./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl --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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:54,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:54,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:15:54,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:54,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:54,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:54,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:54,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:54,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:54,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:54,154 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:54,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:54,155 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:54,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:54,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:54,157 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:54,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:54,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:54,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:54,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:54,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:54,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:54,161 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:54,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:54,162 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:54,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:54,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:54,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:54,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:54,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:54,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:54,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:54,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:54,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:54,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:54,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:54,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:54,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:54,166 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:54,167 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_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2023-11-12 02:15:54,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:54,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:54,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:54,470 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:54,471 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:54,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-12 02:15:57,638 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:57,904 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:57,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2023-11-12 02:15:57,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/data/1994b0ed0/28c6aac3f68c4f11881c5a42158049ea/FLAG423ff05c2 [2023-11-12 02:15:57,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/data/1994b0ed0/28c6aac3f68c4f11881c5a42158049ea [2023-11-12 02:15:57,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:57,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:57,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:57,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:57,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:57,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:57" (1/1) ... [2023-11-12 02:15:57,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754be07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:57, skipping insertion in model container [2023-11-12 02:15:57,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:57" (1/1) ... [2023-11-12 02:15:57,983 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:58,258 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_31b6a158-0f29-40a4-b150-d1653436e9ff/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4800,4813] [2023-11-12 02:15:58,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:58,283 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:58,337 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_31b6a158-0f29-40a4-b150-d1653436e9ff/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4800,4813] [2023-11-12 02:15:58,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:58,356 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:58,357 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:58,364 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:58,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58 WrapperNode [2023-11-12 02:15:58,366 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:58,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:58,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:58,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:58,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,399 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,435 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 270 [2023-11-12 02:15:58,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:58,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:58,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:58,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:58,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:58,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:58,489 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:58,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:58,490 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (1/1) ... [2023-11-12 02:15:58,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:58,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:58,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:58,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31b6a158-0f29-40a4-b150-d1653436e9ff/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:15:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:15:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:15:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:15:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:15:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-12 02:15:58,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-12 02:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-12 02:15:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-12 02:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:15:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:58,586 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:15:58,710 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:58,712 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:59,171 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:59,246 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:59,247 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:15:59,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:59 BoogieIcfgContainer [2023-11-12 02:15:59,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:59,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:59,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:59,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:59,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:57" (1/3) ... [2023-11-12 02:15:59,258 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69346ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:59, skipping insertion in model container [2023-11-12 02:15:59,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:58" (2/3) ... [2023-11-12 02:15:59,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69346ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:59, skipping insertion in model container [2023-11-12 02:15:59,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:59" (3/3) ... [2023-11-12 02:15:59,260 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-11-12 02:15:59,269 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:15:59,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:59,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:59,282 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:15:59,534 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-11-12 02:15:59,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 260 places, 249 transitions, 564 flow [2023-11-12 02:15:59,710 INFO L124 PetriNetUnfolderBase]: 8/221 cut-off events. [2023-11-12 02:15:59,711 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:15:59,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 8/221 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 260 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2023-11-12 02:15:59,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 260 places, 249 transitions, 564 flow [2023-11-12 02:15:59,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 212 transitions, 472 flow [2023-11-12 02:15:59,742 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:15:59,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 212 transitions, 472 flow [2023-11-12 02:15:59,760 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 212 transitions, 472 flow [2023-11-12 02:15:59,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 212 transitions, 472 flow [2023-11-12 02:15:59,874 INFO L124 PetriNetUnfolderBase]: 8/212 cut-off events. [2023-11-12 02:15:59,874 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:15:59,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 212 events. 