./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/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_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/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_9984e169-1ca3-4af9-a547-33cd202c59c3/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 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:52:38,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:52:38,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:52:38,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:52:38,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:52:38,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:52:38,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:52:38,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:52:38,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:52:38,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:52:38,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:52:38,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:52:38,729 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:52:38,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:52:38,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:52:38,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:52:38,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:52:38,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:52:38,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:52:38,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:52:38,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:52:38,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:52:38,746 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:52:38,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:52:38,747 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:52:38,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:52:38,748 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:52:38,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:52:38,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:52:38,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:52:38,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:38,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:52:38,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:52:38,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:52:38,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:52:38,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:52:38,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:52:38,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:52:38,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:52:38,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:52:38,754 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:52:38,755 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_9984e169-1ca3-4af9-a547-33cd202c59c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44a86740b4b3d791346dd5ab0675f134d34312247f7633c0f06bf117457d4ce2 [2023-11-06 22:52:39,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:52:39,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:52:39,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:52:39,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:52:39,220 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:52:39,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2023-11-06 22:52:42,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:52:42,972 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:52:42,973 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2023-11-06 22:52:42,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/data/30ead8170/4a34645418cf4b05aacb019f76e807c3/FLAGafeef587a [2023-11-06 22:52:43,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/data/30ead8170/4a34645418cf4b05aacb019f76e807c3 [2023-11-06 22:52:43,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:52:43,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:52:43,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:43,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:52:43,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:52:43,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a38a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43, skipping insertion in model container [2023-11-06 22:52:43,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:52:43,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:43,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:52:43,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:52:43,398 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:52:43,400 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:52:43,409 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:52:43,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43 WrapperNode [2023-11-06 22:52:43,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:52:43,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:43,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:52:43,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:52:43,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,500 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 530 [2023-11-06 22:52:43,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:52:43,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:52:43,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:52:43,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:52:43,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,557 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:52:43,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:52:43,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:52:43,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:52:43,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (1/1) ... [2023-11-06 22:52:43,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:52:43,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:52:43,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:52:43,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9984e169-1ca3-4af9-a547-33cd202c59c3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:52:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:52:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:52:43,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:52:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:52:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:52:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:52:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:52:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:52:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:52:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:52:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:52:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:52:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:52:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:52:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:52:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:52:43,684 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:52:43,832 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:52:43,833 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:52:44,976 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:52:51,685 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:52:51,686 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:52:51,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:51 BoogieIcfgContainer [2023-11-06 22:52:51,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:52:51,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:52:51,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:52:51,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:52:51,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:52:43" (1/3) ... [2023-11-06 22:52:51,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4944259b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:51, skipping insertion in model container [2023-11-06 22:52:51,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:52:43" (2/3) ... [2023-11-06 22:52:51,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4944259b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:52:51, skipping insertion in model container [2023-11-06 22:52:51,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:52:51" (3/3) ... [2023-11-06 22:52:51,709 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2023-11-06 22:52:51,721 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:52:51,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:52:51,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2023-11-06 22:52:51,734 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:52:53,406 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:52:53,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 207 transitions, 435 flow [2023-11-06 22:52:53,736 INFO L124 PetriNetUnfolderBase]: 1/204 cut-off events. [2023-11-06 22:52:53,737 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:52:53,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 204 events. 1/204 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 516 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2023-11-06 22:52:53,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 207 transitions, 435 flow [2023-11-06 22:52:53,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 180 transitions, 375 flow [2023-11-06 22:52:53,754 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:52:53,764 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 180 transitions, 375 flow [2023-11-06 22:52:53,767 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 180 transitions, 375 flow [2023-11-06 22:52:53,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 180 transitions, 375 flow [2023-11-06 22:52:54,116 INFO L124 PetriNetUnfolderBase]: 0/180 cut-off events. [2023-11-06 22:52:54,116 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:52:54,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 180 events. 0/180 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 492 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-06 22:52:54,122 INFO L119 LiptonReduction]: Number of co-enabled transitions 6318 [2023-11-06 22:53:01,203 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 1142 DAG size of output: 411 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:53:13,021 WARN L293 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 1391 DAG size of output: 578 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:53:38,493 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 865 DAG size of output: 405 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:53:45,561 INFO L134 LiptonReduction]: Checked pairs total: 3491 [2023-11-06 22:53:45,561 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-11-06 22:53:45,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:53:45,582 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;@6f5b6582, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:53:45,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2023-11-06 22:53:45,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:53:45,586 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 22:53:45,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:53:45,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:53:45,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:53:45,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-11-06 22:53:45,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:45,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2666926, now seen corresponding path program 1 times [2023-11-06 22:53:45,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:45,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977092919] [2023-11-06 22:53:45,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:45,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:46,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:46,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977092919] [2023-11-06 22:53:46,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977092919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:46,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:46,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:53:46,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309235281] [2023-11-06 22:53:46,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:46,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:53:46,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:46,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:53:46,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:53:46,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 301 [2023-11-06 22:53:46,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 86 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:53:46,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:53:46,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 301 [2023-11-06 22:53:46,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:40,783 INFO L124 PetriNetUnfolderBase]: 29733/42766 cut-off events. [2023-11-06 22:54:40,784 INFO L125 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2023-11-06 22:54:40,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86565 conditions, 42766 events. 29733/42766 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 5816. Compared 314092 event pairs, 29733 based on Foata normal form. 0/9294 useless extension candidates. Maximal degree in co-relation 82328. Up to 42767 conditions per place. [2023-11-06 22:54:41,141 INFO L140 encePairwiseOnDemand]: 277/301 looper letters, 62 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2023-11-06 22:54:41,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 263 flow [2023-11-06 22:54:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:54:41,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:54:41,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 334 transitions. [2023-11-06 22:54:41,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5548172757475083 [2023-11-06 22:54:41,166 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 334 transitions. [2023-11-06 22:54:41,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 334 transitions. [2023-11-06 22:54:41,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:41,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 334 transitions. [2023-11-06 22:54:41,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,188 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,191 INFO L175 Difference]: Start difference. First operand has 96 places, 86 transitions, 187 flow. Second operand 2 states and 334 transitions. [2023-11-06 22:54:41,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 263 flow [2023-11-06 22:54:41,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 254 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:54:41,755 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 130 flow [2023-11-06 22:54:41,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=130, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-11-06 22:54:41,762 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2023-11-06 22:54:41,763 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 130 flow [2023-11-06 22:54:41,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:41,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:41,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:54:41,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:54:41,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 144 more)] === [2023-11-06 22:54:41,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2666937, now seen corresponding path program 1 times [2023-11-06 22:54:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:41,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672430795] [2023-11-06 22:54:41,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:41,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:42,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:42,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672430795] [2023-11-06 22:54:42,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672430795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:42,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:42,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:54:42,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003727452] [2023-11-06 22:54:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:42,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:54:42,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:42,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:54:42,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:54:42,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 301 [2023-11-06 22:54:42,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:54:42,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:42,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 301 [2023-11-06 22:54:42,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand