./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:05,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:05,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:56:05,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:05,205 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:05,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:05,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:05,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:05,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:56:05,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:56:05,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:05,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:05,253 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:05,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:05,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:56:05,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:56:05,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:05,257 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:56:05,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:05,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:56:05,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:56:05,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:56:05,260 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:56:05,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:05,261 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:56:05,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:05,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:05,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:05,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:05,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:56:05,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:05,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:05,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:56:05,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:56:05,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:05,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:56:05,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:56:05,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:56:05,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:56:05,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:56:05,295 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:56:05,296 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_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2023-11-19 07:56:05,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:05,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:05,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:05,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:05,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:05,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-19 07:56:08,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:09,052 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:09,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-19 07:56:09,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/data/ba69b7f18/5bdf2923e79e4f459d9dbf3178ecc5c0/FLAG3040ff704 [2023-11-19 07:56:09,077 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/data/ba69b7f18/5bdf2923e79e4f459d9dbf3178ecc5c0 [2023-11-19 07:56:09,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:09,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:09,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:09,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:09,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:09,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,096 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f0f6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09, skipping insertion in model container [2023-11-19 07:56:09,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,122 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:09,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:09,399 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:09,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:09,461 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:09,461 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:56:09,469 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:09,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09 WrapperNode [2023-11-19 07:56:09,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:09,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:09,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:09,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:09,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,533 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 314 [2023-11-19 07:56:09,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:09,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:09,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:09,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:09,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:09,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:09,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:09,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:09,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2023-11-19 07:56:09,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:56:09,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:09,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:09,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:56:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:56:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:56:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:56:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:56:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:56:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:56:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:56:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:56:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:56:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:56:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:56:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:56:09,671 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:56:09,801 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:09,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:10,499 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:11,232 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:11,233 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:56:11,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:11 BoogieIcfgContainer [2023-11-19 07:56:11,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:11,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:11,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:11,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:11,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:09" (1/3) ... [2023-11-19 07:56:11,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127ea002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:11, skipping insertion in model container [2023-11-19 07:56:11,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (2/3) ... [2023-11-19 07:56:11,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127ea002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:11, skipping insertion in model container [2023-11-19 07:56:11,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:11" (3/3) ... [2023-11-19 07:56:11,258 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-11-19 07:56:11,268 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:56:11,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:11,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-19 07:56:11,280 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:56:11,798 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:56:11,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 349 transitions, 719 flow [2023-11-19 07:56:12,101 INFO L124 PetriNetUnfolderBase]: 42/346 cut-off events. [2023-11-19 07:56:12,102 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:56:12,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 346 events. 42/346 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 833 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 254. Up to 6 conditions per place. [2023-11-19 07:56:12,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 349 transitions, 719 flow [2023-11-19 07:56:12,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 319 transitions, 656 flow [2023-11-19 07:56:12,150 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:56:12,159 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 319 transitions, 656 flow [2023-11-19 07:56:12,164 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 319 transitions, 656 flow [2023-11-19 07:56:12,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 319 transitions, 656 flow [2023-11-19 07:56:12,286 INFO L124 PetriNetUnfolderBase]: 40/319 cut-off events. [2023-11-19 07:56:12,286 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:56:12,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 319 events. 40/319 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 795 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 254. Up to 6 conditions per place. [2023-11-19 07:56:12,316 INFO L119 LiptonReduction]: Number of co-enabled transitions 32550 [2023-11-19 07:56:41,677 INFO L134 LiptonReduction]: Checked pairs total: 36199 [2023-11-19 07:56:41,678 INFO L136 LiptonReduction]: Total number of compositions: 406 [2023-11-19 07:56:41,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:41,724 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11917732, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:41,724 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-19 07:56:41,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:56:41,727 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-19 07:56:41,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:41,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:41,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:56:41,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-19 07:56:41,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 55325, now seen corresponding path program 1 times [2023-11-19 07:56:41,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:41,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037563947] [2023-11-19 07:56:41,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:41,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:42,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:42,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037563947] [2023-11-19 07:56:42,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037563947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:42,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:42,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:56:42,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338560303] [2023-11-19 07:56:42,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:42,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:42,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:42,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:42,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:42,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 755 [2023-11-19 07:56:42,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:42,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:42,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 755 [2023-11-19 07:56:42,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:45,538 INFO L124 PetriNetUnfolderBase]: 9073/12847 cut-off events. [2023-11-19 07:56:45,539 INFO L125 PetriNetUnfolderBase]: For 518/518 co-relation queries the response was YES. [2023-11-19 07:56:45,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26157 conditions, 12847 events. 9073/12847 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 72400 event pairs, 8157 based on Foata normal form. 0/4616 useless extension candidates. Maximal degree in co-relation 24312. Up to 12847 conditions per place. [2023-11-19 07:56:45,668 INFO L140 encePairwiseOnDemand]: 736/755 looper letters, 52 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2023-11-19 07:56:45,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 238 flow [2023-11-19 07:56:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2023-11-19 07:56:45,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41677704194260484 [2023-11-19 07:56:45,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2023-11-19 07:56:45,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2023-11-19 07:56:45,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:45,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2023-11-19 07:56:45,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:45,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:45,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:45,726 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 152 flow. Second operand 3 states and 944 transitions. [2023-11-19 07:56:45,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 238 flow [2023-11-19 07:56:45,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 226 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:56:45,769 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 133 flow [2023-11-19 07:56:45,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=755, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2023-11-19 07:56:45,776 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -17 predicate places. [2023-11-19 07:56:45,777 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 133 flow [2023-11-19 07:56:45,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:45,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:45,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:56:45,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:45,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-19 07:56:45,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:45,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1718621, now seen corresponding path program 1 times [2023-11-19 07:56:45,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:45,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701158789] [2023-11-19 07:56:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:45,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:45,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701158789] [2023-11-19 07:56:45,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701158789] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:45,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822135513] [2023-11-19 07:56:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:45,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:45,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:45,995 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:46,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:56:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:46,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:56:46,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:46,269 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:46,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822135513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:46,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:46,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-19 07:56:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593255028] [2023-11-19 07:56:46,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:46,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:56:46,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:56:46,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:56:46,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 755 [2023-11-19 07:56:46,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 133 flow. Second operand has 7 states, 7 states have (on average 292.14285714285717) internal successors, (2045), 7 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:46,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:46,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 755 [2023-11-19 07:56:46,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:49,602 INFO L124 PetriNetUnfolderBase]: 9079/12856 cut-off events. [2023-11-19 07:56:49,603 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2023-11-19 07:56:49,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25891 conditions, 12856 events. 9079/12856 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 72405 event pairs, 8157 based on Foata normal form. 0/4619 useless extension candidates. Maximal degree in co-relation 25837. Up to 12849 conditions per place. [2023-11-19 07:56:49,713 INFO L140 encePairwiseOnDemand]: 750/755 looper letters, 51 selfloop transitions, 13 changer transitions 0/64 dead transitions. [2023-11-19 07:56:49,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 297 flow [2023-11-19 07:56:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:56:49,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:56:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2104 transitions. [2023-11-19 07:56:49,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3981078524124882 [2023-11-19 07:56:49,735 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2104 transitions. [2023-11-19 07:56:49,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2104 transitions. [2023-11-19 07:56:49,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:49,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2104 transitions. [2023-11-19 07:56:49,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 300.57142857142856) internal successors, (2104), 7 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 755.0) internal successors, (6040), 8 states have internal predecessors, (6040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,768 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 755.0) internal successors, (6040), 8 states have internal predecessors, (6040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,769 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 133 flow. Second operand 7 states and 2104 transitions. [2023-11-19 07:56:49,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 297 flow [2023-11-19 07:56:49,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 292 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:56:49,774 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 212 flow [2023-11-19 07:56:49,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=755, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=212, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2023-11-19 07:56:49,776 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -9 predicate places. [2023-11-19 07:56:49,776 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 212 flow [2023-11-19 07:56:49,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 292.14285714285717) internal successors, (2045), 7 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:49,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:49,779 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2023-11-19 07:56:49,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:49,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:49,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-19 07:56:49,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:49,995 INFO L85 PathProgramCache]: Analyzing trace with hash 53280093, now seen corresponding path program 1 times [2023-11-19 07:56:49,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:49,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312183343] [2023-11-19 07:56:49,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:49,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:50,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:56:50,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:50,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312183343] [2023-11-19 07:56:50,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312183343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:50,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:50,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:50,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026705616] [2023-11-19 07:56:50,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:50,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:50,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:50,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:50,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 755 [2023-11-19 07:56:50,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:50,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:50,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 755 [2023-11-19 07:56:50,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:53,274 INFO L124 PetriNetUnfolderBase]: 9076/12852 cut-off events. [2023-11-19 07:56:53,274 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-11-19 07:56:53,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25899 conditions, 12852 events. 9076/12852 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 72378 event pairs, 8157 based on Foata normal form. 0/4623 useless extension candidates. Maximal degree in co-relation 25863. Up to 12846 conditions per place. [2023-11-19 07:56:53,374 INFO L140 encePairwiseOnDemand]: 752/755 looper letters, 54 selfloop transitions, 6 changer transitions 0/60 dead transitions. [2023-11-19 07:56:53,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 305 flow [2023-11-19 07:56:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2023-11-19 07:56:53,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4088300220750552 [2023-11-19 07:56:53,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 926 transitions. [2023-11-19 07:56:53,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 926 transitions. [2023-11-19 07:56:53,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:53,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 926 transitions. [2023-11-19 07:56:53,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:53,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:53,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:53,395 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 212 flow. Second operand 3 states and 926 transitions. [2023-11-19 07:56:53,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 305 flow [2023-11-19 07:56:53,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 60 transitions, 284 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-11-19 07:56:53,400 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 176 flow [2023-11-19 07:56:53,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=755, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2023-11-19 07:56:53,402 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2023-11-19 07:56:53,403 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 176 flow [2023-11-19 07:56:53,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:53,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:53,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:56:53,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:56:53,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-19 07:56:53,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1651526236, now seen corresponding path program 1 times [2023-11-19 07:56:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822368478] [2023-11-19 07:56:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:53,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:53,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:53,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822368478] [2023-11-19 07:56:53,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822368478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:53,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:53,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:53,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352417938] [2023-11-19 07:56:53,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:53,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:53,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:53,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:53,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 755 [2023-11-19 07:56:53,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:53,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:53,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 755 [2023-11-19 07:56:53,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:56,498 INFO L124 PetriNetUnfolderBase]: 9075/12851 cut-off events. [2023-11-19 07:56:56,498 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2023-11-19 07:56:56,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25891 conditions, 12851 events. 9075/12851 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 1069. Compared 72634 event pairs, 8157 based on Foata normal form. 1/4625 useless extension candidates. Maximal degree in co-relation 25861. Up to 12851 conditions per place. [2023-11-19 07:56:56,588 INFO L140 encePairwiseOnDemand]: 752/755 looper letters, 57 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2023-11-19 07:56:56,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 287 flow [2023-11-19 07:56:56,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:56,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-11-19 07:56:56,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066225165562914 [2023-11-19 07:56:56,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-11-19 07:56:56,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-11-19 07:56:56,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:56,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-11-19 07:56:56,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:56,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:56,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 755.0) internal successors, (3020), 4 states have internal predecessors, (3020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:56,610 INFO L175 Difference]: Start difference. First operand has 63 places, 60 transitions, 176 flow. Second operand 3 states and 921 transitions. [2023-11-19 07:56:56,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 287 flow [2023-11-19 07:56:56,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:56:56,613 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 163 flow [2023-11-19 07:56:56,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=755, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2023-11-19 07:56:56,614 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -10 predicate places. [2023-11-19 07:56:56,615 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 163 flow [2023-11-19 07:56:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:56,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:56,616 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-19 07:56:56,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:56:56,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-19 07:56:56,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash -337325389, now seen corresponding path program 2 times [2023-11-19 07:56:56,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:56,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671997096] [2023-11-19 07:56:56,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:56,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:56,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:56,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671997096] [2023-11-19 07:56:56,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671997096] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:56,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58997193] [2023-11-19 07:56:56,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:56,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:56,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:56,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:56,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31d95f50-4615-4584-8272-353a7c900f95/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:56:56,993 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:56:56,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:56,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:56:56,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:56:57,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:57,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58997193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:57,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:56:57,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-19 07:56:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143080670] [2023-11-19 07:56:57,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:57,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:56:57,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 755 [2023-11-19 07:56:57,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:57,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:57,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 755 [2023-11-19 07:56:57,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand