut-off events. [2023-11-06 22:42:35,194 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:42:35,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 180 events. 14/180 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 405 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2023-11-06 22:42:35,208 INFO L119 LiptonReduction]: Number of co-enabled transitions 10988 [2023-11-06 22:42:49,667 INFO L134 LiptonReduction]: Checked pairs total: 10193 [2023-11-06 22:42:49,668 INFO L136 LiptonReduction]: Total number of compositions: 241 [2023-11-06 22:42:49,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:49,737 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=LoopsAndPotentialCycles, 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;@235f585f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:49,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-06 22:42:49,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:42:49,749 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-06 22:42:49,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:49,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:49,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:42:49,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:42:49,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:49,765 INFO L85 PathProgramCache]: Analyzing trace with hash 893408, now seen corresponding path program 1 times [2023-11-06 22:42:49,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:49,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493554911] [2023-11-06 22:42:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493554911] [2023-11-06 22:42:50,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493554911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:50,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:50,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304084270] [2023-11-06 22:42:50,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:50,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:50,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 461 [2023-11-06 22:42:50,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 51 flow. Second operand has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2023-11-06 22:42:50,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:50,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 461 [2023-11-06 22:42:50,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:50,318 INFO L124 PetriNetUnfolderBase]: 105/202 cut-off events. [2023-11-06 22:42:50,326 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-06 22:42:50,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 202 events. 105/202 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 798 event pairs, 105 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 368. Up to 203 conditions per place. [2023-11-06 22:42:50,330 INFO L140 encePairwiseOnDemand]: 457/461 looper letters, 17 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2023-11-06 22:42:50,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 17 transitions, 77 flow [2023-11-06 22:42:50,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:42:50,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2023-11-06 22:42:50,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47396963123644253 [2023-11-06 22:42:50,369 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 437 transitions. [2023-11-06 22:42:50,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 437 transitions. [2023-11-06 22:42:50,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:50,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 437 transitions. [2023-11-06 22:42:50,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 218.5) internal successors, (437), 2 states have internal predecessors, (437), 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) [2023-11-06 22:42:50,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-06 22:42:50,402 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 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) [2023-11-06 22:42:50,405 INFO L175 Difference]: Start difference. First operand has 28 places, 21 transitions, 51 flow. Second operand 2 states and 437 transitions. [2023-11-06 22:42:50,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 17 transitions, 77 flow [2023-11-06 22:42:50,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 72 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:42:50,414 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 38 flow [2023-11-06 22:42:50,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=38, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-11-06 22:42:50,423 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-11-06 22:42:50,424 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 38 flow [2023-11-06 22:42:50,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2023-11-06 22:42:50,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:50,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:42:50,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:42:50,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:42:50,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash 893431, now seen corresponding path program 1 times [2023-11-06 22:42:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:50,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566273425] [2023-11-06 22:42:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:50,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:50,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566273425] [2023-11-06 22:42:50,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566273425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:50,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:50,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:50,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329477729] [2023-11-06 22:42:50,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:50,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:50,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:50,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:50,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 461 [2023-11-06 22:42:50,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:50,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:50,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 461 [2023-11-06 22:42:50,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:50,898 INFO L124 PetriNetUnfolderBase]: 72/143 cut-off events. [2023-11-06 22:42:50,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:50,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 143 events. 72/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 508 event pairs, 72 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 297. Up to 143 conditions per place. [2023-11-06 22:42:50,901 INFO L140 encePairwiseOnDemand]: 458/461 looper letters, 14 selfloop transitions, 1 changer transitions 0/15 dead transitions. [2023-11-06 22:42:50,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 64 flow [2023-11-06 22:42:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:42:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:42:50,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 635 transitions. [2023-11-06 22:42:50,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4591467823571945 [2023-11-06 22:42:50,913 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 635 transitions. [2023-11-06 22:42:50,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 635 transitions. [2023-11-06 22:42:50,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:50,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 635 transitions. [2023-11-06 22:42:50,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 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) [2023-11-06 22:42:50,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:50,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:50,929 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 38 flow. Second operand 3 states and 635 transitions. [2023-11-06 22:42:50,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 64 flow [2023-11-06 22:42:50,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 64 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:42:50,935 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 36 flow [2023-11-06 22:42:50,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2023-11-06 22:42:50,937 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-11-06 22:42:50,937 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 36 flow [2023-11-06 22:42:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:50,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:50,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:42:50,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:42:50,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:42:50,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:50,948 INFO L85 PathProgramCache]: Analyzing trace with hash 893405, now seen corresponding path program 1 times [2023-11-06 22:42:50,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:50,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720279436] [2023-11-06 22:42:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:51,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:51,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720279436] [2023-11-06 22:42:51,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720279436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:51,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:51,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794555843] [2023-11-06 22:42:51,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:51,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:51,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:51,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:51,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:51,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 461 [2023-11-06 22:42:51,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:51,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 461 [2023-11-06 22:42:51,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:51,175 INFO L124 PetriNetUnfolderBase]: 45/94 cut-off events. [2023-11-06 22:42:51,175 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:51,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 94 events. 45/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 283 event pairs, 45 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 198. Up to 94 conditions per place. [2023-11-06 22:42:51,177 INFO L140 encePairwiseOnDemand]: 458/461 looper letters, 12 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2023-11-06 22:42:51,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 13 transitions, 58 flow [2023-11-06 22:42:51,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:42:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:42:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 633 transitions. [2023-11-06 22:42:51,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45770065075921906 [2023-11-06 22:42:51,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 633 transitions. [2023-11-06 22:42:51,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 633 transitions. [2023-11-06 22:42:51,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:51,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 633 transitions. [2023-11-06 22:42:51,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2023-11-06 22:42:51,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,194 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 633 transitions. [2023-11-06 22:42:51,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 13 transitions, 58 flow [2023-11-06 22:42:51,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 13 transitions, 57 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:42:51,196 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 33 flow [2023-11-06 22:42:51,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=31, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=33, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-11-06 22:42:51,197 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -7 predicate places. [2023-11-06 22:42:51,198 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 33 flow [2023-11-06 22:42:51,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:51,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:42:51,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:42:51,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:42:51,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash 893432, now seen corresponding path program 1 times [2023-11-06 22:42:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:51,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438744839] [2023-11-06 22:42:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:51,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:51,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:51,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438744839] [2023-11-06 22:42:51,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438744839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:51,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:51,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:51,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027023911] [2023-11-06 22:42:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:51,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:51,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:51,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:51,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 461 [2023-11-06 22:42:51,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:51,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 461 [2023-11-06 22:42:51,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:51,393 INFO L124 PetriNetUnfolderBase]: 24/55 cut-off events. [2023-11-06 22:42:51,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:51,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 55 events. 24/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 125 event pairs, 24 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 119. Up to 55 conditions per place. [2023-11-06 22:42:51,395 INFO L140 encePairwiseOnDemand]: 458/461 looper letters, 10 selfloop transitions, 1 changer transitions 0/11 dead transitions. [2023-11-06 22:42:51,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 11 transitions, 51 flow [2023-11-06 22:42:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:42:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:42:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 631 transitions. [2023-11-06 22:42:51,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45625451916124365 [2023-11-06 22:42:51,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 631 transitions. [2023-11-06 22:42:51,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 631 transitions. [2023-11-06 22:42:51,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:51,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 631 transitions. [2023-11-06 22:42:51,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2023-11-06 22:42:51,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,435 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 33 flow. Second operand 3 states and 631 transitions. [2023-11-06 22:42:51,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 11 transitions, 51 flow [2023-11-06 22:42:51,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 50 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:42:51,437 INFO L231 Difference]: Finished difference. Result has 20 places, 11 transitions, 30 flow [2023-11-06 22:42:51,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=30, PETRI_PLACES=20, PETRI_TRANSITIONS=11} [2023-11-06 22:42:51,439 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-11-06 22:42:51,440 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 11 transitions, 30 flow [2023-11-06 22:42:51,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:51,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:42:51,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:42:51,442 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:42:51,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash 893430, now seen corresponding path program 1 times [2023-11-06 22:42:51,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:51,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232430114] [2023-11-06 22:42:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:51,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:51,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:51,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232430114] [2023-11-06 22:42:51,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232430114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:51,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:51,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:51,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401284038] [2023-11-06 22:42:51,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:51,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:51,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:51,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:51,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:51,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 461 [2023-11-06 22:42:51,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 11 transitions, 30 flow. Second operand has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:51,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 461 [2023-11-06 22:42:51,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:51,688 INFO L124 PetriNetUnfolderBase]: 9/26 cut-off events. [2023-11-06 22:42:51,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:51,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 60. Up to 26 conditions per place. [2023-11-06 22:42:51,689 INFO L140 encePairwiseOnDemand]: 458/461 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-11-06 22:42:51,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 9 transitions, 44 flow [2023-11-06 22:42:51,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:42:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:42:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2023-11-06 22:42:51,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45480838756326825 [2023-11-06 22:42:51,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2023-11-06 22:42:51,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2023-11-06 22:42:51,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:51,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2023-11-06 22:42:51,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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) [2023-11-06 22:42:51,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 461.0) internal successors, (1844), 4 states have internal predecessors, (1844), 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) [2023-11-06 22:42:51,704 INFO L175 Difference]: Start difference. First operand has 20 places, 11 transitions, 30 flow. Second operand 3 states and 629 transitions. [2023-11-06 22:42:51,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 9 transitions, 44 flow [2023-11-06 22:42:51,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 9 transitions, 43 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:42:51,705 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2023-11-06 22:42:51,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=461, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2023-11-06 22:42:51,708 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -9 predicate places. [2023-11-06 22:42:51,709 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2023-11-06 22:42:51,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2023-11-06 22:42:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2023-11-06 22:42:51,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-06 22:42:51,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-06 22:42:51,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-06 22:42:51,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-06 22:42:51,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-06 22:42:51,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-06 22:42:51,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-06 22:42:51,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-06 22:42:51,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-06 22:42:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-06 22:42:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-06 22:42:51,723 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2023-11-06 22:42:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-06 22:42:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-06 22:42:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-06 22:42:51,724 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-06 22:42:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-06 22:42:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-06 22:42:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-06 22:42:51,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-06 22:42:51,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-06 22:42:51,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-06 22:42:51,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-06 22:42:51,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-06 22:42:51,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-06 22:42:51,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:42:51,727 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:42:51,735 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:42:51,735 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:42:51,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:42:51 BasicIcfg [2023-11-06 22:42:51,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:42:51,746 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:42:51,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:42:51,746 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:42:51,747 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:34" (3/4) ... [2023-11-06 22:42:51,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:42:51,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:42:51,754 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:42:51,762 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-06 22:42:51,763 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:42:51,763 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:42:51,763 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:42:51,856 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:42:51,857 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:42:51,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:42:51,858 INFO L158 Benchmark]: Toolchain (without parser) took 18554.34ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 123.9MB in the beginning and 153.5MB in the end (delta: -29.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,858 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:51,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.39ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 112.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.65ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 110.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,861 INFO L158 Benchmark]: Boogie Preprocessor took 38.10ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,862 INFO L158 Benchmark]: RCFGBuilder took 857.00ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 89.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,863 INFO L158 Benchmark]: TraceAbstraction took 17124.69ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 88.8MB in the beginning and 157.7MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:42:51,863 INFO L158 Benchmark]: Witness Printer took 110.94ms. Allocated memory is still 218.1MB. Free memory was 157.7MB in the beginning and 153.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:42:51,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.39ms. Allocated memory is still 169.9MB. Free memory was 123.9MB in the beginning and 112.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.65ms. Allocated memory is still 169.9MB. Free memory was 112.8MB in the beginning and 110.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.10ms. Allocated memory is still 169.9MB. Free memory was 110.6MB in the beginning and 109.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 857.00ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 89.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17124.69ms. Allocated memory was 169.9MB in the beginning and 218.1MB in the end (delta: 48.2MB). Free memory was 88.8MB in the beginning and 157.7MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 110.94ms. Allocated memory is still 218.1MB. Free memory was 157.7MB in the beginning and 153.5MB 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: 14.6s, 173 PlacesBefore, 28 PlacesAfterwards, 180 TransitionsBefore, 21 TransitionsAfterwards, 10988 CoEnabledTransitionPairs, 7 FixpointIterations, 32 TrivialSequentialCompositions, 145 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 50 ConcurrentYvCompositions, 14 ChoiceCompositions, 241 TotalNumberOfCompositions, 10193 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10193, independent: 10193, independent conditional: 0, independent unconditional: 10193, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6612, independent: 6612, independent conditional: 0, independent unconditional: 6612, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10193, independent: 3581, independent conditional: 0, independent unconditional: 3581, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 6612, unknown conditional: 0, unknown unconditional: 6612] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 78]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 79]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: 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 5 procedures, 328 locations, 26 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: 16.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 119 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 18 mSDtfsCounter, 119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 14, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:42:51,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a2516d7-488a-468c-b228-6424cbe1de7a/bin/uautomizer-verify-WvqO1wxjHP/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