8/212 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 258 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 190. Up to 3 conditions per place. [2023-11-12 02:15:59,888 INFO L119 LiptonReduction]: Number of co-enabled transitions 8600 [2023-11-12 02:16:05,460 INFO L134 LiptonReduction]: Checked pairs total: 52354 [2023-11-12 02:16:05,461 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-11-12 02:16:05,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:16:05,503 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;@48bedbba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:16:05,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-12 02:16:05,523 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:16:05,523 INFO L124 PetriNetUnfolderBase]: 4/74 cut-off events. [2023-11-12 02:16:05,523 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:16:05,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:05,524 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, 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, 1, 1, 1, 1, 1] [2023-11-12 02:16:05,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-12 02:16:05,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:05,531 INFO L85 PathProgramCache]: Analyzing trace with hash -245079987, now seen corresponding path program 1 times [2023-11-12 02:16:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:05,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701835029] [2023-11-12 02:16:05,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:05,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:07,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:07,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:07,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701835029] [2023-11-12 02:16:07,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701835029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:07,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:07,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-11-12 02:16:07,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024225260] [2023-11-12 02:16:07,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:07,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-12 02:16:07,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:07,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-12 02:16:07,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:16:08,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 404 [2023-11-12 02:16:08,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 198 flow. Second operand has 19 states, 19 states have (on average 191.68421052631578) internal successors, (3642), 19 states have internal predecessors, (3642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:08,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:08,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 404 [2023-11-12 02:16:08,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:24,397 INFO L124 PetriNetUnfolderBase]: 81506/111204 cut-off events. [2023-11-12 02:16:24,397 INFO L125 PetriNetUnfolderBase]: For 11552/11746 co-relation queries the response was YES. [2023-11-12 02:16:24,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228673 conditions, 111204 events. 81506/111204 cut-off events. For 11552/11746 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 700305 event pairs, 27465 based on Foata normal form. 1/107753 useless extension candidates. Maximal degree in co-relation 227232. Up to 87940 conditions per place. [2023-11-12 02:16:25,219 INFO L140 encePairwiseOnDemand]: 385/404 looper letters, 310 selfloop transitions, 86 changer transitions 55/471 dead transitions. [2023-11-12 02:16:25,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 471 transitions, 2153 flow [2023-11-12 02:16:25,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-12 02:16:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-11-12 02:16:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 5744 transitions. [2023-11-12 02:16:25,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5077793493635078 [2023-11-12 02:16:25,263 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 5744 transitions. [2023-11-12 02:16:25,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 5744 transitions. [2023-11-12 02:16:25,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:25,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 5744 transitions. [2023-11-12 02:16:25,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 205.14285714285714) internal successors, (5744), 28 states have internal predecessors, (5744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 404.0) internal successors, (11716), 29 states have internal predecessors, (11716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,342 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 404.0) internal successors, (11716), 29 states have internal predecessors, (11716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:25,345 INFO L175 Difference]: Start difference. First operand has 90 places, 75 transitions, 198 flow. Second operand 28 states and 5744 transitions. [2023-11-12 02:16:25,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 471 transitions, 2153 flow [2023-11-12 02:16:26,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 471 transitions, 1947 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-12 02:16:26,082 INFO L231 Difference]: Finished difference. Result has 121 places, 160 transitions, 646 flow [2023-11-12 02:16:26,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=646, PETRI_PLACES=121, PETRI_TRANSITIONS=160} [2023-11-12 02:16:26,088 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 31 predicate places. [2023-11-12 02:16:26,089 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 160 transitions, 646 flow [2023-11-12 02:16:26,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 191.68421052631578) internal successors, (3642), 19 states have internal predecessors, (3642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:26,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:26,091 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, 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, 1, 1, 1, 1, 1] [2023-11-12 02:16:26,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:16:26,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-12 02:16:26,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1332784663, now seen corresponding path program 2 times [2023-11-12 02:16:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381811787] [2023-11-12 02:16:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:26,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:26,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381811787] [2023-11-12 02:16:26,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381811787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:26,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:26,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:26,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536273351] [2023-11-12 02:16:26,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:26,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:26,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:26,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:26,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:26,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 404 [2023-11-12 02:16:26,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 160 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:26,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:26,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 404 [2023-11-12 02:16:26,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:32,945 INFO L124 PetriNetUnfolderBase]: 31843/48890 cut-off events. [2023-11-12 02:16:32,945 INFO L125 PetriNetUnfolderBase]: For 25041/25137 co-relation queries the response was YES. [2023-11-12 02:16:33,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116146 conditions, 48890 events. 31843/48890 cut-off events. For 25041/25137 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 364353 event pairs, 16099 based on Foata normal form. 966/46229 useless extension candidates. Maximal degree in co-relation 114208. Up to 23949 conditions per place. [2023-11-12 02:16:33,700 INFO L140 encePairwiseOnDemand]: 401/404 looper letters, 100 selfloop transitions, 6 changer transitions 0/185 dead transitions. [2023-11-12 02:16:33,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 185 transitions, 937 flow [2023-11-12 02:16:33,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:16:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2023-11-12 02:16:33,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5973597359735974 [2023-11-12 02:16:33,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2023-11-12 02:16:33,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2023-11-12 02:16:33,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:33,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2023-11-12 02:16:33,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:33,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:33,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:33,725 INFO L175 Difference]: Start difference. First operand has 121 places, 160 transitions, 646 flow. Second operand 3 states and 724 transitions. [2023-11-12 02:16:33,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 185 transitions, 937 flow [2023-11-12 02:16:33,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 185 transitions, 921 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:33,950 INFO L231 Difference]: Finished difference. Result has 114 places, 153 transitions, 617 flow [2023-11-12 02:16:33,950 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=114, PETRI_TRANSITIONS=153} [2023-11-12 02:16:33,951 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 24 predicate places. [2023-11-12 02:16:33,951 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 153 transitions, 617 flow [2023-11-12 02:16:33,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:33,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:33,952 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, 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, 1, 1, 1, 1, 1] [2023-11-12 02:16:33,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:16:33,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-12 02:16:33,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:33,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1554059611, now seen corresponding path program 3 times [2023-11-12 02:16:33,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:33,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949395380] [2023-11-12 02:16:33,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:33,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:34,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:34,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949395380] [2023-11-12 02:16:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949395380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:34,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:34,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:34,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188995067] [2023-11-12 02:16:34,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:34,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:34,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:34,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:34,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:34,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 404 [2023-11-12 02:16:34,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 153 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:34,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:34,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 404 [2023-11-12 02:16:34,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:39,170 INFO L124 PetriNetUnfolderBase]: 27708/43073 cut-off events. [2023-11-12 02:16:39,170 INFO L125 PetriNetUnfolderBase]: For 22046/22152 co-relation queries the response was YES. [2023-11-12 02:16:39,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102261 conditions, 43073 events. 27708/43073 cut-off events. For 22046/22152 co-relation queries the response was YES. Maximal size of possible extension queue 1277. Compared 321854 event pairs, 13557 based on Foata normal form. 914/41188 useless extension candidates. Maximal degree in co-relation 84522. Up to 18413 conditions per place. [2023-11-12 02:16:39,513 INFO L140 encePairwiseOnDemand]: 401/404 looper letters, 94 selfloop transitions, 6 changer transitions 0/173 dead transitions. [2023-11-12 02:16:39,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 173 transitions, 878 flow [2023-11-12 02:16:39,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:16:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-11-12 02:16:39,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.599009900990099 [2023-11-12 02:16:39,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-11-12 02:16:39,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-11-12 02:16:39,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:39,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-11-12 02:16:39,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:39,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:39,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 404.0) internal successors, (1616), 4 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:39,524 INFO L175 Difference]: Start difference. First operand has 114 places, 153 transitions, 617 flow. Second operand 3 states and 726 transitions. [2023-11-12 02:16:39,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 173 transitions, 878 flow [2023-11-12 02:16:39,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 173 transitions, 859 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-11-12 02:16:39,669 INFO L231 Difference]: Finished difference. Result has 111 places, 140 transitions, 565 flow [2023-11-12 02:16:39,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=404, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=565, PETRI_PLACES=111, PETRI_TRANSITIONS=140} [2023-11-12 02:16:39,671 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 21 predicate places. [2023-11-12 02:16:39,676 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 140 transitions, 565 flow [2023-11-12 02:16:39,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:39,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:39,678 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, 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, 1, 1, 1, 1, 1] [2023-11-12 02:16:39,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:16:39,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-11-12 02:16:39,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:39,681 INFO L85 PathProgramCache]: Analyzing trace with hash 465805097, now seen corresponding path program 4 times [2023-11-12 02:16:39,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:39,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698226903] [2023-11-12 02:16:39,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:39,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:40,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:40,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698226903] [2023-11-12 02:16:40,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698226903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:40,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:40,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:40,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881946319] [2023-11-12 02:16:40,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:40,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:40,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:40,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:40,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 404 [2023-11-12 02:16:40,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 140 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:40,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:40,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 404 [2023-11-12 02:16:40,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand