./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:00:06,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:00:06,278 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:00:06,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:00:06,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:00:06,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:00:06,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:00:06,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:00:06,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:00:06,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:00:06,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:00:06,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:00:06,313 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:00:06,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:00:06,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:00:06,315 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:00:06,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:00:06,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:00:06,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:00:06,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:00:06,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:00:06,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:00:06,320 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:00:06,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:00:06,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:00:06,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:00:06,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:00:06,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:00:06,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:06,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:00:06,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:00:06,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:00:06,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:00:06,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:00:06,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:00:06,325 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:00:06,326 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:00:06,326 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:00:06,326 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:00:06,327 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_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2023-11-06 22:00:06,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:00:06,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:00:06,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:00:06,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:00:06,642 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:00:06,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-06 22:00:10,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:00:10,490 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:00:10,493 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-06 22:00:10,535 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/data/ba72bfcda/873bb4bc220f493e8536f8e2be204b2c/FLAGe68194a9c [2023-11-06 22:00:10,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/data/ba72bfcda/873bb4bc220f493e8536f8e2be204b2c [2023-11-06 22:00:10,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:00:10,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:00:10,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:10,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:00:10,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:00:10,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:10" (1/1) ... [2023-11-06 22:00:10,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a216c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:10, skipping insertion in model container [2023-11-06 22:00:10,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:10" (1/1) ... [2023-11-06 22:00:10,667 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:00:10,853 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:00:11,620 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_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2023-11-06 22:00:11,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:11,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:00:11,724 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:00:11,772 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_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2023-11-06 22:00:11,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:12,015 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:12,016 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:12,016 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:12,023 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:00:12,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12 WrapperNode [2023-11-06 22:00:12,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:12,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:12,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:00:12,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:00:12,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,145 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2023-11-06 22:00:12,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:12,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:00:12,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:00:12,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:00:12,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,196 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:00:12,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:00:12,230 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:00:12,230 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:00:12,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (1/1) ... [2023-11-06 22:00:12,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:12,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:00:12,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:00:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:00:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:00:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:00:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:00:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:00:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:00:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:00:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:00:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-06 22:00:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-06 22:00:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:00:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:00:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:00:12,328 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:00:12,639 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:00:12,641 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:00:12,894 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:00:12,916 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:00:12,916 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:00:12,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:12 BoogieIcfgContainer [2023-11-06 22:00:12,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:00:12,921 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:00:12,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:00:12,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:00:12,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:10" (1/3) ... [2023-11-06 22:00:12,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510e41bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:12, skipping insertion in model container [2023-11-06 22:00:12,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:12" (2/3) ... [2023-11-06 22:00:12,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510e41bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:12, skipping insertion in model container [2023-11-06 22:00:12,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:12" (3/3) ... [2023-11-06 22:00:12,928 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-11-06 22:00:12,938 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:00:12,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:00:12,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-06 22:00:12,952 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:00:13,019 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:00:13,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 188 transitions, 390 flow [2023-11-06 22:00:13,222 INFO L124 PetriNetUnfolderBase]: 10/234 cut-off events. [2023-11-06 22:00:13,222 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:00:13,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 234 events. 10/234 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 377 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2023-11-06 22:00:13,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 188 transitions, 390 flow [2023-11-06 22:00:13,243 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 172 transitions, 356 flow [2023-11-06 22:00:13,247 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:00:13,258 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 172 transitions, 356 flow [2023-11-06 22:00:13,261 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 172 transitions, 356 flow [2023-11-06 22:00:13,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 172 transitions, 356 flow [2023-11-06 22:00:13,340 INFO L124 PetriNetUnfolderBase]: 7/207 cut-off events. [2023-11-06 22:00:13,340 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:00:13,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 207 events. 7/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 308 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 121. Up to 4 conditions per place. [2023-11-06 22:00:13,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 2376 [2023-11-06 22:00:32,161 INFO L134 LiptonReduction]: Checked pairs total: 3955 [2023-11-06 22:00:32,162 INFO L136 LiptonReduction]: Total number of compositions: 192 [2023-11-06 22:00:32,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:00:32,186 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15d088a3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:00:32,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:00:32,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:00:32,188 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:00:32,188 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:00:32,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:32,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:00:32,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:32,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:32,195 INFO L85 PathProgramCache]: Analyzing trace with hash 654, now seen corresponding path program 1 times [2023-11-06 22:00:32,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:32,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114478092] [2023-11-06 22:00:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:32,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:32,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114478092] [2023-11-06 22:00:32,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114478092] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:32,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:32,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:00:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213461942] [2023-11-06 22:00:32,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:32,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:00:32,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:00:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:00:32,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 380 [2023-11-06 22:00:32,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:32,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:32,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 380 [2023-11-06 22:00:32,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:32,670 INFO L124 PetriNetUnfolderBase]: 169/315 cut-off events. [2023-11-06 22:00:32,671 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:00:32,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 315 events. 169/315 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1212 event pairs, 168 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 567. Up to 312 conditions per place. [2023-11-06 22:00:32,679 INFO L140 encePairwiseOnDemand]: 377/380 looper letters, 24 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2023-11-06 22:00:32,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 110 flow [2023-11-06 22:00:32,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:00:32,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:00:32,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 367 transitions. [2023-11-06 22:00:32,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48289473684210527 [2023-11-06 22:00:32,707 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 367 transitions. [2023-11-06 22:00:32,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 367 transitions. [2023-11-06 22:00:32,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:32,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 367 transitions. [2023-11-06 22:00:32,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.5) internal successors, (367), 2 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:32,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:32,766 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:32,768 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 68 flow. Second operand 2 states and 367 transitions. [2023-11-06 22:00:32,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 110 flow [2023-11-06 22:00:32,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 102 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:00:32,784 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 54 flow [2023-11-06 22:00:32,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=54, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2023-11-06 22:00:32,803 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2023-11-06 22:00:32,808 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 54 flow [2023-11-06 22:00:32,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:32,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:32,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:00:32,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:00:32,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:32,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:32,816 INFO L85 PathProgramCache]: Analyzing trace with hash 20145159, now seen corresponding path program 1 times [2023-11-06 22:00:32,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:32,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515305768] [2023-11-06 22:00:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:33,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:33,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515305768] [2023-11-06 22:00:33,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515305768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:33,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:33,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:00:33,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728863787] [2023-11-06 22:00:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:33,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:00:33,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:33,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:00:33,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:00:33,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 380 [2023-11-06 22:00:33,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:33,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:33,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 380 [2023-11-06 22:00:33,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:33,778 INFO L124 PetriNetUnfolderBase]: 218/420 cut-off events. [2023-11-06 22:00:33,778 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:00:33,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 420 events. 218/420 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1885 event pairs, 112 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 828. Up to 328 conditions per place. [2023-11-06 22:00:33,783 INFO L140 encePairwiseOnDemand]: 373/380 looper letters, 26 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-11-06 22:00:33,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 33 transitions, 134 flow [2023-11-06 22:00:33,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:00:33,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:00:33,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 495 transitions. [2023-11-06 22:00:33,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2023-11-06 22:00:33,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 495 transitions. [2023-11-06 22:00:33,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 495 transitions. [2023-11-06 22:00:33,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:33,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 495 transitions. [2023-11-06 22:00:33,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:33,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:33,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:33,796 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 54 flow. Second operand 3 states and 495 transitions. [2023-11-06 22:00:33,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 33 transitions, 134 flow [2023-11-06 22:00:33,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:00:33,798 INFO L231 Difference]: Finished difference. Result has 30 places, 29 transitions, 90 flow [2023-11-06 22:00:33,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=30, PETRI_TRANSITIONS=29} [2023-11-06 22:00:33,799 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2023-11-06 22:00:33,799 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 29 transitions, 90 flow [2023-11-06 22:00:33,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:33,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:33,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:00:33,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:00:33,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:33,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash 624499159, now seen corresponding path program 1 times [2023-11-06 22:00:33,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:33,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836211100] [2023-11-06 22:00:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:33,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:34,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:34,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836211100] [2023-11-06 22:00:34,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836211100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:34,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:34,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:00:34,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179627879] [2023-11-06 22:00:34,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:34,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:00:34,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:34,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:00:34,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:00:34,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 380 [2023-11-06 22:00:34,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 29 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:34,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 380 [2023-11-06 22:00:34,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:34,320 INFO L124 PetriNetUnfolderBase]: 291/536 cut-off events. [2023-11-06 22:00:34,320 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2023-11-06 22:00:34,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 536 events. 291/536 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2418 event pairs, 133 based on Foata normal form. 32/566 useless extension candidates. Maximal degree in co-relation 1391. Up to 417 conditions per place. [2023-11-06 22:00:34,325 INFO L140 encePairwiseOnDemand]: 373/380 looper letters, 30 selfloop transitions, 9 changer transitions 2/41 dead transitions. [2023-11-06 22:00:34,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 41 transitions, 218 flow [2023-11-06 22:00:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:00:34,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:00:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 496 transitions. [2023-11-06 22:00:34,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43508771929824563 [2023-11-06 22:00:34,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 496 transitions. [2023-11-06 22:00:34,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 496 transitions. [2023-11-06 22:00:34,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:34,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 496 transitions. [2023-11-06 22:00:34,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,337 INFO L175 Difference]: Start difference. First operand has 30 places, 29 transitions, 90 flow. Second operand 3 states and 496 transitions. [2023-11-06 22:00:34,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 41 transitions, 218 flow [2023-11-06 22:00:34,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 41 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:00:34,341 INFO L231 Difference]: Finished difference. Result has 32 places, 35 transitions, 155 flow [2023-11-06 22:00:34,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=32, PETRI_TRANSITIONS=35} [2023-11-06 22:00:34,342 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2023-11-06 22:00:34,343 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 35 transitions, 155 flow [2023-11-06 22:00:34,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:34,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:34,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:00:34,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:34,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:34,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1179290997, now seen corresponding path program 1 times [2023-11-06 22:00:34,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:34,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340828237] [2023-11-06 22:00:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:34,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:34,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:34,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340828237] [2023-11-06 22:00:34,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340828237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:34,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:34,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:00:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751849927] [2023-11-06 22:00:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:34,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:00:34,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:34,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:00:34,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:00:34,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 380 [2023-11-06 22:00:34,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 35 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:34,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 380 [2023-11-06 22:00:34,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:34,624 INFO L124 PetriNetUnfolderBase]: 72/144 cut-off events. [2023-11-06 22:00:34,625 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-11-06 22:00:34,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 144 events. 72/144 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 419 event pairs, 48 based on Foata normal form. 16/159 useless extension candidates. Maximal degree in co-relation 409. Up to 105 conditions per place. [2023-11-06 22:00:34,626 INFO L140 encePairwiseOnDemand]: 377/380 looper letters, 22 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2023-11-06 22:00:34,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 132 flow [2023-11-06 22:00:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:00:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:00:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2023-11-06 22:00:34,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4587719298245614 [2023-11-06 22:00:34,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2023-11-06 22:00:34,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2023-11-06 22:00:34,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:34,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2023-11-06 22:00:34,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,638 INFO L175 Difference]: Start difference. First operand has 32 places, 35 transitions, 155 flow. Second operand 3 states and 523 transitions. [2023-11-06 22:00:34,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 132 flow [2023-11-06 22:00:34,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 116 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-11-06 22:00:34,641 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 52 flow [2023-11-06 22:00:34,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-11-06 22:00:34,643 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -6 predicate places. [2023-11-06 22:00:34,643 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 52 flow [2023-11-06 22:00:34,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:34,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:34,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:34,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:00:34,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:34,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash -656312748, now seen corresponding path program 1 times [2023-11-06 22:00:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372946004] [2023-11-06 22:00:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:34,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:36,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:36,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372946004] [2023-11-06 22:00:36,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372946004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:36,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:36,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:00:36,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58807796] [2023-11-06 22:00:36,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:36,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:00:36,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:36,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:00:36,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:00:37,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 380 [2023-11-06 22:00:37,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 52 flow. Second operand has 8 states, 8 states have (on average 148.125) internal successors, (1185), 8 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:37,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:37,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 380 [2023-11-06 22:00:37,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:37,542 INFO L124 PetriNetUnfolderBase]: 96/214 cut-off events. [2023-11-06 22:00:37,543 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 22:00:37,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 214 events. 96/214 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 836 event pairs, 6 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 548. Up to 112 conditions per place. [2023-11-06 22:00:37,546 INFO L140 encePairwiseOnDemand]: 374/380 looper letters, 36 selfloop transitions, 9 changer transitions 0/45 dead transitions. [2023-11-06 22:00:37,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 45 transitions, 219 flow [2023-11-06 22:00:37,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:00:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:00:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2023-11-06 22:00:37,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043859649122807 [2023-11-06 22:00:37,553 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 922 transitions. [2023-11-06 22:00:37,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 922 transitions. [2023-11-06 22:00:37,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:37,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 922 transitions. [2023-11-06 22:00:37,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 153.66666666666666) internal successors, (922), 6 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:37,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 380.0) internal successors, (2660), 7 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:37,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 380.0) internal successors, (2660), 7 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:37,570 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 52 flow. Second operand 6 states and 922 transitions. [2023-11-06 22:00:37,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 45 transitions, 219 flow [2023-11-06 22:00:37,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 45 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:00:37,573 INFO L231 Difference]: Finished difference. Result has 31 places, 23 transitions, 93 flow [2023-11-06 22:00:37,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2023-11-06 22:00:37,577 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2023-11-06 22:00:37,577 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 93 flow [2023-11-06 22:00:37,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 148.125) internal successors, (1185), 8 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:37,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:37,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:37,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:00:37,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:37,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:37,581 INFO L85 PathProgramCache]: Analyzing trace with hash -436591687, now seen corresponding path program 1 times [2023-11-06 22:00:37,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184652279] [2023-11-06 22:00:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:40,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:40,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184652279] [2023-11-06 22:00:40,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184652279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:40,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:40,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:00:40,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238480202] [2023-11-06 22:00:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:40,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:00:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:40,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:00:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:00:41,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 380 [2023-11-06 22:00:41,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 93 flow. Second operand has 11 states, 11 states have (on average 142.54545454545453) internal successors, (1568), 11 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:41,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:41,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 380 [2023-11-06 22:00:41,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:42,670 INFO L124 PetriNetUnfolderBase]: 129/326 cut-off events. [2023-11-06 22:00:42,671 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-11-06 22:00:42,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 326 events. 129/326 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1589 event pairs, 10 based on Foata normal form. 1/322 useless extension candidates. Maximal degree in co-relation 886. Up to 111 conditions per place. [2023-11-06 22:00:42,674 INFO L140 encePairwiseOnDemand]: 368/380 looper letters, 58 selfloop transitions, 20 changer transitions 13/91 dead transitions. [2023-11-06 22:00:42,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 91 transitions, 524 flow [2023-11-06 22:00:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:00:42,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:00:42,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1632 transitions. [2023-11-06 22:00:42,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39043062200956935 [2023-11-06 22:00:42,681 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1632 transitions. [2023-11-06 22:00:42,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1632 transitions. [2023-11-06 22:00:42,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:42,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1632 transitions. [2023-11-06 22:00:42,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 148.36363636363637) internal successors, (1632), 11 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:42,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:42,703 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:42,704 INFO L175 Difference]: Start difference. First operand has 31 places, 23 transitions, 93 flow. Second operand 11 states and 1632 transitions. [2023-11-06 22:00:42,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 91 transitions, 524 flow [2023-11-06 22:00:42,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 91 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:00:42,712 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 270 flow [2023-11-06 22:00:42,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=270, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-11-06 22:00:42,715 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2023-11-06 22:00:42,715 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 270 flow [2023-11-06 22:00:42,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 142.54545454545453) internal successors, (1568), 11 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:00:42,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:42,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:42,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:00:42,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-11-06 22:00:42,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash 503533505, now seen corresponding path program 2 times [2023-11-06 22:00:42,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:42,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407516871] [2023-11-06 22:00:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:42,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:00:42,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:00:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:00:42,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:00:42,872 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:00:42,873 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-11-06 22:00:42,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-11-06 22:00:42,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-11-06 22:00:42,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-11-06 22:00:42,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-11-06 22:00:42,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-11-06 22:00:42,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-11-06 22:00:42,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-11-06 22:00:42,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:00:42,879 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-11-06 22:00:42,884 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:00:42,885 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:00:42,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:00:42 BasicIcfg [2023-11-06 22:00:42,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:00:42,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:00:42,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:00:42,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:00:42,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:12" (3/4) ... [2023-11-06 22:00:42,989 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:00:43,094 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:00:43,094 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:00:43,095 INFO L158 Benchmark]: Toolchain (without parser) took 32528.90ms. Allocated memory was 144.7MB in the beginning and 318.8MB in the end (delta: 174.1MB). Free memory was 94.8MB in the beginning and 265.6MB in the end (delta: -170.8MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,095 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:00:43,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.30ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 94.6MB in the beginning and 121.9MB in the end (delta: -27.4MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.17ms. Allocated memory is still 182.5MB. Free memory was 121.9MB in the beginning and 118.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,097 INFO L158 Benchmark]: Boogie Preprocessor took 82.90ms. Allocated memory is still 182.5MB. Free memory was 118.7MB in the beginning and 115.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,097 INFO L158 Benchmark]: RCFGBuilder took 688.97ms. Allocated memory is still 182.5MB. Free memory was 115.7MB in the beginning and 91.4MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,098 INFO L158 Benchmark]: TraceAbstraction took 30064.96ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 90.6MB in the beginning and 271.8MB in the end (delta: -181.3MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,098 INFO L158 Benchmark]: Witness Printer took 107.47ms. Allocated memory is still 318.8MB. Free memory was 271.8MB in the beginning and 265.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:00:43,101 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 144.7MB. Free memory is still 120.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.30ms. Allocated memory was 144.7MB in the beginning and 182.5MB in the end (delta: 37.7MB). Free memory was 94.6MB in the beginning and 121.9MB in the end (delta: -27.4MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.17ms. Allocated memory is still 182.5MB. Free memory was 121.9MB in the beginning and 118.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.90ms. Allocated memory is still 182.5MB. Free memory was 118.7MB in the beginning and 115.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.97ms. Allocated memory is still 182.5MB. Free memory was 115.7MB in the beginning and 91.4MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 30064.96ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 90.6MB in the beginning and 271.8MB in the end (delta: -181.3MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. * Witness Printer took 107.47ms. Allocated memory is still 318.8MB. Free memory was 271.8MB in the beginning and 265.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.9s, 172 PlacesBefore, 32 PlacesAfterwards, 172 TransitionsBefore, 28 TransitionsAfterwards, 2376 CoEnabledTransitionPairs, 8 FixpointIterations, 107 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 192 TotalNumberOfCompositions, 3955 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2060, independent: 1900, independent conditional: 0, independent unconditional: 1900, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1270, independent: 1225, independent conditional: 0, independent unconditional: 1225, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2060, independent: 675, independent conditional: 0, independent unconditional: 675, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 1270, unknown conditional: 0, unknown unconditional: 1270] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1688] 0 struct device *my_dev; [L1733] CALL, EXPR 0 my_drv_init() [L1727] 0 return 0; [L1733] RET, EXPR 0 my_drv_init() [L1733] 0 int ret = my_drv_init(); [L1734] COND TRUE 0 ret==0 [L1735] 0 int probe_ret; [L1736] 0 struct my_data data; [L1737] CALL, EXPR 0 my_drv_probe(&data) [L1705] 0 data->shared.a = 0 [L1706] 0 data->shared.b = 0 [L1707] EXPR 0 data->shared.a [L1707] CALL 0 ldv_assert(data->shared.a==0) [L1675] COND FALSE 0 !(!expression) [L1707] RET 0 ldv_assert(data->shared.a==0) [L1708] EXPR 0 data->shared.b [L1708] CALL 0 ldv_assert(data->shared.b==0) [L1675] COND FALSE 0 !(!expression) [L1708] RET 0 ldv_assert(data->shared.b==0) [L1709] 0 int res = __VERIFIER_nondet_int(); [L1710] COND FALSE 0 !(\read(res)) [L1712] 0 my_dev = &data->dev [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, data={6:0}, data={6:0}, my_dev={6:24}, pthread_create(&t1, ((void *)0), my_callback, ((void *)0))=-1, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, data={6:0}, data={6:0}, my_dev={6:24}, pthread_create(&t2, ((void *)0), my_callback, ((void *)0))=0, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; [L1737] RET, EXPR 0 my_drv_probe(&data) [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [arg={0:0}, arg={0:0}, data={6:0}, my_dev={6:24}, t1={3:0}, t2={4:0}] [L1737] 0 probe_ret = my_drv_probe(&data) [L1738] COND TRUE 0 probe_ret==0 [L1739] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [\read(t1)=-1, arg={0:0}, arg={0:0}, data={6:0}, data={6:0}, data={6:0}, my_dev={6:24}, status={5:0}, t1={3:0}, t2={4:0}] [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 2 data->shared.a = 1 VAL [arg={0:0}, arg={0:0}, data={6:0}, my_dev={6:24}, t1={3:0}, t2={4:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1696] 1 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 [L1701] 1 return 0; [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\read(t1)=-1, \result={0:0}, arg={0:0}, arg={0:0}, data={6:0}, data={6:0}, data={6:0}, lb=0, my_dev={6:24}, pthread_join(t1, &status)={0:0}, status={5:0}, t1={3:0}, t2={4:0}] [L1699] 2 data->shared.b = lb + 1 [L1701] 2 return 0; [L1723] 0 \read(t2) VAL [\read(t2)=0, \result={0:0}, arg={0:0}, arg={0:0}, data={6:0}, data={6:0}, data={6:0}, lb=0, my_dev={6:24}, status={5:0}, t1={3:0}, t2={4:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\read(t2)=0, \result={0:0}, arg={0:0}, arg={0:0}, data={6:0}, data={6:0}, data={6:0}, lb=0, my_dev={6:24}, pthread_join(t2, &status)={0:0}, status={5:0}, t1={3:0}, t2={4:0}] [L1739] RET 0 my_drv_disconnect(&data) [L1740] EXPR 0 data.shared.a [L1740] CALL 0 ldv_assert(data.shared.a==1) [L1675] COND FALSE 0 !(!expression) [L1740] RET 0 ldv_assert(data.shared.a==1) [L1741] EXPR 0 data.shared.b [L1741] CALL 0 ldv_assert(data.shared.b==2) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, data={6:0}, expression=0, lb=0, my_dev={6:24}, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 195 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 29.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 19.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 665 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 257 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2493 IncrementalHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 0 mSDtfsCounter, 2493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=6, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:00:43,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_169e9b43-1fa2-425f-bf36-9d7ddfea0fba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE