./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5dad65ad Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-dev-5dad65a-m [2024-10-22 10:57:06,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-22 10:57:06,500 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-22 10:57:06,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-22 10:57:06,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-22 10:57:06,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-22 10:57:06,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-22 10:57:06,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-22 10:57:06,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-22 10:57:06,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-22 10:57:06,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-22 10:57:06,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-22 10:57:06,536 INFO L153 SettingsManager]: * Use SBE=true [2024-10-22 10:57:06,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-22 10:57:06,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-22 10:57:06,538 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-22 10:57:06,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-22 10:57:06,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-22 10:57:06,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-22 10:57:06,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-22 10:57:06,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-22 10:57:06,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-22 10:57:06,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-22 10:57:06,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-22 10:57:06,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-22 10:57:06,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-22 10:57:06,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-22 10:57:06,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-22 10:57:06,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-22 10:57:06,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-22 10:57:06,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 10:57:06,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-22 10:57:06,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-22 10:57:06,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-22 10:57:06,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-22 10:57:06,544 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-22 10:57:06,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-22 10:57:06,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-22 10:57:06,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-22 10:57:06,545 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-22 10:57:06,546 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-22 10:57:06,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP [2024-10-22 10:57:06,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-22 10:57:06,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-22 10:57:06,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-22 10:57:06,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-22 10:57:06,796 INFO L274 PluginConnector]: CDTParser initialized [2024-10-22 10:57:06,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2024-10-22 10:57:08,048 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-22 10:57:08,301 INFO L384 CDTParser]: Found 1 translation units. [2024-10-22 10:57:08,301 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2024-10-22 10:57:08,326 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/52f0590c0/5c20b17c6ed247e4863b5d9a1e4b9174/FLAG5923aeaa8 [2024-10-22 10:57:08,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/52f0590c0/5c20b17c6ed247e4863b5d9a1e4b9174 [2024-10-22 10:57:08,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-22 10:57:08,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-22 10:57:08,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-22 10:57:08,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-22 10:57:08,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-22 10:57:08,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:57:08" (1/1) ... [2024-10-22 10:57:08,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79607500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:08, skipping insertion in model container [2024-10-22 10:57:08,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:57:08" (1/1) ... [2024-10-22 10:57:08,692 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-22 10:57:09,052 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[186287,186300] [2024-10-22 10:57:09,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 10:57:09,087 INFO L200 MainTranslator]: Completed pre-run [2024-10-22 10:57:09,133 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[186287,186300] [2024-10-22 10:57:09,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-22 10:57:09,176 INFO L204 MainTranslator]: Completed translation [2024-10-22 10:57:09,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09 WrapperNode [2024-10-22 10:57:09,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-22 10:57:09,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-22 10:57:09,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-22 10:57:09,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-22 10:57:09,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,228 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 108 [2024-10-22 10:57:09,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-22 10:57:09,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-22 10:57:09,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-22 10:57:09,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-22 10:57:09,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-22 10:57:09,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-22 10:57:09,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-22 10:57:09,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-22 10:57:09,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (1/1) ... [2024-10-22 10:57:09,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-22 10:57:09,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 10:57:09,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-22 10:57:09,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-22 10:57:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-22 10:57:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-22 10:57:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-22 10:57:09,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-22 10:57:09,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-22 10:57:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-22 10:57:09,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-22 10:57:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-22 10:57:09,399 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-22 10:57:09,651 INFO L238 CfgBuilder]: Building ICFG [2024-10-22 10:57:09,653 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-22 10:57:09,793 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-22 10:57:09,794 INFO L287 CfgBuilder]: Performing block encoding [2024-10-22 10:57:09,875 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-22 10:57:09,876 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-22 10:57:09,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:57:09 BoogieIcfgContainer [2024-10-22 10:57:09,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-22 10:57:09,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-22 10:57:09,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-22 10:57:09,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-22 10:57:09,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 10:57:08" (1/3) ... [2024-10-22 10:57:09,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1563250b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:57:09, skipping insertion in model container [2024-10-22 10:57:09,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:57:09" (2/3) ... [2024-10-22 10:57:09,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1563250b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:57:09, skipping insertion in model container [2024-10-22 10:57:09,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:57:09" (3/3) ... [2024-10-22 10:57:09,885 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2024-10-22 10:57:09,898 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-22 10:57:09,898 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-22 10:57:09,898 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-22 10:57:09,932 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-22 10:57:09,963 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 10:57:09,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-22 10:57:09,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-22 10:57:09,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-22 10:57:09,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-22 10:57:09,991 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-22 10:57:10,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-22 10:57:10,006 INFO L333 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@2fc98ac3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-22 10:57:10,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-22 10:57:10,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:10,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1544696618, now seen corresponding path program 1 times [2024-10-22 10:57:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:10,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828035465] [2024-10-22 10:57:10,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:10,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:10,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:10,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828035465] [2024-10-22 10:57:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828035465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-22 10:57:10,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611020952] [2024-10-22 10:57:10,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:10,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-22 10:57:10,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:10,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-22 10:57:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-22 10:57:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:10,624 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:10,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-10-22 10:57:10,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:10,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-22 10:57:10,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:10,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:10,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1605291128, now seen corresponding path program 1 times [2024-10-22 10:57:10,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:10,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125445754] [2024-10-22 10:57:10,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:10,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125445754] [2024-10-22 10:57:10,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125445754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:10,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:10,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-22 10:57:10,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234149466] [2024-10-22 10:57:10,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:10,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-22 10:57:10,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-22 10:57:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-22 10:57:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:10,855 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:10,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-22 10:57:10,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:10,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:12,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:12,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-22 10:57:12,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:12,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1704738767, now seen corresponding path program 1 times [2024-10-22 10:57:12,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:12,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595085780] [2024-10-22 10:57:12,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:12,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:13,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:13,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595085780] [2024-10-22 10:57:13,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595085780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:13,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:13,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-22 10:57:13,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760946117] [2024-10-22 10:57:13,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:13,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-22 10:57:13,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:13,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-22 10:57:13,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-22 10:57:13,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:13,227 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:13,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2024-10-22 10:57:13,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:13,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:13,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:13,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-22 10:57:13,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:13,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:13,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1871358620, now seen corresponding path program 1 times [2024-10-22 10:57:13,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:13,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134525185] [2024-10-22 10:57:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:13,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:14,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:14,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:14,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134525185] [2024-10-22 10:57:14,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134525185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:14,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:14,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-22 10:57:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811368623] [2024-10-22 10:57:14,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:14,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-22 10:57:14,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:14,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-22 10:57:14,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-22 10:57:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:14,609 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:14,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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) [2024-10-22 10:57:14,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:14,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:14,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:14,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-22 10:57:16,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-22 10:57:16,501 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:16,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:16,501 INFO L85 PathProgramCache]: Analyzing trace with hash 675323422, now seen corresponding path program 1 times [2024-10-22 10:57:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:16,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380258104] [2024-10-22 10:57:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:16,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:16,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:16,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380258104] [2024-10-22 10:57:16,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380258104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:16,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:16,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-22 10:57:16,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173762715] [2024-10-22 10:57:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:16,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-22 10:57:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-22 10:57:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-22 10:57:16,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:16,581 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:16,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-10-22 10:57:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-10-22 10:57:16,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-22 10:57:17,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 10:57:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-22 10:57:17,370 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1164823947, now seen corresponding path program 2 times [2024-10-22 10:57:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:17,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543835323] [2024-10-22 10:57:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:17,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:17,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543835323] [2024-10-22 10:57:17,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543835323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:17,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:17,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-22 10:57:17,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991885602] [2024-10-22 10:57:17,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:17,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-22 10:57:17,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:17,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-22 10:57:17,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-22 10:57:17,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:17,824 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:17,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 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) [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 10:57:17,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:18,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:18,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 10:57:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-22 10:57:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 10:57:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 10:57:18,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-22 10:57:18,967 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:18,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:18,968 INFO L85 PathProgramCache]: Analyzing trace with hash 916557327, now seen corresponding path program 3 times [2024-10-22 10:57:18,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:18,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739290368] [2024-10-22 10:57:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:18,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-22 10:57:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-22 10:57:19,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-22 10:57:19,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739290368] [2024-10-22 10:57:19,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739290368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-22 10:57:19,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-22 10:57:19,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-22 10:57:19,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239749662] [2024-10-22 10:57:19,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-22 10:57:19,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-22 10:57:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-22 10:57:19,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-22 10:57:19,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-22 10:57:19,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:19,552 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-22 10:57:19,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 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) [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-22 10:57:19,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-22 10:57:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-22 10:57:20,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-22 10:57:20,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-22 10:57:20,236 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-10-22 10:57:20,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-22 10:57:20,237 INFO L85 PathProgramCache]: Analyzing trace with hash 343352258, now seen corresponding path program 2 times [2024-10-22 10:57:20,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-22 10:57:20,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664253590] [2024-10-22 10:57:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-22 10:57:20,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-22 10:57:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 10:57:20,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-22 10:57:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-22 10:57:20,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-22 10:57:20,316 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-22 10:57:20,317 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-10-22 10:57:20,318 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-10-22 10:57:20,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-10-22 10:57:20,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2024-10-22 10:57:20,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-22 10:57:20,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-22 10:57:20,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-22 10:57:20,323 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-10-22 10:57:20,362 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-22 10:57:20,362 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-22 10:57:20,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:57:20 BasicIcfg [2024-10-22 10:57:20,369 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-22 10:57:20,369 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-22 10:57:20,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-22 10:57:20,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-22 10:57:20,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:57:09" (3/4) ... [2024-10-22 10:57:20,374 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-22 10:57:20,432 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-22 10:57:20,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-22 10:57:20,432 INFO L158 Benchmark]: Toolchain (without parser) took 11804.11ms. Allocated memory was 161.5MB in the beginning and 379.6MB in the end (delta: 218.1MB). Free memory was 82.4MB in the beginning and 137.8MB in the end (delta: -55.4MB). Peak memory consumption was 164.4MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,432 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 161.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-22 10:57:20,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.38ms. Allocated memory is still 161.5MB. Free memory was 82.2MB in the beginning and 109.2MB in the end (delta: -27.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.93ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,433 INFO L158 Benchmark]: Boogie Preprocessor took 39.26ms. Allocated memory is still 161.5MB. Free memory was 106.0MB in the beginning and 103.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,434 INFO L158 Benchmark]: RCFGBuilder took 608.41ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 96.5MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,434 INFO L158 Benchmark]: TraceAbstraction took 10490.08ms. Allocated memory was 161.5MB in the beginning and 379.6MB in the end (delta: 218.1MB). Free memory was 95.5MB in the beginning and 146.2MB in the end (delta: -50.7MB). Peak memory consumption was 169.5MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,437 INFO L158 Benchmark]: Witness Printer took 62.74ms. Allocated memory is still 379.6MB. Free memory was 145.1MB in the beginning and 137.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-22 10:57:20,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 161.5MB. Free memory is still 130.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.38ms. Allocated memory is still 161.5MB. Free memory was 82.2MB in the beginning and 109.2MB in the end (delta: -27.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.93ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.26ms. Allocated memory is still 161.5MB. Free memory was 106.0MB in the beginning and 103.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.41ms. Allocated memory is still 161.5MB. Free memory was 103.8MB in the beginning and 96.5MB in the end (delta: 7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10490.08ms. Allocated memory was 161.5MB in the beginning and 379.6MB in the end (delta: 218.1MB). Free memory was 95.5MB in the beginning and 146.2MB in the end (delta: -50.7MB). Peak memory consumption was 169.5MB. Max. memory is 16.1GB. * Witness Printer took 62.74ms. Allocated memory is still 379.6MB. Free memory was 145.1MB in the beginning and 137.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 668, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 126, dependent conditional: 98, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 576, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 34, dependent conditional: 6, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 576, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 34, dependent conditional: 6, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 611, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 69, dependent conditional: 41, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 611, independent: 542, independent conditional: 10, independent unconditional: 532, dependent: 69, dependent conditional: 22, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 611, independent: 542, independent conditional: 10, independent unconditional: 532, dependent: 69, dependent conditional: 22, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 361, independent: 317, independent conditional: 9, independent unconditional: 308, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 361, independent: 303, independent conditional: 0, independent unconditional: 303, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 58, independent: 14, independent conditional: 9, independent unconditional: 5, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 14, independent conditional: 9, independent unconditional: 5, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4604, independent: 902, independent conditional: 456, independent unconditional: 446, dependent: 3702, dependent conditional: 1191, dependent unconditional: 2510, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 611, independent: 225, independent conditional: 1, independent unconditional: 224, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 361, unknown conditional: 25, unknown unconditional: 336] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 317, Positive conditional cache size: 9, Positive unconditional cache size: 308, Negative cache size: 44, Negative conditional cache size: 16, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 243, Maximal queried relation: 4, Independence queries for same thread: 92, Persistent sets #1 benchmarks: Persistent set computation time: 3.0s, Number of persistent set computation: 107, Number of trivial persistent sets: 102, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 336, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 668, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 126, dependent conditional: 98, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 576, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 34, dependent conditional: 6, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 576, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 34, dependent conditional: 6, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 611, independent: 542, independent conditional: 234, independent unconditional: 308, dependent: 69, dependent conditional: 41, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 611, independent: 542, independent conditional: 10, independent unconditional: 532, dependent: 69, dependent conditional: 22, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 611, independent: 542, independent conditional: 10, independent unconditional: 532, dependent: 69, dependent conditional: 22, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 361, independent: 317, independent conditional: 9, independent unconditional: 308, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 361, independent: 303, independent conditional: 0, independent unconditional: 303, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 58, independent: 14, independent conditional: 9, independent unconditional: 5, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 58, independent: 14, independent conditional: 9, independent unconditional: 5, dependent: 44, dependent conditional: 16, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4604, independent: 902, independent conditional: 456, independent unconditional: 446, dependent: 3702, dependent conditional: 1191, dependent unconditional: 2510, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 611, independent: 225, independent conditional: 1, independent unconditional: 224, dependent: 25, dependent conditional: 6, dependent unconditional: 19, unknown: 361, unknown conditional: 25, unknown unconditional: 336] , Statistics on independence cache: Total cache size (in pairs): 361, Positive cache size: 317, Positive conditional cache size: 9, Positive unconditional cache size: 308, Negative cache size: 44, Negative conditional cache size: 16, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 243, Maximal queried relation: 4, Independence queries for same thread: 92 - CounterExampleResult [Line: 3887]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L3888] 0 pthread_t t1,t2; [L3950] CALL, EXPR 0 my_drv_init() [L3944] 0 return 0; [L3950] RET, EXPR 0 my_drv_init() [L3950] 0 int ret = my_drv_init(); [L3951] COND TRUE 0 ret==0 [L3952] 0 int probe_ret; [L3953] 0 struct my_data data; [L3954] CALL, EXPR 0 my_drv_probe(&data) [L3920] 0 struct device *d = &data->dev; [L3924] 0 data->shared.a = 0 [L3925] 0 data->shared.b = 0 [L3926] 0 int res = __VERIFIER_nondet_int(); [L3927] COND FALSE 0 !(\read(res)) [L3930] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={5:24}, \old(data)={5:0}, d={5:24}, data={5:0}, res=0, t1=-1, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 1 data->shared.a = 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1=-1, t2=0] [L3911] EXPR 1 data->shared.b [L3911] 1 int lb = data->shared.b; [L3931] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={5:24}, \old(data)={5:0}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1=-1, t2=0] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 2 data->shared.a = 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3911] EXPR 2 data->shared.b [L3911] 2 int lb = data->shared.b; [L3914] 2 data->shared.b = lb + 1 VAL [\old(arg)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 2 return 0; [L3914] 1 data->shared.b = lb + 1 VAL [\old(arg)={5:24}, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 1 return 0; [L3932] 0 return 0; VAL [\old(arg)={5:24}, \old(data)={5:0}, \result=0, \result={0:0}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1=-1, t2=0] [L3954] RET, EXPR 0 my_drv_probe(&data) [L3954] 0 probe_ret = my_drv_probe(&data) [L3955] COND TRUE 0 probe_ret==0 [L3956] CALL 0 my_drv_disconnect(&data) [L3938] 0 void *status; VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3939] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3940] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\old(arg)={5:24}, \old(data)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3956] RET 0 my_drv_disconnect(&data) [L3957] EXPR 0 data.shared.a [L3957] CALL 0 ldv_assert(data.shared.a==1) [L3887] COND FALSE 0 !(!expression) VAL [\old(arg)={5:24}, \old(expression)=1, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=1, lb=0, t1=-1, t2=0] [L3957] RET 0 ldv_assert(data.shared.a==1) [L3958] EXPR 0 data.shared.b [L3958] CALL 0 ldv_assert(data.shared.b==2) [L3887] COND TRUE 0 !expression VAL [\old(arg)={5:24}, \old(expression)=0, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, lb=0, t1=-1, t2=0] [L3887] 0 reach_error() VAL [\old(arg)={5:24}, \old(expression)=0, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, lb=0, t1=-1, t2=0] - UnprovableResult [Line: 3887]: 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: 3887]: 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: 3887]: 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: 3930]: 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: 3931]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 52 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 6.5s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 72, 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, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 1635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2024-10-22 10:57:20,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-22 10:57:20,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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