./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-symm.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_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:04:37,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:04:37,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:04:37,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:04:37,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:04:37,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:04:37,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:04:37,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:04:37,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:04:37,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:04:37,660 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:04:37,661 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:04:37,661 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:04:37,662 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:04:37,663 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:04:37,663 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:04:37,664 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:04:37,665 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:04:37,666 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:04:37,666 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:04:37,667 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:04:37,668 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:04:37,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:04:37,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:04:37,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:04:37,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:04:37,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:04:37,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:04:37,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:04:37,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:04:37,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:04:37,699 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:04:37,700 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:04:37,700 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:04:37,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:04:37,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:04:37,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:04:37,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:04:37,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:37,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:04:37,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:04:37,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:04:37,705 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:04:37,706 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:04:37,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:04:37,707 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:04:37,707 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:04:37,707 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 631177edb7ca950f3594c5b6eaac98148a00ee69e6a0cd62c1c95947fa56259c [2023-11-19 05:04:38,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:04:38,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:04:38,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:04:38,100 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:04:38,101 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:04:38,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2023-11-19 05:04:41,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:04:41,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:04:41,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/sv-benchmarks/c/weaver/chl-collitem-symm.wvr.c [2023-11-19 05:04:41,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/data/e98a4e87a/627c352972d0488cb56832172d9a3144/FLAGd97e5e4ea [2023-11-19 05:04:41,883 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/data/e98a4e87a/627c352972d0488cb56832172d9a3144 [2023-11-19 05:04:41,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:04:41,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:04:41,903 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:41,903 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:04:41,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:04:41,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:41" (1/1) ... [2023-11-19 05:04:41,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1840991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:41, skipping insertion in model container [2023-11-19 05:04:41,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:41" (1/1) ... [2023-11-19 05:04:41,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:04:42,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:42,223 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:04:42,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:42,280 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:42,281 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:42,291 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:04:42,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42 WrapperNode [2023-11-19 05:04:42,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:42,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:42,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:04:42,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:04:42,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,363 INFO L138 Inliner]: procedures = 22, calls = 36, calls flagged for inlining = 16, calls inlined = 30, statements flattened = 377 [2023-11-19 05:04:42,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:42,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:04:42,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:04:42,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:04:42,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,413 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:04:42,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:04:42,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:04:42,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:04:42,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (1/1) ... [2023-11-19 05:04:42,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:42,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:42,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:04:42,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3e9ebb9-4f34-4f6e-9b12-2bc007f208b6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:04:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:04:42,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 05:04:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 05:04:42,534 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 05:04:42,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 05:04:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:04:42,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:04:42,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:04:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:04:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:04:42,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:04:42,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:04:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:04:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:04:42,542 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:04:42,702 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:04:42,704 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:04:43,741 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:04:47,122 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:04:47,122 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:04:47,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:47 BoogieIcfgContainer [2023-11-19 05:04:47,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:04:47,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:04:47,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:04:47,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:04:47,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:04:41" (1/3) ... [2023-11-19 05:04:47,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1dc944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:47, skipping insertion in model container [2023-11-19 05:04:47,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:42" (2/3) ... [2023-11-19 05:04:47,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1dc944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:47, skipping insertion in model container [2023-11-19 05:04:47,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:47" (3/3) ... [2023-11-19 05:04:47,139 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-symm.wvr.c [2023-11-19 05:04:47,153 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:04:47,166 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:04:47,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-11-19 05:04:47,168 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:04:48,529 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 05:04:48,589 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:04:48,621 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 247 transitions, 508 flow [2023-11-19 05:04:48,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 247 transitions, 508 flow [2023-11-19 05:04:48,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 247 transitions, 508 flow [2023-11-19 05:04:48,943 INFO L124 PetriNetUnfolderBase]: 78/245 cut-off events. [2023-11-19 05:04:48,944 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 05:04:48,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 245 events. 78/245 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 445 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 170. Up to 16 conditions per place. [2023-11-19 05:04:48,966 INFO L119 LiptonReduction]: Number of co-enabled transitions 8502