./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:49,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:49,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:47:49,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:49,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:49,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:49,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:49,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:49,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:49,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:49,147 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:49,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:49,149 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:49,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:49,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:49,154 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:49,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:49,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:49,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:49,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:49,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:49,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:49,162 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:49,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:49,163 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:49,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:49,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:49,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:49,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:49,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:49,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:49,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:49,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:49,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:49,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:49,170 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:49,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:49,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:49,170 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:49,171 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_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2023-11-19 07:47:49,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:49,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:49,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:49,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:49,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:49,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-19 07:47:52,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:53,058 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:53,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-19 07:47:53,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/data/3be662f3e/e94e0ac727e2456bacec84e1b82e20b1/FLAGa01e1c5ea [2023-11-19 07:47:53,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/data/3be662f3e/e94e0ac727e2456bacec84e1b82e20b1 [2023-11-19 07:47:53,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:53,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:53,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:53,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:53,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:53,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:53" (1/1) ... [2023-11-19 07:47:53,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e399ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:53, skipping insertion in model container [2023-11-19 07:47:53,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:53" (1/1) ... [2023-11-19 07:47:53,240 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:53,950 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_b57b157d-5a0e-40ce-961b-db2ead4420cb/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-11-19 07:47:54,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:54,040 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:54,097 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_b57b157d-5a0e-40ce-961b-db2ead4420cb/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-11-19 07:47:54,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:54,250 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:54,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54 WrapperNode [2023-11-19 07:47:54,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:54,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:54,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:54,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:54,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,341 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 239 [2023-11-19 07:47:54,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:54,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:54,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:54,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:54,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:54,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:54,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:54,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:54,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (1/1) ... [2023-11-19 07:47:54,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:54,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:54,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:54,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57b157d-5a0e-40ce-961b-db2ead4420cb/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:47:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:47:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:47:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:54,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:54,677 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:54,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:47:55,205 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:47:55,224 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:47:55,224 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-19 07:47:55,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:55 BoogieIcfgContainer [2023-11-19 07:47:55,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:47:55,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:47:55,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:47:55,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:47:55,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:53" (1/3) ... [2023-11-19 07:47:55,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0b5e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:55, skipping insertion in model container [2023-11-19 07:47:55,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:54" (2/3) ... [2023-11-19 07:47:55,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0b5e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:47:55, skipping insertion in model container [2023-11-19 07:47:55,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:47:55" (3/3) ... [2023-11-19 07:47:55,244 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-11-19 07:47:55,251 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:47:55,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:47:55,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 07:47:55,259 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:47:55,349 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:47:55,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 254 transitions, 515 flow [2023-11-19 07:47:55,565 INFO L124 PetriNetUnfolderBase]: 45/365 cut-off events. [2023-11-19 07:47:55,566 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:47:55,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 365 events. 45/365 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1096 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 199. Up to 8 conditions per place. [2023-11-19 07:47:55,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 254 transitions, 515 flow [2023-11-19 07:47:55,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 249 transitions, 502 flow [2023-11-19 07:47:55,593 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:47:55,614 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 249 transitions, 502 flow [2023-11-19 07:47:55,623 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 249 transitions, 502 flow [2023-11-19 07:47:55,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 249 transitions, 502 flow [2023-11-19 07:47:55,736 INFO L124 PetriNetUnfolderBase]: 44/360 cut-off events. [2023-11-19 07:47:55,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:47:55,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 360 events. 44/360 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1052 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 199. Up to 8 conditions per place. [2023-11-19 07:47:55,756 INFO L119 LiptonReduction]: Number of co-enabled transitions 19422 [2023-11-19 07:48:12,314 INFO L134 LiptonReduction]: Checked pairs total: 41957 [2023-11-19 07:48:12,314 INFO L136 LiptonReduction]: Total number of compositions: 197 [2023-11-19 07:48:12,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:12,349 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@384f544b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:12,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:48:12,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:48:12,360 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-19 07:48:12,360 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:12,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:12,361 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:48:12,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 07:48:12,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1975466604, now seen corresponding path program 1 times [2023-11-19 07:48:12,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:12,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477127078] [2023-11-19 07:48:12,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:12,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:12,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:12,659 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:12,661 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:12,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-19 07:48:12,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-19 07:48:12,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2023-11-19 07:48:12,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-19 07:48:12,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:12,669 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 07:48:12,679 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:48:12,679 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:48:12,760 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:48:12,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:12,944 INFO L124 PetriNetUnfolderBase]: 76/587 cut-off events. [2023-11-19 07:48:12,944 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:48:12,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 587 events. 76/587 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2349 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 367. Up to 12 conditions per place. [2023-11-19 07:48:12,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:12,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:12,962 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:12,962 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:12,962 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:12,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 339 transitions, 694 flow [2023-11-19 07:48:13,074 INFO L124 PetriNetUnfolderBase]: 76/587 cut-off events. [2023-11-19 07:48:13,074 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:48:13,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 587 events. 76/587 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2349 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 367. Up to 12 conditions per place. [2023-11-19 07:48:13,121 INFO L119 LiptonReduction]: Number of co-enabled transitions 54448 [2023-11-19 07:48:28,464 INFO L134 LiptonReduction]: Checked pairs total: 113769 [2023-11-19 07:48:28,464 INFO L136 LiptonReduction]: Total number of compositions: 261 [2023-11-19 07:48:28,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:28,469 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@384f544b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:28,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-19 07:48:28,479 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:48:28,480 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2023-11-19 07:48:28,480 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:48:28,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:28,480 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:48:28,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-19 07:48:28,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1410183819, now seen corresponding path program 1 times [2023-11-19 07:48:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787988677] [2023-11-19 07:48:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:28,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:48:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:48:28,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:48:28,649 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:48:28,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 5 remaining) [2023-11-19 07:48:28,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-19 07:48:28,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2023-11-19 07:48:28,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2023-11-19 07:48:28,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-19 07:48:28,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:28,651 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 07:48:28,652 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:48:28,652 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:48:28,728 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:48:28,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,037 INFO L124 PetriNetUnfolderBase]: 112/844 cut-off events. [2023-11-19 07:48:29,038 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:48:29,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 844 events. 112/844 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3881 event pairs, 1 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 595. Up to 16 conditions per place. [2023-11-19 07:48:29,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,076 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:29,077 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 376 places, 424 transitions, 875 flow [2023-11-19 07:48:29,336 INFO L124 PetriNetUnfolderBase]: 112/844 cut-off events. [2023-11-19 07:48:29,337 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:48:29,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 844 events. 112/844 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3881 event pairs, 1 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 595. Up to 16 conditions per place. [2023-11-19 07:48:29,405 INFO L119 LiptonReduction]: Number of co-enabled transitions 103086