./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:21:52,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:21:52,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:21:52,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:21:52,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:21:52,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:21:52,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:21:52,705 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:21:52,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:21:52,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:21:52,706 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:21:52,706 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:21:52,706 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:21:52,706 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:21:52,707 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:21:52,707 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:21:52,707 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:21:52,707 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:21:52,707 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:21:52,708 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:21:52,708 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:21:52,708 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:21:52,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:21:52,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:21:52,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:21:52,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:21:52,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:21:52,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:21:52,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:21:52,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:21:52,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:21:52,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:21:52,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:21:52,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:21:52,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:21:52,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:21:52,712 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:21:52,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:21:52,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:21:52,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:21:52,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:21:52,713 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab [2024-11-14 05:21:53,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:21:53,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:21:53,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:21:53,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:21:53,155 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:21:53,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i Unable to find full path for "g++" [2024-11-14 05:21:55,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:21:55,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:21:55,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i [2024-11-14 05:21:55,768 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/data/cdd132914/0269ded7498f4692859172a4752806f7/FLAGd35cfb50a [2024-11-14 05:21:55,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/data/cdd132914/0269ded7498f4692859172a4752806f7 [2024-11-14 05:21:55,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:21:55,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:21:55,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:21:55,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:21:55,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:21:55,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:21:55" (1/1) ... [2024-11-14 05:21:55,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2904478a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:55, skipping insertion in model container [2024-11-14 05:21:55,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:21:55" (1/1) ... [2024-11-14 05:21:55,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:21:56,138 WARN L250 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_b9246d67-2b20-47be-91ee-83160a4c7ca7/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i[994,1007] [2024-11-14 05:21:56,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:21:56,652 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:21:56,665 WARN L250 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_b9246d67-2b20-47be-91ee-83160a4c7ca7/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i[994,1007] [2024-11-14 05:21:56,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:21:56,847 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:21:56,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56 WrapperNode [2024-11-14 05:21:56,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:21:56,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:21:56,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:21:56,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:21:56,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,921 INFO L138 Inliner]: procedures = 175, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 159 [2024-11-14 05:21:56,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:21:56,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:21:56,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:21:56,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:21:56,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,954 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:21:56,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:21:56,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:21:56,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:21:56,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (1/1) ... [2024-11-14 05:21:56,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:21:57,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:21:57,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:21:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:21:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-14 05:21:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-14 05:21:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-14 05:21:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-14 05:21:57,072 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-14 05:21:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:21:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-14 05:21:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:21:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:21:57,075 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 05:21:57,302 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:21:57,306 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:21:58,223 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 05:21:58,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:21:58,918 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:21:58,918 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:21:58,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:21:58 BoogieIcfgContainer [2024-11-14 05:21:58,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:21:58,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:21:58,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:21:58,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:21:58,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:21:55" (1/3) ... [2024-11-14 05:21:58,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ebf37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:21:58, skipping insertion in model container [2024-11-14 05:21:58,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:21:56" (2/3) ... [2024-11-14 05:21:58,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ebf37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:21:58, skipping insertion in model container [2024-11-14 05:21:58,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:21:58" (3/3) ... [2024-11-14 05:21:58,932 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.opt.i [2024-11-14 05:21:58,950 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:21:58,953 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe015_power.