./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl --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 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:43,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:43,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:17:43,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:43,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:43,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:43,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:43,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:43,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:43,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:43,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:43,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:43,339 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:43,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:43,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:43,341 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:43,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:43,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:43,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:43,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:43,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:43,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:43,344 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:17:43,345 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:43,345 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:43,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:43,346 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:43,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:43,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:43,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:43,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:43,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:43,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:43,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:43,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:43,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:43,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:43,350 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:43,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:43,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:43,351 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:43,351 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_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2023-11-12 02:17:43,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:43,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:43,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:43,678 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:43,679 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:43,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-12 02:17:46,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:47,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:47,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-12 02:17:47,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/data/fd09671a1/4538c0a8b14d4ce28df212221428dfd2/FLAGf6503473c [2023-11-12 02:17:47,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/data/fd09671a1/4538c0a8b14d4ce28df212221428dfd2 [2023-11-12 02:17:47,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:47,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:47,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:47,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:47,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:47,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:47,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503ebf2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47, skipping insertion in model container [2023-11-12 02:17:47,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:47,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:47,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:47,747 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:47,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:47,890 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:47,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47 WrapperNode [2023-11-12 02:17:47,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:47,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:47,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:47,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:47,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:47,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:47,984 INFO L138 Inliner]: procedures = 172, calls = 51, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 243 [2023-11-12 02:17:47,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:47,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:47,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:47,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:47,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:47,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:48,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:48,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:48,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:48,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (1/1) ... [2023-11-12 02:17:48,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:48,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:48,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:48,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cdb2b384-970d-40a2-bf3b-01829d50fb44/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:17:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-12 02:17:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-12 02:17:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:17:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-12 02:17:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-12 02:17:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:48,146 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:17:48,294 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:48,297 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:48,675 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:48,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:48,688 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-12 02:17:48,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:48 BoogieIcfgContainer [2023-11-12 02:17:48,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:48,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:48,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:48,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:48,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:47" (1/3) ... [2023-11-12 02:17:48,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f081ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:48, skipping insertion in model container [2023-11-12 02:17:48,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:47" (2/3) ... [2023-11-12 02:17:48,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f081ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:48, skipping insertion in model container [2023-11-12 02:17:48,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:48" (3/3) ... [2023-11-12 02:17:48,700 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-12 02:17:48,711 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:17:48,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:48,723 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-12 02:17:48,723 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:17:48,882 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:17:48,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,194 INFO L124 PetriNetUnfolderBase]: 61/481 cut-off events. [2023-11-12 02:17:49,198 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:17:49,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 481 events. 61/481 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2233 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-12 02:17:49,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,233 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:49,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,247 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 267 transitions, 554 flow [2023-11-12 02:17:49,386 INFO L124 PetriNetUnfolderBase]: 61/481 cut-off events. [2023-11-12 02:17:49,386 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-12 02:17:49,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 481 events. 61/481 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2233 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-12 02:17:49,423 INFO L119 LiptonReduction]: Number of co-enabled transitions 31878 [2023-11-12 02:17:56,408 INFO L134 LiptonReduction]: Checked pairs total: 55956 [2023-11-12 02:17:56,408 INFO L136 LiptonReduction]: Total number of compositions: 239 [2023-11-12 02:17:56,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:56,432 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;@58893f23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:56,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-12 02:17:56,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:56,437 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-12 02:17:56,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:56,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:56,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:56,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:17:56,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:56,445 INFO L85 PathProgramCache]: Analyzing trace with hash 33546063, now seen corresponding path program 1 times [2023-11-12 02:17:56,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:56,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688836355] [2023-11-12 02:17:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:56,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:56,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:56,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688836355] [2023-11-12 02:17:56,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688836355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:56,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:17:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917843055] [2023-11-12 02:17:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:56,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:56,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:56,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:56,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:56,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 506 [2023-11-12 02:17:56,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 94 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2023-11-12 02:17:56,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:56,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 506 [2023-11-12 02:17:56,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:58,432 INFO L124 PetriNetUnfolderBase]: 6674/10965 cut-off events. [2023-11-12 02:17:58,433 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-12 02:17:58,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21135 conditions, 10965 events. 6674/10965 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 74800 event pairs, 5657 based on Foata normal form. 1528/8626 useless extension candidates. Maximal degree in co-relation 20196. Up to 10033 conditions per place. [2023-11-12 02:17:58,570 INFO L140 encePairwiseOnDemand]: 480/506 looper letters, 75 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-12 02:17:58,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 352 flow [2023-11-12 02:17:58,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2023-11-12 02:17:58,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5184453227931489 [2023-11-12 02:17:58,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2023-11-12 02:17:58,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2023-11-12 02:17:58,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:58,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2023-11-12 02:17:58,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2023-11-12 02:17:58,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 506.0) internal successors, (2024), 4 states have internal predecessors, (2024), 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) [2023-11-12 02:17:58,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 506.0) internal successors, (2024), 4 states have internal predecessors, (2024), 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) [2023-11-12 02:17:58,631 INFO L175 Difference]: Start difference. First operand has 72 places, 94 transitions, 208 flow. Second operand 3 states and 787 transitions. [2023-11-12 02:17:58,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 352 flow [2023-11-12 02:17:58,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:58,645 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 170 flow [2023-11-12 02:17:58,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=506, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2023-11-12 02:17:58,658 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2023-11-12 02:17:58,659 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 170 flow [2023-11-12 02:17:58,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2023-11-12 02:17:58,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:58,660 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:17:58,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:58,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-12 02:17:58,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -2121890128, now seen corresponding path program 1 times [2023-11-12 02:17:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:58,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403092113] [2023-11-12 02:17:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:58,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:58,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:58,775 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:58,777 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-11-12 02:17:58,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-12 02:17:58,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-12 02:17:58,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-12 02:17:58,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-12 02:17:58,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-12 02:17:58,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-12 02:17:58,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-12 02:17:58,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-12 02:17:58,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-12 02:17:58,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-12 02:17:58,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-12 02:17:58,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-12 02:17:58,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-12 02:17:58,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-12 02:17:58,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-12 02:17:58,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-12 02:17:58,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-12 02:17:58,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-12 02:17:58,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-12 02:17:58,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-12 02:17:58,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-12 02:17:58,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-12 02:17:58,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-12 02:17:58,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-12 02:17:58,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-12 02:17:58,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:58,795 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:58,799 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:17:58,799 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:17:58,908 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-12 02:17:58,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,331 INFO L124 PetriNetUnfolderBase]: 205/1442 cut-off events. [2023-11-12 02:17:59,332 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-12 02:17:59,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1442 events. 205/1442 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9462 event pairs, 2 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 869. Up to 32 conditions per place. [2023-11-12 02:17:59,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,394 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:59,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,400 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 427 transitions, 898 flow [2023-11-12 02:17:59,824 INFO L124 PetriNetUnfolderBase]: 205/1442 cut-off events. [2023-11-12 02:17:59,824 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-12 02:17:59,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1442 events. 205/1442 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9462 event pairs, 2 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 869. Up to 32 conditions per place. [2023-11-12 02:18:00,005 INFO L119 LiptonReduction]: Number of co-enabled transitions 114268 [2023-11-12 02:18:08,471 INFO L134 LiptonReduction]: Checked pairs total: 227663 [2023-11-12 02:18:08,471 INFO L136 LiptonReduction]: Total number of compositions: 371 [2023-11-12 02:18:08,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:18:08,482 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;@58893f23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:18:08,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-12 02:18:08,487 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:18:08,487 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-12 02:18:08,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:18:08,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:08,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:18:08,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-12 02:18:08,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1951132920, now seen corresponding path program 1 times [2023-11-12 02:18:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695738847] [2023-11-12 02:18:08,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:08,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:08,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695738847] [2023-11-12 02:18:08,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695738847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:08,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:08,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:18:08,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248578555] [2023-11-12 02:18:08,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:08,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:18:08,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:18:08,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:18:08,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 798 [2023-11-12 02:18:08,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 165 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 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) [2023-11-12 02:18:08,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:18:08,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 798 [2023-11-12 02:18:08,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand