./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/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_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/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_b133b907-f603-4664-9a81-d44e48538c7f/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 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:05:37,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:05:37,391 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:05:37,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:05:37,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:05:37,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:05:37,464 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:05:37,465 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:05:37,466 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:05:37,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:05:37,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:05:37,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:05:37,473 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:05:37,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:05:37,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:05:37,475 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:05:37,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:05:37,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:05:37,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:05:37,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:05:37,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:05:37,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:05:37,478 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:05:37,479 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:05:37,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:05:37,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:05:37,480 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:05:37,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:05:37,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:05:37,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:05:37,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:37,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:05:37,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:05:37,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:05:37,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:05:37,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:05:37,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:05:37,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:05:37,484 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:05:37,484 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:05:37,496 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:05:37,496 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_b133b907-f603-4664-9a81-d44e48538c7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2023-11-06 22:05:37,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:05:37,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:05:37,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:05:37,882 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:05:37,882 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:05:37,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-11-06 22:05:40,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:05:41,164 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:05:41,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-11-06 22:05:41,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/data/a8a84d542/80b8ae7a9e5a41d1957193b9930bf35e/FLAGed6a57874 [2023-11-06 22:05:41,199 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/data/a8a84d542/80b8ae7a9e5a41d1957193b9930bf35e [2023-11-06 22:05:41,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:05:41,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:05:41,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:41,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:05:41,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:05:41,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:41,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c04bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41, skipping insertion in model container [2023-11-06 22:05:41,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:41,271 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:05:41,704 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:41,724 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:05:41,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:41,867 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:05:41,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41 WrapperNode [2023-11-06 22:05:41,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:41,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:41,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:05:41,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:05:41,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:41,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:41,966 INFO L138 Inliner]: procedures = 172, calls = 53, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 245 [2023-11-06 22:05:41,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:41,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:05:41,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:05:41,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:05:42,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:05:42,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:05:42,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:05:42,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:05:42,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (1/1) ... [2023-11-06 22:05:42,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:42,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:05:42,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:05:42,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b133b907-f603-4664-9a81-d44e48538c7f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:05:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:05:42,178 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-06 22:05:42,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-06 22:05:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:05:42,179 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:05:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:05:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:05:42,180 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-06 22:05:42,180 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-06 22:05:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:05:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:05:42,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:05:42,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:05:42,183 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 22:05:42,336 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:05:42,338 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:05:42,746 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:05:42,759 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:05:42,759 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-06 22:05:42,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:05:42 BoogieIcfgContainer [2023-11-06 22:05:42,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:05:42,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:05:42,765 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:05:42,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:05:42,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:05:41" (1/3) ... [2023-11-06 22:05:42,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e303428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:05:42, skipping insertion in model container [2023-11-06 22:05:42,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:41" (2/3) ... [2023-11-06 22:05:42,771 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e303428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:05:42, skipping insertion in model container [2023-11-06 22:05:42,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:05:42" (3/3) ... [2023-11-06 22:05:42,773 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2023-11-06 22:05:42,782 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:05:42,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:05:42,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-06 22:05:42,794 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:05:42,929 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 22:05:42,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,255 INFO L124 PetriNetUnfolderBase]: 61/483 cut-off events. [2023-11-06 22:05:43,257 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:05:43,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 483 events. 61/483 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2231 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-06 22:05:43,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,295 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:05:43,316 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,321 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 269 transitions, 558 flow [2023-11-06 22:05:43,465 INFO L124 PetriNetUnfolderBase]: 61/483 cut-off events. [2023-11-06 22:05:43,466 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:05:43,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 483 events. 61/483 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2231 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-06 22:05:43,503 INFO L119 LiptonReduction]: Number of co-enabled transitions 31878 [2023-11-06 22:05:50,623 INFO L134 LiptonReduction]: Checked pairs total: 51432 [2023-11-06 22:05:50,624 INFO L136 LiptonReduction]: Total number of compositions: 239 [2023-11-06 22:05:50,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:05:50,647 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;@640cfa6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:05:50,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-06 22:05:50,652 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:05:50,652 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:05:50,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:05:50,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:50,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:05:50,654 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)] === [2023-11-06 22:05:50,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 33632684, now seen corresponding path program 1 times [2023-11-06 22:05:50,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:50,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387512297] [2023-11-06 22:05:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:05:51,020 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 22:05:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:05:51,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387512297] [2023-11-06 22:05:51,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387512297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:05:51,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:05:51,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:05:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091789551] [2023-11-06 22:05:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:05:51,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:05:51,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:05:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:05:51,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:05:51,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 508 [2023-11-06 22:05:51,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 95 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 22:05:51,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:05:51,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 508 [2023-11-06 22:05:51,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:05:52,741 INFO L124 PetriNetUnfolderBase]: 6674/10965 cut-off events. [2023-11-06 22:05:52,741 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-06 22:05:52,759 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 488. Compared 74880 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. [2023-11-06 22:05:52,829 INFO L140 encePairwiseOnDemand]: 481/508 looper letters, 75 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-06 22:05:52,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 352 flow [2023-11-06 22:05:52,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:05:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:05:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2023-11-06 22:05:52,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.520997375328084 [2023-11-06 22:05:52,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 794 transitions. [2023-11-06 22:05:52,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 794 transitions. [2023-11-06 22:05:52,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:05:52,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 794 transitions. [2023-11-06 22:05:52,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 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 22:05:52,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 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 22:05:52,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 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 22:05:52,884 INFO L175 Difference]: Start difference. First operand has 72 places, 95 transitions, 210 flow. Second operand 3 states and 794 transitions. [2023-11-06 22:05:52,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 352 flow [2023-11-06 22:05:52,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:05:52,896 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 170 flow [2023-11-06 22:05:52,898 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, 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} [2023-11-06 22:05:52,902 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2023-11-06 22:05:52,902 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 170 flow [2023-11-06 22:05:52,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 22:05:52,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:05:52,903 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:05:52,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:05:52,904 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)] === [2023-11-06 22:05:52,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:05:52,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2038643592, now seen corresponding path program 1 times [2023-11-06 22:05:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:05:52,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434181199] [2023-11-06 22:05:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:05:52,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:05:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:05:52,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:05:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:05:53,012 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:05:53,012 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:05:53,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-11-06 22:05:53,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-06 22:05:53,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-06 22:05:53,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-06 22:05:53,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-06 22:05:53,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-06 22:05:53,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-06 22:05:53,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-06 22:05:53,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-06 22:05:53,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-06 22:05:53,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-06 22:05:53,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-06 22:05:53,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-06 22:05:53,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-06 22:05:53,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-06 22:05:53,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-06 22:05:53,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-06 22:05:53,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-06 22:05:53,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-06 22:05:53,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-06 22:05:53,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-06 22:05:53,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-06 22:05:53,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-06 22:05:53,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-06 22:05:53,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-06 22:05:53,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-06 22:05:53,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:05:53,032 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:05:53,036 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:05:53,037 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:05:53,151 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-06 22:05:53,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:53,604 INFO L124 PetriNetUnfolderBase]: 205/1444 cut-off events. [2023-11-06 22:05:53,605 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-06 22:05:53,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1444 events. 205/1444 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9447 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 871. Up to 32 conditions per place. [2023-11-06 22:05:53,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:53,677 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:53,677 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:05:53,677 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:53,683 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:53,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 429 transitions, 902 flow [2023-11-06 22:05:54,149 INFO L124 PetriNetUnfolderBase]: 205/1444 cut-off events. [2023-11-06 22:05:54,150 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-06 22:05:54,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1444 events. 205/1444 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9447 event pairs, 2 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 871. Up to 32 conditions per place. [2023-11-06 22:05:54,321 INFO L119 LiptonReduction]: Number of co-enabled transitions 114268 [2023-11-06 22:06:02,902 INFO L134 LiptonReduction]: Checked pairs total: 227110 [2023-11-06 22:06:02,902 INFO L136 LiptonReduction]: Total number of compositions: 372 [2023-11-06 22:06:02,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:06:02,906 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;@640cfa6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:06:02,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-06 22:06:02,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:06:02,910 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-06 22:06:02,910 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:06:02,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:06:02,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:06:02,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-06 22:06:02,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:06:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1957752419, now seen corresponding path program 1 times [2023-11-06 22:06:02,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:06:02,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6188129] [2023-11-06 22:06:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:06:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:06:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:06:02,965 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 22:06:02,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:06:02,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6188129] [2023-11-06 22:06:02,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6188129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:06:02,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:06:02,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:06:02,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734527890] [2023-11-06 22:06:02,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:06:02,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:06:02,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:06:02,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:06:02,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:06:02,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 801 [2023-11-06 22:06:02,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 166 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 356.3333333333333) internal successors, (1069), 3 states have internal predecessors, (1069), 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 22:06:02,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:06:02,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 801 [2023-11-06 22:06:02,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand