./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ff96f1177b851e0082faef897c2fcf87c2462cab57ba2153c754c5e198aaf06 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:19:23,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:19:23,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:19:23,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:19:23,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:19:23,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:19:23,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:19:23,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:19:23,574 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:19:23,575 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:19:23,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:19:23,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:19:23,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:19:23,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:19:23,578 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:19:23,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:19:23,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:19:23,580 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:19:23,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:19:23,581 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:19:23,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:19:23,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:19:23,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:19:23,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:19:23,584 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:19:23,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:19:23,584 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:19:23,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:19:23,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:19:23,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:19:23,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:19:23,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:23,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:19:23,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:19:23,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:19:23,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:19:23,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:19:23,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:19:23,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:19:23,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:19:23,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:19:23,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:19:23,602 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_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ff96f1177b851e0082faef897c2fcf87c2462cab57ba2153c754c5e198aaf06 [2023-11-29 00:19:23,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:19:23,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:19:23,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:19:23,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:19:23,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:19:23,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2023-11-29 00:19:26,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:19:26,896 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:19:26,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c [2023-11-29 00:19:26,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/data/8a1b124b6/99f5d8049a8642fda2b887667a6cf600/FLAGd9c2ce832 [2023-11-29 00:19:26,917 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/data/8a1b124b6/99f5d8049a8642fda2b887667a6cf600 [2023-11-29 00:19:26,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:19:26,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:19:26,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:26,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:19:26,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:19:26,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:26" (1/1) ... [2023-11-29 00:19:26,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e53240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:26, skipping insertion in model container [2023-11-29 00:19:26,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:19:26" (1/1) ... [2023-11-29 00:19:26,957 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:19:27,153 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2023-11-29 00:19:27,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:27,171 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:19:27,199 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/sv-benchmarks/c/weaver/popl20-threaded-sum-3.wvr.c[2996,3009] [2023-11-29 00:19:27,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:19:27,208 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:19:27,208 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:19:27,216 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:19:27,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27 WrapperNode [2023-11-29 00:19:27,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:19:27,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:27,217 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:19:27,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:19:27,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,261 INFO L138 Inliner]: procedures = 22, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-11-29 00:19:27,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:19:27,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:19:27,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:19:27,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:19:27,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,297 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-29 00:19:27,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:19:27,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:19:27,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:19:27,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:19:27,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (1/1) ... [2023-11-29 00:19:27,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:19:27,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:19:27,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:19:27,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:19:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:19:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 00:19:27,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 00:19:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 00:19:27,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 00:19:27,393 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 00:19:27,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 00:19:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:19:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:19:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:19:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:19:27,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 00:19:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 00:19:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:19:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:19:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:19:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:19:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:19:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:19:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:19:27,398 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 00:19:27,536 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:19:27,539 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:19:27,783 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:19:28,000 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:19:28,000 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 00:19:28,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:19:28 BoogieIcfgContainer [2023-11-29 00:19:28,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:19:28,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:19:28,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:19:28,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:19:28,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:19:26" (1/3) ... [2023-11-29 00:19:28,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a69b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:19:28, skipping insertion in model container [2023-11-29 00:19:28,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:19:27" (2/3) ... [2023-11-29 00:19:28,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a69b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:19:28, skipping insertion in model container [2023-11-29 00:19:28,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:19:28" (3/3) ... [2023-11-29 00:19:28,009 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-threaded-sum-3.wvr.c [2023-11-29 00:19:28,017 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 00:19:28,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:19:28,027 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:19:28,027 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 00:19:28,085 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 00:19:28,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 37 transitions, 95 flow [2023-11-29 00:19:28,164 INFO L124 PetriNetUnfolderBase]: 3/34 cut-off events. [2023-11-29 00:19:28,164 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 00:19:28,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 34 events. 3/34 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-11-29 00:19:28,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 37 transitions, 95 flow [2023-11-29 00:19:28,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 33 transitions, 84 flow [2023-11-29 00:19:28,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:19:28,194 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;@75f10ea4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:19:28,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 00:19:28,213 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 00:19:28,213 INFO L124 PetriNetUnfolderBase]: 3/32 cut-off events. [2023-11-29 00:19:28,213 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 00:19:28,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:28,214 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:19:28,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:19:28,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:28,221 INFO L85 PathProgramCache]: Analyzing trace with hash -286601015, now seen corresponding path program 1 times [2023-11-29 00:19:28,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:28,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77127609] [2023-11-29 00:19:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:28,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:29,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:29,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:29,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77127609] [2023-11-29 00:19:29,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77127609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:29,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:29,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:19:29,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53038438] [2023-11-29 00:19:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:29,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:19:29,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:19:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:19:29,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2023-11-29 00:19:29,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-29 00:19:29,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:29,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2023-11-29 00:19:29,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:29,427 INFO L124 PetriNetUnfolderBase]: 501/868 cut-off events. [2023-11-29 00:19:29,427 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-11-29 00:19:29,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 868 events. 501/868 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4706 event pairs, 80 based on Foata normal form. 54/899 useless extension candidates. Maximal degree in co-relation 1260. Up to 347 conditions per place. [2023-11-29 00:19:29,442 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 48 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2023-11-29 00:19:29,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 64 transitions, 264 flow [2023-11-29 00:19:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:19:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:19:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 125 transitions. [2023-11-29 00:19:29,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6756756756756757 [2023-11-29 00:19:29,456 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 125 transitions. [2023-11-29 00:19:29,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 125 transitions. [2023-11-29 00:19:29,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:29,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 125 transitions. [2023-11-29 00:19:29,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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) [2023-11-29 00:19:29,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-29 00:19:29,468 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-29 00:19:29,470 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 84 flow. Second operand 5 states and 125 transitions. [2023-11-29 00:19:29,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 64 transitions, 264 flow [2023-11-29 00:19:29,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 64 transitions, 244 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-29 00:19:29,477 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 109 flow [2023-11-29 00:19:29,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-11-29 00:19:29,484 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2023-11-29 00:19:29,484 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 109 flow [2023-11-29 00:19:29,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2023-11-29 00:19:29,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:29,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:19:29,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:19:29,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:19:29,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:29,486 INFO L85 PathProgramCache]: Analyzing trace with hash 71846720, now seen corresponding path program 1 times [2023-11-29 00:19:29,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:29,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958982458] [2023-11-29 00:19:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:29,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:19:29,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:29,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958982458] [2023-11-29 00:19:29,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958982458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:19:29,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:19:29,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:19:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188085147] [2023-11-29 00:19:29,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:19:29,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:19:29,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:29,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:19:29,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:19:29,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2023-11-29 00:19:29,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 00:19:29,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:29,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2023-11-29 00:19:29,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:19:30,171 INFO L124 PetriNetUnfolderBase]: 991/1592 cut-off events. [2023-11-29 00:19:30,171 INFO L125 PetriNetUnfolderBase]: For 738/803 co-relation queries the response was YES. [2023-11-29 00:19:30,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3614 conditions, 1592 events. 991/1592 cut-off events. For 738/803 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 8061 event pairs, 33 based on Foata normal form. 131/1678 useless extension candidates. Maximal degree in co-relation 1863. Up to 934 conditions per place. [2023-11-29 00:19:30,191 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 58 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2023-11-29 00:19:30,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 77 transitions, 368 flow [2023-11-29 00:19:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:19:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 00:19:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2023-11-29 00:19:30,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6918918918918919 [2023-11-29 00:19:30,194 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 128 transitions. [2023-11-29 00:19:30,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 128 transitions. [2023-11-29 00:19:30,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:19:30,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 128 transitions. [2023-11-29 00:19:30,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2023-11-29 00:19:30,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-29 00:19:30,197 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2023-11-29 00:19:30,197 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 109 flow. Second operand 5 states and 128 transitions. [2023-11-29 00:19:30,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 77 transitions, 368 flow [2023-11-29 00:19:30,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 77 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:19:30,202 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 151 flow [2023-11-29 00:19:30,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2023-11-29 00:19:30,203 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 7 predicate places. [2023-11-29 00:19:30,204 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 151 flow [2023-11-29 00:19:30,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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) [2023-11-29 00:19:30,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:19:30,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:19:30,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:19:30,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:19:30,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:19:30,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1038582740, now seen corresponding path program 1 times [2023-11-29 00:19:30,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:19:30,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634870253] [2023-11-29 00:19:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:19:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:33,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:33,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:19:33,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634870253] [2023-11-29 00:19:33,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634870253] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:19:33,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180197488] [2023-11-29 00:19:33,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:19:33,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:19:33,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:19:33,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:19:33,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:19:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:19:33,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:19:33,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:19:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:35,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:19:37,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:19:37,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180197488] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:19:37,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:19:37,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 25 [2023-11-29 00:19:37,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008510120] [2023-11-29 00:19:37,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:19:37,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:19:37,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:19:37,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:19:37,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:19:38,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 37 [2023-11-29 00:19:38,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 151 flow. Second operand has 26 states, 26 states have (on average 12.923076923076923) internal successors, (336), 26 states have internal predecessors, (336), 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) [2023-11-29 00:19:38,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:19:38,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 37 [2023-11-29 00:19:38,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:06,440 INFO L124 PetriNetUnfolderBase]: 11022/16720 cut-off events. [2023-11-29 00:20:06,440 INFO L125 PetriNetUnfolderBase]: For 16390/16996 co-relation queries the response was YES. [2023-11-29 00:20:06,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47303 conditions, 16720 events. 11022/16720 cut-off events. For 16390/16996 co-relation queries the response was YES. Maximal size of possible extension queue 909. Compared 110692 event pairs, 476 based on Foata normal form. 337/15610 useless extension candidates. Maximal degree in co-relation 22509. Up to 4341 conditions per place. [2023-11-29 00:20:06,574 INFO L140 encePairwiseOnDemand]: 24/37 looper letters, 448 selfloop transitions, 286 changer transitions 89/832 dead transitions. [2023-11-29 00:20:06,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 832 transitions, 4645 flow [2023-11-29 00:20:06,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-11-29 00:20:06,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2023-11-29 00:20:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 1591 transitions. [2023-11-29 00:20:06,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2023-11-29 00:20:06,585 INFO L72 ComplementDD]: Start complementDD. Operand 81 states and 1591 transitions. [2023-11-29 00:20:06,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 1591 transitions. [2023-11-29 00:20:06,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:06,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 81 states and 1591 transitions. [2023-11-29 00:20:06,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 82 states, 81 states have (on average 19.641975308641975) internal successors, (1591), 81 states have internal predecessors, (1591), 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) [2023-11-29 00:20:06,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 82 states, 82 states have (on average 37.0) internal successors, (3034), 82 states have internal predecessors, (3034), 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) [2023-11-29 00:20:06,603 INFO L81 ComplementDD]: Finished complementDD. Result has 82 states, 82 states have (on average 37.0) internal successors, (3034), 82 states have internal predecessors, (3034), 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) [2023-11-29 00:20:06,603 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 151 flow. Second operand 81 states and 1591 transitions. [2023-11-29 00:20:06,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 832 transitions, 4645 flow [2023-11-29 00:20:06,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 832 transitions, 4620 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 00:20:06,635 INFO L231 Difference]: Finished difference. Result has 152 places, 371 transitions, 2576 flow [2023-11-29 00:20:06,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=81, PETRI_FLOW=2576, PETRI_PLACES=152, PETRI_TRANSITIONS=371} [2023-11-29 00:20:06,636 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 112 predicate places. [2023-11-29 00:20:06,637 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 371 transitions, 2576 flow [2023-11-29 00:20:06,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.923076923076923) internal successors, (336), 26 states have internal predecessors, (336), 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) [2023-11-29 00:20:06,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:06,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:06,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:20:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 00:20:06,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:20:06,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash 875896726, now seen corresponding path program 2 times [2023-11-29 00:20:06,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:06,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471166622] [2023-11-29 00:20:06,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:07,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471166622] [2023-11-29 00:20:07,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471166622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:20:07,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:20:07,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:20:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157693017] [2023-11-29 00:20:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:20:07,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:20:07,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:20:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:20:07,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2023-11-29 00:20:07,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 371 transitions, 2576 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-11-29 00:20:07,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:07,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2023-11-29 00:20:07,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:20:09,759 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post3, thread2Thread1of1ForFork2_#t~post4, ~t~0, ~s~0][545], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 59#(and (= ~s~0 ~S~0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0)), Black: 62#(and (= ~s~0 ~S~0) (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 278#(and (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (mod ~m~0 4294967296)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)))), Black: 370#(and (<= (mod (+ ~T~0 1) 4294967296) 0) (= ~m~0 1) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (<= (mod (+ 4294967295 ~S~0) 4294967296) 0) (<= (mod (+ 4294967295 ~U~0) 4294967296) 0) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), Black: 292#(and (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (= (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (mod ~m~0 4294967296)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)))), Black: 376#(and (<= (mod (+ ~T~0 1) 4294967296) 0) (= ~m~0 1) (<= (mod (+ 4294967295 ~S~0) 4294967296) 0) (<= (mod (+ 4294967295 ~U~0) 4294967296) 0) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), Black: 276#(and (or (< 0 (mod ~t~0 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296)))))) (< 0 (mod ~u~0 4294967296))) (or (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296)))))))), Black: 290#(and (= (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (mod ~m~0 4294967296)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)))), Black: 118#(and (<= 1 (mod ~T~0 4294967296)) (= (+ ~u~0 1) ~U~0) (= (+ ~T~0 1) ~t~0) (= ~s~0 ~S~0) (= ~m~0 0) (<= 1 (mod ~U~0 4294967296)) (<= 1 (mod ~S~0 4294967296))), Black: 348#(and (= (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (mod ~m~0 4294967296)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (= (mod thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)))), Black: 398#(and (<= (mod (+ ~T~0 1) 4294967296) 0) (= ~m~0 1) (<= (div ~s~0 4294967296) (div ~S~0 4294967296)) (<= (mod (+ 4294967295 ~S~0) 4294967296) 0) (<= (mod (+ 4294967295 ~U~0) 4294967296) 0) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (= (mod thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (or (< (div (+ ~U~0 ~T~0 ~S~0) 4294967296) (+ (div ~S~0 4294967296) (div ~t~0 4294967296) (div ~U~0 4294967296) 1)) (< (+ ~U~0 ~T~0 ~S~0) (+ (* (div ~U~0 4294967296) 4294967296) ~t~0 ~s~0 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), Black: 67#true, Black: 245#(or (= (mod thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296))))))), 22#L69true, Black: 356#(and (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (= (mod (+ ~U~0 ~T~0 ~S~0) 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thread1Thread1of1ForFork1_~cond~0 0)), 5#L91true, Black: 49#(and (= ~u~0 ~U~0) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), Black: 50#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (<= 1 thread2Thread1of1ForFork2_~cond~1)), Black: 52#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (= ~u~0 ~U~0) (<= 1 thread2Thread1of1ForFork2_~cond~1) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), 35#L112-4true, 11#thread2EXITtrue]) [2023-11-29 00:20:09,761 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-29 00:20:09,761 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,761 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-29 00:20:09,761 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-29 00:20:09,809 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post3, thread2Thread1of1ForFork2_#t~post4, ~t~0, ~s~0][545], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 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(* (div ~U~0 4294967296) 4294967296) 1) ~U~0))]) [2023-11-29 00:20:09,810 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-29 00:20:09,810 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-29 00:20:09,810 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,810 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,811 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L72-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork2_#res.offset_1| 0) (= |v_thread2Thread1of1ForFork2_#res.base_1| 0) (= (mod v_thread2Thread1of1ForFork2_~cond~1_5 256) 0)) InVars {thread2Thread1of1ForFork2_~cond~1=v_thread2Thread1of1ForFork2_~cond~1_5} OutVars{thread2Thread1of1ForFork2_#res.base=|v_thread2Thread1of1ForFork2_#res.base_1|, 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~u~0 ~U~0) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), Black: 50#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (<= 1 thread2Thread1of1ForFork2_~cond~1)), Black: 52#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (= ~u~0 ~U~0) (<= 1 thread2Thread1of1ForFork2_~cond~1) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), 11#thread2EXITtrue]) [2023-11-29 00:20:09,811 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-29 00:20:09,811 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,811 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-29 00:20:09,811 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-29 00:20:09,813 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post3, thread2Thread1of1ForFork2_#t~post4, ~t~0, ~s~0][339], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 59#(and (= ~s~0 ~S~0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 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olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,813 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,813 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-29 00:20:09,813 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L72-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork2_#res.offset_1| 0) (= |v_thread2Thread1of1ForFork2_#res.base_1| 0) (= (mod v_thread2Thread1of1ForFork2_~cond~1_5 256) 0)) InVars {thread2Thread1of1ForFork2_~cond~1=v_thread2Thread1of1ForFork2_~cond~1_5} OutVars{thread2Thread1of1ForFork2_#res.base=|v_thread2Thread1of1ForFork2_#res.base_1|, thread2Thread1of1ForFork2_~cond~1=v_thread2Thread1of1ForFork2_~cond~1_5, thread2Thread1of1ForFork2_#res.offset=|v_thread2Thread1of1ForFork2_#res.offset_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#res.base, 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4294967296) 4294967296) 1) ~U~0)), 35#L112-4true, 11#thread2EXITtrue]) [2023-11-29 00:20:09,813 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-29 00:20:09,814 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-29 00:20:09,814 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-29 00:20:09,814 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,815 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post3, thread2Thread1of1ForFork2_#t~post4, ~t~0, ~s~0][549], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 59#(and (= ~s~0 ~S~0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0)), Black: 62#(and (= ~s~0 ~S~0) (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 278#(and (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 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00:20:09,816 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,817 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L72-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork2_#res.offset_1| 0) (= |v_thread2Thread1of1ForFork2_#res.base_1| 0) (= (mod v_thread2Thread1of1ForFork2_~cond~1_5 256) 0)) InVars {thread2Thread1of1ForFork2_~cond~1=v_thread2Thread1of1ForFork2_~cond~1_5} OutVars{thread2Thread1of1ForFork2_#res.base=|v_thread2Thread1of1ForFork2_#res.base_1|, thread2Thread1of1ForFork2_~cond~1=v_thread2Thread1of1ForFork2_~cond~1_5, thread2Thread1of1ForFork2_#res.offset=|v_thread2Thread1of1ForFork2_#res.offset_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#res.base, thread2Thread1of1ForFork2_#res.offset][87], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 59#(and (= ~s~0 ~S~0) (<= (+ (* (div ~S~0 4294967296) 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olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-29 00:20:09,817 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,818 INFO L297 olderBase$Statistics]: existing Event has 24 ancestors and is cut-off event [2023-11-29 00:20:09,818 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-29 00:20:09,852 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#t~post3, thread2Thread1of1ForFork2_#t~post4, ~t~0, ~s~0][339], [60#(and (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 59#(and (= ~s~0 ~S~0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0)), Black: 62#(and (= ~s~0 ~S~0) (<= (div thread1Thread1of1ForFork1_~cond~0 256) 0) (<= (+ (* (div ~S~0 4294967296) 4294967296) 1) ~S~0) (<= 1 thread1Thread1of1ForFork1_~cond~0)), Black: 278#(and (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 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thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), 435#(and (<= (+ (* (div ~u~0 4294967296) 4294967296) 1) ~u~0) (= thread3Thread1of1ForFork0_~cond~2 1)), Black: 49#(and (= ~u~0 ~U~0) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), Black: 50#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (<= 1 thread2Thread1of1ForFork2_~cond~1)), Black: 52#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (= ~u~0 ~U~0) (<= 1 thread2Thread1of1ForFork2_~cond~1) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), 11#thread2EXITtrue]) [2023-11-29 00:20:09,854 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-29 00:20:09,854 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,854 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-29 00:20:09,854 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,855 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([327] L64-->L69: Formula: (let ((.cse0 (mod v_~t~0_76 4294967296))) (or (and (= v_~t~0_76 v_~t~0_75) (= |v_thread2Thread1of1ForFork2_#t~post4_2| |v_thread2Thread1of1ForFork2_#t~post4_1|) (<= .cse0 0) (= |v_thread2Thread1of1ForFork2_#t~post3_2| |v_thread2Thread1of1ForFork2_#t~post3_1|) (= v_~s~0_77 v_~s~0_78)) (and (= v_~s~0_77 (+ v_~s~0_78 1)) (< 0 .cse0) (= v_~t~0_76 (+ v_~t~0_75 1))))) InVars {thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_1|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_1|, ~t~0=v_~t~0_76, ~s~0=v_~s~0_78} OutVars{thread2Thread1of1ForFork2_#t~post3=|v_thread2Thread1of1ForFork2_#t~post3_2|, thread2Thread1of1ForFork2_#t~post4=|v_thread2Thread1of1ForFork2_#t~post4_2|, ~t~0=v_~t~0_75, ~s~0=v_~s~0_77} 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thread2Thread1of1ForFork2_~cond~1 256) 0) (<= 1 thread2Thread1of1ForFork2_~cond~1)), Black: 52#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (= ~u~0 ~U~0) (<= 1 thread2Thread1of1ForFork2_~cond~1) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), 13#thread3EXITtrue]) [2023-11-29 00:20:09,856 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-29 00:20:09,856 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-29 00:20:09,856 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-29 00:20:09,856 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-29 00:20:09,856 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L72-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork2_#res.offset_1| 0) (= |v_thread2Thread1of1ForFork2_#res.base_1| 0) (= (mod 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thread3Thread1of1ForFork0_~cond~2 0)) (and (<= (+ (* (div ~u~0 4294967296) 4294967296) 1) ~u~0) (= thread3Thread1of1ForFork0_~cond~2 1))), Black: 241#(or (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296))))))), Black: 206#(or (< 0 (mod ~t~0 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296)))))) (< 0 (mod ~u~0 4294967296))), Black: 384#(and (<= (mod (+ ~T~0 1) 4294967296) 0) (= ~m~0 1) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (<= (mod (+ 4294967295 ~S~0) 4294967296) 0) (<= (mod (+ 4294967295 ~U~0) 4294967296) 0) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), 16#L50true, Black: 340#(and (or (< 0 (mod ~t~0 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296)))))) (< 0 (mod ~u~0 4294967296))) (or (= (mod thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296)) (and (or (< 0 (mod ~s~0 4294967296)) (= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* 4294967296 (div ~m~0 4294967296))) ~m~0)) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (and (<= (+ (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 1) 4294967296) 4294967296)) (+ ~m~0 1)) (<= ~m~0 (+ 4294967295 (mod (+ ~U~0 ~T~0 ~S~0) 4294967296) (* (div (+ ~m~0 (- 4294967295)) 4294967296) 4294967296)))))))), Black: 388#(and (<= (mod (+ ~T~0 1) 4294967296) 0) (= ~m~0 1) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (< 0 (mod ~t~0 4294967296)) (< 0 (mod ~u~0 4294967296))) (<= (mod (+ 4294967295 ~S~0) 4294967296) 0) (<= (mod (+ 4294967295 ~U~0) 4294967296) 0) (or (not (= (mod (+ (* 4294967295 ~s~0) 1) 4294967296) 0)) (= (mod thread3Thread1of1ForFork0_~cond~2 256) 0) (< 0 (mod (+ ~t~0 1) 4294967296)) (< 0 (mod (+ 4294967295 ~u~0) 4294967296))) (= thread1Thread1of1ForFork1_~cond~0 0)), Black: 49#(and (= ~u~0 ~U~0) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), Black: 50#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (<= 1 thread2Thread1of1ForFork2_~cond~1)), Black: 52#(and (<= (div thread2Thread1of1ForFork2_~cond~1 256) 0) (= ~u~0 ~U~0) (<= 1 thread2Thread1of1ForFork2_~cond~1) (<= (+ (* (div ~U~0 4294967296) 4294967296) 1) ~U~0)), 13#thread3EXITtrue, 11#thread2EXITtrue]) [2023-11-29 00:20:09,857 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-29 00:20:09,857 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-29 00:20:09,857 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-29 00:20:09,857 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-29 00:20:09,924 INFO L124 PetriNetUnfolderBase]: 12712/19184 cut-off events. [2023-11-29 00:20:09,924 INFO L125 PetriNetUnfolderBase]: For 51222/53516 co-relation queries the response was YES. [2023-11-29 00:20:09,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71721 conditions, 19184 events. 12712/19184 cut-off events. For 51222/53516 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 129688 event pairs, 458 based on Foata normal form. 1115/20115 useless extension candidates. Maximal degree in co-relation 71549. Up to 5677 conditions per place. [2023-11-29 00:20:10,110 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 712 selfloop transitions, 143 changer transitions 0/871 dead transitions. [2023-11-29 00:20:10,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 871 transitions, 7882 flow [2023-11-29 00:20:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:20:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 00:20:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 186 transitions. [2023-11-29 00:20:10,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5585585585585585 [2023-11-29 00:20:10,113 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 186 transitions. [2023-11-29 00:20:10,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 186 transitions. [2023-11-29 00:20:10,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:20:10,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 186 transitions. [2023-11-29 00:20:10,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 20.666666666666668) internal successors, (186), 9 states have internal predecessors, (186), 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) [2023-11-29 00:20:10,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 37.0) internal successors, (370), 10 states have internal predecessors, (370), 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) [2023-11-29 00:20:10,117 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 37.0) internal successors, (370), 10 states have internal predecessors, (370), 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) [2023-11-29 00:20:10,117 INFO L175 Difference]: Start difference. First operand has 152 places, 371 transitions, 2576 flow. Second operand 9 states and 186 transitions. [2023-11-29 00:20:10,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 871 transitions, 7882 flow [2023-11-29 00:20:10,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 871 transitions, 6878 flow, removed 502 selfloop flow, removed 0 redundant places. [2023-11-29 00:20:10,605 INFO L231 Difference]: Finished difference. Result has 166 places, 442 transitions, 3489 flow [2023-11-29 00:20:10,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=2167, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3489, PETRI_PLACES=166, PETRI_TRANSITIONS=442} [2023-11-29 00:20:10,606 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 126 predicate places. [2023-11-29 00:20:10,607 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 442 transitions, 3489 flow [2023-11-29 00:20:10,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2023-11-29 00:20:10,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:20:10,607 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:20:10,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:20:10,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:20:10,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:20:10,608 INFO L85 PathProgramCache]: Analyzing trace with hash -871143126, now seen corresponding path program 3 times [2023-11-29 00:20:10,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:20:10,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201501878] [2023-11-29 00:20:10,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:20:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:20:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:20:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:20:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201501878] [2023-11-29 00:20:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201501878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:20:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501221446] [2023-11-29 00:20:12,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:20:12,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:20:12,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:20:12,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:20:12,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:20:13,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 00:20:13,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:20:13,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:20:13,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:20:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:15,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:20:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:20:25,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501221446] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:20:25,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:20:25,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2023-11-29 00:20:25,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831685790] [2023-11-29 00:20:25,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:20:25,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:20:25,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:20:25,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:20:25,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:20:31,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:20:31,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2023-11-29 00:20:31,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 442 transitions, 3489 flow. Second operand has 24 states, 24 states have (on average 15.625) internal successors, (375), 24 states have internal predecessors, (375), 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) [2023-11-29 00:20:31,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:20:31,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2023-11-29 00:20:31,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:21:05,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:30,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:21:51,444 WARN L293 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 146 DAG size of output: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 00:22:14,409 INFO L124 PetriNetUnfolderBase]: 24062/39471 cut-off events. [2023-11-29 00:22:14,409 INFO L125 PetriNetUnfolderBase]: For 135162/138336 co-relation queries the response was YES. [2023-11-29 00:22:14,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162411 conditions, 39471 events. 24062/39471 cut-off events. For 135162/138336 co-relation queries the response was YES. Maximal size of possible extension queue 2232. Compared 333032 event pairs, 940 based on Foata normal form. 1621/40600 useless extension candidates. Maximal degree in co-relation 162107. Up to 6564 conditions per place. [2023-11-29 00:22:14,856 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 779 selfloop transitions, 925 changer transitions 49/1774 dead transitions. [2023-11-29 00:22:14,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1774 transitions, 16489 flow [2023-11-29 00:22:14,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-11-29 00:22:14,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2023-11-29 00:22:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 1414 transitions. [2023-11-29 00:22:14,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6066066066066066 [2023-11-29 00:22:14,864 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 1414 transitions. [2023-11-29 00:22:14,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 1414 transitions. [2023-11-29 00:22:14,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:22:14,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 1414 transitions. [2023-11-29 00:22:14,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 22.444444444444443) internal successors, (1414), 63 states have internal predecessors, (1414), 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) [2023-11-29 00:22:14,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 37.0) internal successors, (2368), 64 states have internal predecessors, (2368), 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) [2023-11-29 00:22:14,880 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 37.0) internal successors, (2368), 64 states have internal predecessors, (2368), 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) [2023-11-29 00:22:14,880 INFO L175 Difference]: Start difference. First operand has 166 places, 442 transitions, 3489 flow. Second operand 63 states and 1414 transitions. [2023-11-29 00:22:14,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1774 transitions, 16489 flow [2023-11-29 00:22:15,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 1774 transitions, 16477 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-29 00:22:15,870 INFO L231 Difference]: Finished difference. Result has 265 places, 1237 transitions, 13505 flow [2023-11-29 00:22:15,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=3477, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=13505, PETRI_PLACES=265, PETRI_TRANSITIONS=1237} [2023-11-29 00:22:15,872 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 225 predicate places. [2023-11-29 00:22:15,872 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 1237 transitions, 13505 flow [2023-11-29 00:22:15,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.625) internal successors, (375), 24 states have internal predecessors, (375), 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) [2023-11-29 00:22:15,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:22:15,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:22:15,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:22:16,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:16,074 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:22:16,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:16,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1918699612, now seen corresponding path program 1 times [2023-11-29 00:22:16,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:16,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236877307] [2023-11-29 00:22:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:16,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:20,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:20,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:20,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236877307] [2023-11-29 00:22:20,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236877307] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:22:20,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22888183] [2023-11-29 00:22:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:20,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:20,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:20,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:20,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:22:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:20,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:22:20,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:22,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:26,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:22:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22888183] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:22:26,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:22:26,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 32 [2023-11-29 00:22:26,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640143952] [2023-11-29 00:22:26,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:26,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 00:22:26,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:26,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 00:22:26,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 00:22:26,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 37 [2023-11-29 00:22:26,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 1237 transitions, 13505 flow. Second operand has 33 states, 33 states have (on average 9.424242424242424) internal successors, (311), 33 states have internal predecessors, (311), 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) [2023-11-29 00:22:26,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:22:26,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 37 [2023-11-29 00:22:26,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:22:30,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:22:51,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:25:26,798 INFO L124 PetriNetUnfolderBase]: 136970/197590 cut-off events. [2023-11-29 00:25:26,798 INFO L125 PetriNetUnfolderBase]: For 1383874/1383874 co-relation queries the response was YES. [2023-11-29 00:25:28,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959758 conditions, 197590 events. 136970/197590 cut-off events. For 1383874/1383874 co-relation queries the response was YES. Maximal size of possible extension queue 6204. Compared 1539980 event pairs, 6648 based on Foata normal form. 228/197817 useless extension candidates. Maximal degree in co-relation 958873. Up to 32073 conditions per place. [2023-11-29 00:25:29,534 INFO L140 encePairwiseOnDemand]: 19/37 looper letters, 1699 selfloop transitions, 2141 changer transitions 1440/5284 dead transitions. [2023-11-29 00:25:29,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 5284 transitions, 62806 flow [2023-11-29 00:25:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2023-11-29 00:25:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2023-11-29 00:25:29,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 2708 transitions. [2023-11-29 00:25:29,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49452154857560265 [2023-11-29 00:25:29,541 INFO L72 ComplementDD]: Start complementDD. Operand 148 states and 2708 transitions. [2023-11-29 00:25:29,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 2708 transitions. [2023-11-29 00:25:29,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:25:29,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 148 states and 2708 transitions. [2023-11-29 00:25:29,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 149 states, 148 states have (on average 18.2972972972973) internal successors, (2708), 148 states have internal predecessors, (2708), 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) [2023-11-29 00:25:29,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 149 states, 149 states have (on average 37.0) internal successors, (5513), 149 states have internal predecessors, (5513), 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) [2023-11-29 00:25:29,562 INFO L81 ComplementDD]: Finished complementDD. Result has 149 states, 149 states have (on average 37.0) internal successors, (5513), 149 states have internal predecessors, (5513), 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) [2023-11-29 00:25:29,562 INFO L175 Difference]: Start difference. First operand has 265 places, 1237 transitions, 13505 flow. Second operand 148 states and 2708 transitions. [2023-11-29 00:25:29,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 5284 transitions, 62806 flow [2023-11-29 00:26:51,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 5284 transitions, 60560 flow, removed 1107 selfloop flow, removed 4 redundant places. [2023-11-29 00:26:51,421 INFO L231 Difference]: Finished difference. Result has 511 places, 2658 transitions, 37535 flow [2023-11-29 00:26:51,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=12769, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=626, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=148, PETRI_FLOW=37535, PETRI_PLACES=511, PETRI_TRANSITIONS=2658} [2023-11-29 00:26:51,423 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, 471 predicate places. [2023-11-29 00:26:51,423 INFO L495 AbstractCegarLoop]: Abstraction has has 511 places, 2658 transitions, 37535 flow [2023-11-29 00:26:51,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.424242424242424) internal successors, (311), 33 states have internal predecessors, (311), 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) [2023-11-29 00:26:51,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 00:26:51,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:26:51,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:26:51,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:51,624 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-29 00:26:51,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:26:51,625 INFO L85 PathProgramCache]: Analyzing trace with hash -925594854, now seen corresponding path program 2 times [2023-11-29 00:26:51,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:26:51,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054541839] [2023-11-29 00:26:51,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:26:51,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:26:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:26:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:26:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:26:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054541839] [2023-11-29 00:26:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054541839] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:26:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120802755] [2023-11-29 00:26:54,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:26:54,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:26:54,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:26:54,309 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:26:54,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa578db1-797d-4cd4-847d-639044e89824/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:26:54,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:26:54,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:26:54,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:26:54,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:26:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:26:56,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:26:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:26:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120802755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:26:58,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:26:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2023-11-29 00:26:58,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782588372] [2023-11-29 00:26:58,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:26:58,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 00:26:58,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:26:58,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 00:26:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=611, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:26:58,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2023-11-29 00:26:58,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 2658 transitions, 37535 flow. Second operand has 28 states, 28 states have (on average 10.714285714285714) internal successors, (300), 28 states have internal predecessors, (300), 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) [2023-11-29 00:26:58,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 00:26:58,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2023-11-29 00:26:58,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 00:27:22,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-29 00:32:03,183 INFO L124 PetriNetUnfolderBase]: 124906/183656 cut-off events. [2023-11-29 00:32:03,183 INFO L125 PetriNetUnfolderBase]: For 8311811/8312227 co-relation queries the response was YES. [2023-11-29 00:32:07,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691480 conditions, 183656 events. 124906/183656 cut-off events. For 8311811/8312227 co-relation queries the response was YES. Maximal size of possible extension queue 6876. Compared 1494952 event pairs, 6202 based on Foata normal form. 475/183196 useless extension candidates. Maximal degree in co-relation 1689054. Up to 45046 conditions per place. [2023-11-29 00:32:08,893 INFO L140 encePairwiseOnDemand]: 22/37 looper letters, 2604 selfloop transitions, 3825 changer transitions 594/7030 dead transitions. [2023-11-29 00:32:08,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 7030 transitions, 117804 flow [2023-11-29 00:32:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2023-11-29 00:32:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2023-11-29 00:32:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 2637 transitions. [2023-11-29 00:32:08,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45686070686070684 [2023-11-29 00:32:08,902 INFO L72 ComplementDD]: Start complementDD. Operand 156 states and 2637 transitions. [2023-11-29 00:32:08,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 156 states and 2637 transitions. [2023-11-29 00:32:08,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 00:32:08,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 156 states and 2637 transitions. [2023-11-29 00:32:08,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 157 states, 156 states have (on average 16.903846153846153) internal successors, (2637), 156 states have internal predecessors, (2637), 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) [2023-11-29 00:32:08,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 157 states, 157 states have (on average 37.0) internal successors, (5809), 157 states have internal predecessors, (5809), 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) [2023-11-29 00:32:08,923 INFO L81 ComplementDD]: Finished complementDD. Result has 157 states, 157 states have (on average 37.0) internal successors, (5809), 157 states have internal predecessors, (5809), 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) [2023-11-29 00:32:08,923 INFO L175 Difference]: Start difference. First operand has 511 places, 2658 transitions, 37535 flow. Second operand 156 states and 2637 transitions. [2023-11-29 00:32:08,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 7030 transitions, 117804 flow