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 05:21:58,956 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 05:21:59,072 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-14 05:21:59,120 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 39 transitions, 90 flow [2024-11-14 05:21:59,486 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3658 states, 3657 states have (on average 3.447908121410993) internal successors, (12609), 3657 states have internal predecessors, (12609), 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) [2024-11-14 05:21:59,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:21:59,534 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=FINITE_AUTOMATA, 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;@156d516e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:21:59,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 05:21:59,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 3658 states, 3657 states have (on average 3.447908121410993) internal successors, (12609), 3657 states have internal predecessors, (12609), 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) [2024-11-14 05:21:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 05:21:59,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:21:59,577 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:21:59,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:21:59,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:21:59,583 INFO L85 PathProgramCache]: Analyzing trace with hash 571327261, now seen corresponding path program 1 times [2024-11-14 05:21:59,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:21:59,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158299468] [2024-11-14 05:21:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:21:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:00,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:00,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158299468] [2024-11-14 05:22:00,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158299468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:00,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:00,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:22:00,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887362524] [2024-11-14 05:22:00,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:00,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 05:22:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 05:22:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 05:22:00,860 INFO L87 Difference]: Start difference. First operand has 3658 states, 3657 states have (on average 3.447908121410993) internal successors, (12609), 3657 states have internal predecessors, (12609), 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) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-14 05:22:01,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:01,291 INFO L93 Difference]: Finished difference Result 5352 states and 18016 transitions. [2024-11-14 05:22:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 05:22:01,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-11-14 05:22:01,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:01,345 INFO L225 Difference]: With dead ends: 5352 [2024-11-14 05:22:01,345 INFO L226 Difference]: Without dead ends: 2608 [2024-11-14 05:22:01,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:01,365 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 60 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:01,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 30 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:22:01,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2024-11-14 05:22:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2608. [2024-11-14 05:22:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2608 states, 2607 states have (on average 3.2255466052934407) internal successors, (8409), 2607 states have internal predecessors, (8409), 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) [2024-11-14 05:22:01,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2608 states to 2608 states and 8409 transitions. [2024-11-14 05:22:01,666 INFO L78 Accepts]: Start accepts. Automaton has 2608 states and 8409 transitions. Word has length 14 [2024-11-14 05:22:01,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:01,668 INFO L471 AbstractCegarLoop]: Abstraction has 2608 states and 8409 transitions. [2024-11-14 05:22:01,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-14 05:22:01,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2608 states and 8409 transitions. [2024-11-14 05:22:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-14 05:22:01,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:01,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:01,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:22:01,679 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:01,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:01,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1249056648, now seen corresponding path program 1 times [2024-11-14 05:22:01,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:01,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110685231] [2024-11-14 05:22:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:01,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:02,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110685231] [2024-11-14 05:22:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110685231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:02,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:02,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 05:22:02,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162348899] [2024-11-14 05:22:02,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:02,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:22:02,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:02,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:22:02,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:22:02,452 INFO L87 Difference]: Start difference. First operand 2608 states and 8409 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-14 05:22:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:02,811 INFO L93 Difference]: Finished difference Result 3112 states and 9821 transitions. [2024-11-14 05:22:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:22:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) Word has length 19 [2024-11-14 05:22:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:02,829 INFO L225 Difference]: With dead ends: 3112 [2024-11-14 05:22:02,829 INFO L226 Difference]: Without dead ends: 1418 [2024-11-14 05:22:02,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:22:02,835 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 108 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:02,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 37 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:22:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-14 05:22:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1418. [2024-11-14 05:22:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 2.995059985885674) internal successors, (4244), 1417 states have internal predecessors, (4244), 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) [2024-11-14 05:22:02,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 4244 transitions. [2024-11-14 05:22:02,936 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 4244 transitions. Word has length 19 [2024-11-14 05:22:02,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:02,936 INFO L471 AbstractCegarLoop]: Abstraction has 1418 states and 4244 transitions. [2024-11-14 05:22:02,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-14 05:22:02,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 4244 transitions. [2024-11-14 05:22:02,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 05:22:02,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:02,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:02,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:22:02,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:02,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1666743393, now seen corresponding path program 1 times [2024-11-14 05:22:02,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:02,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82631806] [2024-11-14 05:22:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:03,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:03,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82631806] [2024-11-14 05:22:03,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82631806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:03,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:03,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:22:03,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583938425] [2024-11-14 05:22:03,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:03,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 05:22:03,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:03,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 05:22:03,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 05:22:03,889 INFO L87 Difference]: Start difference. First operand 1418 states and 4244 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2024-11-14 05:22:04,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:04,265 INFO L93 Difference]: Finished difference Result 1474 states and 4376 transitions. [2024-11-14 05:22:04,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:22:04,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) Word has length 24 [2024-11-14 05:22:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:04,282 INFO L225 Difference]: With dead ends: 1474 [2024-11-14 05:22:04,282 INFO L226 Difference]: Without dead ends: 970 [2024-11-14 05:22:04,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:22:04,285 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 139 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:04,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 27 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 05:22:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2024-11-14 05:22:04,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2024-11-14 05:22:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 2.992776057791538) internal successors, (2900), 969 states have internal predecessors, (2900), 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) [2024-11-14 05:22:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 2900 transitions. [2024-11-14 05:22:04,352 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 2900 transitions. Word has length 24 [2024-11-14 05:22:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:04,353 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 2900 transitions. [2024-11-14 05:22:04,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2024-11-14 05:22:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 2900 transitions. [2024-11-14 05:22:04,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:22:04,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:04,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:04,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:22:04,361 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:04,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash 477476256, now seen corresponding path program 1 times [2024-11-14 05:22:04,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:04,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284966336] [2024-11-14 05:22:04,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:04,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:09,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:09,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:09,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284966336] [2024-11-14 05:22:09,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284966336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:09,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:09,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:22:09,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236560825] [2024-11-14 05:22:09,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:09,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:22:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:22:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:22:09,464 INFO L87 Difference]: Start difference. First operand 970 states and 2900 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:10,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:10,628 INFO L93 Difference]: Finished difference Result 1778 states and 5136 transitions. [2024-11-14 05:22:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:22:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) Word has length 30 [2024-11-14 05:22:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:10,643 INFO L225 Difference]: With dead ends: 1778 [2024-11-14 05:22:10,644 INFO L226 Difference]: Without dead ends: 1298 [2024-11-14 05:22:10,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:22:10,647 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 103 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:10,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 148 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:22:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2024-11-14 05:22:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 874. [2024-11-14 05:22:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 873 states have (on average 2.9369988545246275) internal successors, (2564), 873 states have internal predecessors, (2564), 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) [2024-11-14 05:22:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 2564 transitions. [2024-11-14 05:22:10,721 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 2564 transitions. Word has length 30 [2024-11-14 05:22:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:10,725 INFO L471 AbstractCegarLoop]: Abstraction has 874 states and 2564 transitions. [2024-11-14 05:22:10,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 2564 transitions. [2024-11-14 05:22:10,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:22:10,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:10,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:10,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:22:10,729 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:10,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -947360578, now seen corresponding path program 2 times [2024-11-14 05:22:10,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:10,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975664101] [2024-11-14 05:22:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:10,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:15,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975664101] [2024-11-14 05:22:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975664101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:15,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:15,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:22:15,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980705688] [2024-11-14 05:22:15,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:15,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:22:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:15,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:22:15,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:22:15,441 INFO L87 Difference]: Start difference. First operand 874 states and 2564 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:16,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:16,125 INFO L93 Difference]: Finished difference Result 1442 states and 4168 transitions. [2024-11-14 05:22:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 05:22:16,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) Word has length 30 [2024-11-14 05:22:16,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:16,135 INFO L225 Difference]: With dead ends: 1442 [2024-11-14 05:22:16,136 INFO L226 Difference]: Without dead ends: 850 [2024-11-14 05:22:16,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-14 05:22:16,139 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 124 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:16,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 67 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 05:22:16,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-14 05:22:16,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 714. [2024-11-14 05:22:16,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 713 states have (on average 2.8779803646563815) internal successors, (2052), 713 states have internal predecessors, (2052), 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) [2024-11-14 05:22:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 2052 transitions. [2024-11-14 05:22:16,173 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 2052 transitions. Word has length 30 [2024-11-14 05:22:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:16,174 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 2052 transitions. [2024-11-14 05:22:16,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 2052 transitions. [2024-11-14 05:22:16,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:22:16,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:16,177 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:16,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:22:16,177 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:16,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2095728040, now seen corresponding path program 3 times [2024-11-14 05:22:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348372814] [2024-11-14 05:22:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:22:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 05:22:19,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:22:19,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348372814] [2024-11-14 05:22:19,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348372814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:22:19,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:22:19,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 05:22:19,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14209272] [2024-11-14 05:22:19,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:22:19,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 05:22:19,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:22:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 05:22:19,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 05:22:19,225 INFO L87 Difference]: Start difference. First operand 714 states and 2052 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:22:20,172 INFO L93 Difference]: Finished difference Result 1090 states and 3108 transitions. [2024-11-14 05:22:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 05:22:20,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) Word has length 30 [2024-11-14 05:22:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:22:20,182 INFO L225 Difference]: With dead ends: 1090 [2024-11-14 05:22:20,182 INFO L226 Difference]: Without dead ends: 650 [2024-11-14 05:22:20,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-14 05:22:20,187 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 109 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:22:20,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 133 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 05:22:20,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-14 05:22:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-11-14 05:22:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 2.835130970724191) internal successors, (1840), 649 states have internal predecessors, (1840), 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) [2024-11-14 05:22:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1840 transitions. [2024-11-14 05:22:20,219 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1840 transitions. Word has length 30 [2024-11-14 05:22:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:22:20,220 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 1840 transitions. [2024-11-14 05:22:20,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 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) [2024-11-14 05:22:20,221 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1840 transitions. [2024-11-14 05:22:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 05:22:20,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:22:20,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:22:20,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:22:20,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-14 05:22:20,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:22:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1622989664, now seen corresponding path program 4 times [2024-11-14 05:22:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:22:20,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006420556] [2024-11-14 05:22:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:22:20,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:22:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:22:20,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:22:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:22:20,756 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:22:20,756 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:22:20,758 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-14 05:22:20,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-14 05:22:20,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-14 05:22:20,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-14 05:22:20,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:22:20,765 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-14 05:22:20,906 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 05:22:20,906 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:22:20,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:22:20 BasicIcfg [2024-11-14 05:22:20,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:22:20,913 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:22:20,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:22:20,914 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:22:20,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:21:58" (3/4) ... [2024-11-14 05:22:20,916 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:22:21,123 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:22:21,123 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:22:21,125 INFO L158 Benchmark]: Toolchain (without parser) took 25330.95ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 91.7MB in the beginning and 377.5MB in the end (delta: -285.8MB). Peak memory consumption was 117.9MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,127 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:22:21,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1054.56ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 65.2MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.40ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 62.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,128 INFO L158 Benchmark]: Boogie Preprocessor took 47.00ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 60.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:22:21,130 INFO L158 Benchmark]: RCFGBuilder took 1949.65ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 45.6MB in the end (delta: 14.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,131 INFO L158 Benchmark]: TraceAbstraction took 21989.69ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 44.8MB in the beginning and 394.3MB in the end (delta: -349.4MB). Peak memory consumption was 293.5MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,131 INFO L158 Benchmark]: Witness Printer took 210.09ms. Allocated memory is still 520.1MB. Free memory was 394.3MB in the beginning and 377.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:22:21,134 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1054.56ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 65.2MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.40ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 62.4MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.00ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 60.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1949.65ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 45.6MB in the end (delta: 14.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21989.69ms. Allocated memory was 117.4MB in the beginning and 520.1MB in the end (delta: 402.7MB). Free memory was 44.8MB in the beginning and 394.3MB in the end (delta: -349.4MB). Peak memory consumption was 293.5MB. Max. memory is 16.1GB. * Witness Printer took 210.09ms. Allocated memory is still 520.1MB. Free memory was 394.3MB in the beginning and 377.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L715] 0 _Bool __unbuffered_p2_EAX$flush_delayed; [L716] 0 int __unbuffered_p2_EAX$mem_tmp; [L717] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd0; [L718] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd1; [L719] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd2; [L720] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd3; [L721] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p2_EAX$read_delayed; [L726] 0 int *__unbuffered_p2_EAX$read_delayed_var; [L727] 0 int __unbuffered_p2_EAX$w_buff0; [L728] 0 _Bool __unbuffered_p2_EAX$w_buff0_used; [L729] 0 int __unbuffered_p2_EAX$w_buff1; [L730] 0 _Bool __unbuffered_p2_EAX$w_buff1_used; [L731] 0 _Bool main$tmp_guard0; [L732] 0 _Bool main$tmp_guard1; [L734] 0 int x = 0; [L735] 0 _Bool x$flush_delayed; [L736] 0 int x$mem_tmp; [L737] 0 _Bool x$r_buff0_thd0; [L738] 0 _Bool x$r_buff0_thd1; [L739] 0 _Bool x$r_buff0_thd2; [L740] 0 _Bool x$r_buff0_thd3; [L741] 0 _Bool x$r_buff1_thd0; [L742] 0 _Bool x$r_buff1_thd1; [L743] 0 _Bool x$r_buff1_thd2; [L744] 0 _Bool x$r_buff1_thd3; [L745] 0 _Bool x$read_delayed; [L746] 0 int *x$read_delayed_var; [L747] 0 int x$w_buff0; [L748] 0 _Bool x$w_buff0_used; [L749] 0 int x$w_buff1; [L750] 0 _Bool x$w_buff1_used; [L752] 0 int y = 0; [L753] 0 _Bool weak$$choice0; [L754] 0 _Bool weak$$choice1; [L755] 0 _Bool weak$$choice2; [L853] 0 pthread_t t2124; [L854] FCALL, FORK 0 pthread_create(&t2124, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2124=-3, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L855] 0 pthread_t t2125; [L856] FCALL, FORK 0 pthread_create(&t2125, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2124=-3, t2125=-2, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L857] 0 pthread_t t2126; [L858] FCALL, FORK 0 pthread_create(&t2126, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2124=-3, t2125=-2, t2126=-1, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L809] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L810] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L811] 3 x$flush_delayed = weak$$choice2 [L812] EXPR 3 \read(x) [L812] 3 x$mem_tmp = x [L813] 3 weak$$choice1 = __VERIFIER_nondet_bool() [L814] EXPR 3 !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x)))) [L814] EXPR 3 \read(x) [L814] EXPR 3 !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x)))) [L814] 3 x = !x$w_buff0_used ? x : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x : (weak$$choice1 ? x$w_buff0 : x$w_buff1)) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$w_buff1 : x$w_buff0) : (weak$$choice0 ? x$w_buff0 : x)))) [L815] 3 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff0 : x$w_buff0)))) [L816] 3 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff1 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff1 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$w_buff1 : x$w_buff1)))) [L817] 3 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 || !weak$$choice1 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 : weak$$choice0)))) [L818] 3 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? weak$$choice0 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)))) [L819] 3 x$r_buff0_thd3 = weak$$choice2 ? x$r_buff0_thd3 : (!x$w_buff0_used ? x$r_buff0_thd3 : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? x$r_buff0_thd3 : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)))) [L820] 3 x$r_buff1_thd3 = weak$$choice2 ? x$r_buff1_thd3 : (!x$w_buff0_used ? x$r_buff1_thd3 : (x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : (x$w_buff0_used && !x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (weak$$choice0 ? x$r_buff1_thd3 : (_Bool)0) : (x$w_buff0_used && x$r_buff1_thd3 && x$w_buff1_used && !x$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)))) [L821] 3 __unbuffered_p2_EAX$read_delayed = (_Bool)1 [L822] 3 __unbuffered_p2_EAX$read_delayed_var = &x [L823] EXPR 3 \read(x) [L823] 3 __unbuffered_p2_EAX = x [L824] EXPR 3 x$flush_delayed ? x$mem_tmp : x [L824] 3 x = x$flush_delayed ? x$mem_tmp : x [L825] 3 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=0] [L828] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=1] [L831] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L831] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L831] EXPR 3 \read(x) [L831] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L831] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L831] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L832] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L833] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L834] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L835] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=1] [L759] 1 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L838] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L764] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L765] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L766] 1 x$flush_delayed = weak$$choice2 [L767] EXPR 1 \read(x) [L767] 1 x$mem_tmp = x [L768] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L768] EXPR 1 \read(x) [L768] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L768] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L769] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L770] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L771] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L772] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L773] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L774] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L775] EXPR 1 \read(x) [L775] 1 __unbuffered_p0_EAX = x [L776] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L776] 1 x = x$flush_delayed ? x$mem_tmp : x [L777] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L782] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L789] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L792] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L795] EXPR 2 x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x [L795] EXPR 2 \read(x) [L795] EXPR 2 x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L795] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L796] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L797] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L798] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L799] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L860] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2124=-3, t2125=-2, t2126=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L862] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L862] RET 0 assume_abort_if_not(main$tmp_guard0) [L864] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L864] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L864] EXPR 0 \read(x) [L864] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L864] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L864] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L865] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L866] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L867] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L868] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2124=-3, t2125=-2, t2126=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L871] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L872] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L873] 0 x$flush_delayed = weak$$choice2 [L874] EXPR 0 \read(x) [L874] 0 x$mem_tmp = x [L875] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L875] EXPR 0 \read(x) [L875] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L875] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L876] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L877] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L878] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L879] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L880] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L881] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L883] EXPR 0 __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX [L883] EXPR 0 \read(*__unbuffered_p2_EAX$read_delayed_var) [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX [L883] EXPR 0 __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX [L883] 0 __unbuffered_p2_EAX = __unbuffered_p2_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p2_EAX$read_delayed_var : __unbuffered_p2_EAX) : __unbuffered_p2_EAX [L884] EXPR 0 \read(x) [L884] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 2) [L885] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L885] EXPR 0 \read(x) [L885] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L885] 0 x = x$flush_delayed ? x$mem_tmp : x [L886] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2124=-3, t2125=-2, t2126=-1, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L888] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=1, __unbuffered_p2_EAX$read_delayed_var={3:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x={3:0}, y=2] - UnprovableResult [Line: 854]: 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: 858]: 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: 856]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 21.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 643 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 643 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 347 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 772 IncrementalHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 95 mSDtfsCounter, 772 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3658occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 560 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 13.9s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 141 ConstructedInterpolants, 0 QuantifiedInterpolants, 2215 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-14 05:22:21,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9246d67-2b20-47be-91ee-83160a4c7ca7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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