./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.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_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/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_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/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_d646b85f-f9c6-4794-8d44-744d0a012953/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 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:16:13,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:16:13,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:16:13,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:16:13,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:16:13,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:16:13,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:16:13,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:16:13,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:16:13,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:16:13,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:16:13,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:16:13,980 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:16:13,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:16:13,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:16:13,983 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:16:13,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:16:13,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:16:13,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:16:13,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:16:13,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:16:13,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:16:13,986 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:16:13,987 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:16:13,987 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:16:13,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:16:13,988 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:16:13,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:16:13,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:16:13,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:16:13,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:16:13,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:16:13,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:16:13,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:16:13,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:16:13,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:16:13,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:16:13,993 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:16:13,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:16:13,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:16:13,994 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:16:13,994 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_d646b85f-f9c6-4794-8d44-744d0a012953/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2023-11-06 21:16:14,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:16:14,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:16:14,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:16:14,403 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:16:14,403 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:16:14,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-06 21:16:17,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:16:17,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:16:17,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-06 21:16:17,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/data/f285fa60f/fbbfdc83146141a6ada8e9b255ff6cd0/FLAGc9d3339cc [2023-11-06 21:16:17,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/data/f285fa60f/fbbfdc83146141a6ada8e9b255ff6cd0 [2023-11-06 21:16:17,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:16:17,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:16:17,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:16:17,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:16:17,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:16:17,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:17" (1/1) ... [2023-11-06 21:16:17,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52439afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:17, skipping insertion in model container [2023-11-06 21:16:17,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:16:17" (1/1) ... [2023-11-06 21:16:17,783 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:16:18,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:16:18,016 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:16:18,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:16:18,147 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:16:18,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18 WrapperNode [2023-11-06 21:16:18,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:16:18,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:16:18,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:16:18,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:16:18,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,220 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 737 [2023-11-06 21:16:18,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:16:18,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:16:18,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:16:18,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:16:18,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:16:18,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:16:18,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:16:18,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:16:18,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (1/1) ... [2023-11-06 21:16:18,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:16:18,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:16:18,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:16:18,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:16:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:16:18,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:16:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:16:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:16:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:16:18,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:16:18,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:16:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 21:16:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 21:16:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:16:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:16:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:16:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:16:18,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:16:18,376 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 21:16:18,609 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:16:18,619 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:16:19,828 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:16:19,851 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:16:19,852 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 21:16:19,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:16:19 BoogieIcfgContainer [2023-11-06 21:16:19,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:16:19,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:16:19,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:16:19,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:16:19,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:16:17" (1/3) ... [2023-11-06 21:16:19,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deeb102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:16:19, skipping insertion in model container [2023-11-06 21:16:19,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:16:18" (2/3) ... [2023-11-06 21:16:19,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5deeb102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:16:19, skipping insertion in model container [2023-11-06 21:16:19,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:16:19" (3/3) ... [2023-11-06 21:16:19,869 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-11-06 21:16:19,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:16:19,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:16:19,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2023-11-06 21:16:19,892 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:16:20,239 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 21:16:20,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 918 places, 999 transitions, 2019 flow [2023-11-06 21:16:21,058 INFO L124 PetriNetUnfolderBase]: 91/996 cut-off events. [2023-11-06 21:16:21,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:16:21,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 996 events. 91/996 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4101 event pairs, 0 based on Foata normal form. 0/845 useless extension candidates. Maximal degree in co-relation 736. Up to 2 conditions per place. [2023-11-06 21:16:21,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 918 places, 999 transitions, 2019 flow [2023-11-06 21:16:21,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 892 places, 972 transitions, 1959 flow [2023-11-06 21:16:21,149 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:16:21,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 892 places, 972 transitions, 1959 flow [2023-11-06 21:16:21,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 892 places, 972 transitions, 1959 flow [2023-11-06 21:16:21,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 892 places, 972 transitions, 1959 flow [2023-11-06 21:16:21,632 INFO L124 PetriNetUnfolderBase]: 90/972 cut-off events. [2023-11-06 21:16:21,632 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:16:21,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 972 events. 90/972 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4031 event pairs, 0 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 736. Up to 2 conditions per place. [2023-11-06 21:16:21,791 INFO L119 LiptonReduction]: Number of co-enabled transitions 359934 [2023-11-06 21:17:29,865 INFO L134 LiptonReduction]: Checked pairs total: 362880 [2023-11-06 21:17:29,866 INFO L136 LiptonReduction]: Total number of compositions: 1331 [2023-11-06 21:17:29,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:17:29,889 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;@3efb2225, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:17:29,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 117 error locations. [2023-11-06 21:17:29,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:17:29,893 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 21:17:29,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:17:29,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:17:29,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 21:17:29,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2023-11-06 21:17:29,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:17:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash 142160, now seen corresponding path program 1 times [2023-11-06 21:17:29,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:17:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581274984] [2023-11-06 21:17:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:17:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:17:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:30,271 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 21:17:30,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:17:30,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581274984] [2023-11-06 21:17:30,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581274984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:17:30,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:17:30,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:17:30,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823841969] [2023-11-06 21:17:30,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:17:30,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:17:30,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:17:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:17:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:17:30,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 2330 [2023-11-06 21:17:30,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 107 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 940.6666666666666) internal successors, (2822), 3 states have internal predecessors, (2822), 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 21:17:30,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:17:30,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 2330 [2023-11-06 21:17:30,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:17:41,609 INFO L124 PetriNetUnfolderBase]: 48941/66982 cut-off events. [2023-11-06 21:17:41,610 INFO L125 PetriNetUnfolderBase]: For 1585/1585 co-relation queries the response was YES. [2023-11-06 21:17:41,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135521 conditions, 66982 events. 48941/66982 cut-off events. For 1585/1585 co-relation queries the response was YES. Maximal size of possible extension queue 2185. Compared 402646 event pairs, 41373 based on Foata normal form. 0/25606 useless extension candidates. Maximal degree in co-relation 130712. Up to 66978 conditions per place. [2023-11-06 21:17:42,048 INFO L140 encePairwiseOnDemand]: 2301/2330 looper letters, 90 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2023-11-06 21:17:42,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 97 transitions, 403 flow [2023-11-06 21:17:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:17:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:17:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2939 transitions. [2023-11-06 21:17:42,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4204577968526466 [2023-11-06 21:17:42,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2939 transitions. [2023-11-06 21:17:42,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2939 transitions. [2023-11-06 21:17:42,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:17:42,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2939 transitions. [2023-11-06 21:17:42,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 979.6666666666666) internal successors, (2939), 3 states have internal predecessors, (2939), 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 21:17:42,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2330.0) internal successors, (9320), 4 states have internal predecessors, (9320), 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 21:17:42,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2330.0) internal successors, (9320), 4 states have internal predecessors, (9320), 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 21:17:42,134 INFO L175 Difference]: Start difference. First operand has 104 places, 107 transitions, 229 flow. Second operand 3 states and 2939 transitions. [2023-11-06 21:17:42,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 97 transitions, 403 flow [2023-11-06 21:17:42,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 394 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:17:42,179 INFO L231 Difference]: Finished difference. Result has 88 places, 97 transitions, 252 flow [2023-11-06 21:17:42,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2330, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=88, PETRI_TRANSITIONS=97} [2023-11-06 21:17:42,185 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -16 predicate places. [2023-11-06 21:17:42,186 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 97 transitions, 252 flow [2023-11-06 21:17:42,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 940.6666666666666) internal successors, (2822), 3 states have internal predecessors, (2822), 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 21:17:42,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:17:42,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:17:42,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:17:42,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2023-11-06 21:17:42,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:17:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash 4416936, now seen corresponding path program 1 times [2023-11-06 21:17:42,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:17:42,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991601220] [2023-11-06 21:17:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:17:42,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:17:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:17:42,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:17:42,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991601220] [2023-11-06 21:17:42,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991601220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:17:42,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:17:42,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:17:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842678225] [2023-11-06 21:17:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:17:42,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:17:42,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:17:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:17:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:17:42,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 2330 [2023-11-06 21:17:42,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 97 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 941.0) internal successors, (2823), 3 states have internal predecessors, (2823), 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 21:17:42,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:17:42,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 2330 [2023-11-06 21:17:42,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:17:52,569 INFO L124 PetriNetUnfolderBase]: 48941/66979 cut-off events. [2023-11-06 21:17:52,569 INFO L125 PetriNetUnfolderBase]: For 324/324 co-relation queries the response was YES. [2023-11-06 21:17:52,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135162 conditions, 66979 events. 48941/66979 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 2185. Compared 401695 event pairs, 41373 based on Foata normal form. 0/25610 useless extension candidates. Maximal degree in co-relation 135103. Up to 66966 conditions per place. [2023-11-06 21:17:52,947 INFO L140 encePairwiseOnDemand]: 2325/2330 looper letters, 91 selfloop transitions, 3 changer transitions 0/94 dead transitions. [2023-11-06 21:17:52,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 94 transitions, 428 flow [2023-11-06 21:17:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:17:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:17:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2911 transitions. [2023-11-06 21:17:52,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41645207439198856 [2023-11-06 21:17:52,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2911 transitions. [2023-11-06 21:17:52,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2911 transitions. [2023-11-06 21:17:52,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:17:52,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2911 transitions. [2023-11-06 21:17:52,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 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 21:17:52,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2330.0) internal successors, (9320), 4 states have internal predecessors, (9320), 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 21:17:53,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2330.0) internal successors, (9320), 4 states have internal predecessors, (9320), 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 21:17:53,003 INFO L175 Difference]: Start difference. First operand has 88 places, 97 transitions, 252 flow. Second operand 3 states and 2911 transitions. [2023-11-06 21:17:53,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 94 transitions, 428 flow [2023-11-06 21:17:53,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 94 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:17:53,010 INFO L231 Difference]: Finished difference. Result has 85 places, 94 transitions, 232 flow [2023-11-06 21:17:53,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2330, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=85, PETRI_TRANSITIONS=94} [2023-11-06 21:17:53,013 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, -19 predicate places. [2023-11-06 21:17:53,013 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 94 transitions, 232 flow [2023-11-06 21:17:53,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 941.0) internal successors, (2823), 3 states have internal predecessors, (2823), 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 21:17:53,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:17:53,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:17:53,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:17:53,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 114 more)] === [2023-11-06 21:17:53,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:17:53,026 INFO L85 PathProgramCache]: Analyzing trace with hash 4417130, now seen corresponding path program 1 times [2023-11-06 21:17:53,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:17:53,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050687008] [2023-11-06 21:17:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:17:53,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:17:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:17:53,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:17:53,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050687008] [2023-11-06 21:17:53,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050687008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:17:53,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078142411] [2023-11-06 21:17:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:17:53,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:17:53,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:17:53,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:17:53,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d646b85f-f9c6-4794-8d44-744d0a012953/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:17:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:17:53,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:17:53,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:17:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:17:53,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:17:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:17:53,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078142411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:17:53,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:17:53,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-06 21:17:53,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339475380] [2023-11-06 21:17:53,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:17:53,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:17:53,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:17:53,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:17:53,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:17:53,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 2330 [2023-11-06 21:17:53,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 94 transitions, 232 flow. Second operand has 7 states, 7 states have (on average 941.1428571428571) internal successors, (6588), 7 states have internal predecessors, (6588), 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 21:17:53,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:17:53,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 2330 [2023-11-06 21:17:53,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand