./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix050.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix050.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire --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 a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:02,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:03,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:23:03,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:03,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:03,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:03,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:03,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:03,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:03,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:03,138 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:03,139 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:03,139 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:03,140 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:03,140 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:03,141 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:03,141 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:03,142 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:03,142 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:03,143 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:03,143 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:03,144 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:03,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:03,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:23:03,146 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:03,146 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:03,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:03,147 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:03,147 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:23:03,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:03,148 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:23:03,148 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:03,149 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:23:03,149 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:03,149 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:03,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:03,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:03,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:03,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:03,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:03,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:23:03,151 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:03,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:03,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:03,152 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:23:03,152 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:03,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:03,152 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d [2023-11-23 21:23:03,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:03,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:03,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:03,486 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:03,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:03,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-23 21:23:06,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:06,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:06,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/sv-benchmarks/c/pthread-wmm/mix050.i [2023-11-23 21:23:07,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/data/77511fe45/dc4e9aa99e574cafa6fc123b936f9e99/FLAG4048f1453 [2023-11-23 21:23:07,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/data/77511fe45/dc4e9aa99e574cafa6fc123b936f9e99 [2023-11-23 21:23:07,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:07,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:07,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:07,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:07,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:07,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d49bd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07, skipping insertion in model container [2023-11-23 21:23:07,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:07,306 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/sv-benchmarks/c/pthread-wmm/mix050.i[940,953] [2023-11-23 21:23:07,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:07,647 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:07,666 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/sv-benchmarks/c/pthread-wmm/mix050.i[940,953] [2023-11-23 21:23:07,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:07,802 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:07,802 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:07,811 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:07,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07 WrapperNode [2023-11-23 21:23:07,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:07,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:07,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:07,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:07,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,894 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2023-11-23 21:23:07,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:07,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:07,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:07,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:07,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:07,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:07,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:07,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:07,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (1/1) ... [2023-11-23 21:23:07,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:08,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:08,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:08,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:08,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:23:08,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 21:23:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:23:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:23:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-23 21:23:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-23 21:23:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-23 21:23:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-23 21:23:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-23 21:23:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-23 21:23:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-23 21:23:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-23 21:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 21:23:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:08,083 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:23:08,289 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:08,291 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:08,808 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:09,058 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:09,058 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:23:09,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:09 BoogieIcfgContainer [2023-11-23 21:23:09,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:09,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:09,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:09,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:09,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:07" (1/3) ... [2023-11-23 21:23:09,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f084e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:09, skipping insertion in model container [2023-11-23 21:23:09,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:07" (2/3) ... [2023-11-23 21:23:09,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f084e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:09, skipping insertion in model container [2023-11-23 21:23:09,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:09" (3/3) ... [2023-11-23 21:23:09,069 INFO L112 eAbstractionObserver]: Analyzing ICFG mix050.i [2023-11-23 21:23:09,080 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:23:09,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:09,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 21:23:09,093 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:23:09,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:23:09,189 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 48 transitions, 112 flow [2023-11-23 21:23:10,606 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27668 states, 27665 states have (on average 4.336454003253208) internal successors, (119968), 27667 states have internal predecessors, (119968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:10,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:10,637 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@5547fea5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:10,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-23 21:23:10,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 27668 states, 27665 states have (on average 4.336454003253208) internal successors, (119968), 27667 states have internal predecessors, (119968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:23:10,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:10,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:23:10,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:10,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:10,742 INFO L85 PathProgramCache]: Analyzing trace with hash 12775458, now seen corresponding path program 1 times [2023-11-23 21:23:10,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:10,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230746511] [2023-11-23 21:23:10,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:11,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:11,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230746511] [2023-11-23 21:23:11,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230746511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:11,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:11,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:23:11,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178812955] [2023-11-23 21:23:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:11,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:11,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:11,655 INFO L87 Difference]: Start difference. First operand has 27668 states, 27665 states have (on average 4.336454003253208) internal successors, (119968), 27667 states have internal predecessors, (119968), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:12,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:12,464 INFO L93 Difference]: Finished difference Result 23781 states and 101626 transitions. [2023-11-23 21:23:12,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:12,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-23 21:23:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:13,037 INFO L225 Difference]: With dead ends: 23781 [2023-11-23 21:23:13,038 INFO L226 Difference]: Without dead ends: 22409 [2023-11-23 21:23:13,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:13,043 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:13,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 36 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:13,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22409 states. [2023-11-23 21:23:14,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22409 to 22409. [2023-11-23 21:23:14,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22409 states, 22408 states have (on average 4.285969296679757) internal successors, (96040), 22408 states have internal predecessors, (96040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22409 states to 22409 states and 96040 transitions. [2023-11-23 21:23:15,068 INFO L78 Accepts]: Start accepts. Automaton has 22409 states and 96040 transitions. Word has length 4 [2023-11-23 21:23:15,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:15,069 INFO L495 AbstractCegarLoop]: Abstraction has 22409 states and 96040 transitions. [2023-11-23 21:23:15,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:15,070 INFO L276 IsEmpty]: Start isEmpty. Operand 22409 states and 96040 transitions. [2023-11-23 21:23:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 21:23:15,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:15,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:15,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:23:15,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:15,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash 442070617, now seen corresponding path program 1 times [2023-11-23 21:23:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:15,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699273758] [2023-11-23 21:23:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:15,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:15,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:15,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699273758] [2023-11-23 21:23:15,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699273758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:15,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:15,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347415119] [2023-11-23 21:23:15,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:15,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:23:15,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:23:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:23:15,573 INFO L87 Difference]: Start difference. First operand 22409 states and 96040 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:16,342 INFO L93 Difference]: Finished difference Result 20435 states and 83022 transitions. [2023-11-23 21:23:16,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:23:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2023-11-23 21:23:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:16,476 INFO L225 Difference]: With dead ends: 20435 [2023-11-23 21:23:16,477 INFO L226 Difference]: Without dead ends: 18034 [2023-11-23 21:23:16,477 INFO L412 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 [2023-11-23 21:23:16,479 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 76 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:16,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 43 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18034 states. [2023-11-23 21:23:17,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18034 to 18034. [2023-11-23 21:23:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18034 states, 18033 states have (on average 4.112737758553762) internal successors, (74165), 18033 states have internal predecessors, (74165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:17,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18034 states to 18034 states and 74165 transitions. [2023-11-23 21:23:17,633 INFO L78 Accepts]: Start accepts. Automaton has 18034 states and 74165 transitions. Word has length 16 [2023-11-23 21:23:17,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:17,634 INFO L495 AbstractCegarLoop]: Abstraction has 18034 states and 74165 transitions. [2023-11-23 21:23:17,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 18034 states and 74165 transitions. [2023-11-23 21:23:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:23:17,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:17,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:17,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:23:17,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:17,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 692578437, now seen corresponding path program 1 times [2023-11-23 21:23:17,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:17,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416079113] [2023-11-23 21:23:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:17,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:17,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:17,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:17,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416079113] [2023-11-23 21:23:17,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416079113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:17,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:17,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:23:17,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056064729] [2023-11-23 21:23:17,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:17,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:23:17,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:17,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:23:17,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:23:17,899 INFO L87 Difference]: Start difference. First operand 18034 states and 74165 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:18,445 INFO L93 Difference]: Finished difference Result 12810 states and 49397 transitions. [2023-11-23 21:23:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:23:18,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-23 21:23:18,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:18,512 INFO L225 Difference]: With dead ends: 12810 [2023-11-23 21:23:18,512 INFO L226 Difference]: Without dead ends: 11034 [2023-11-23 21:23:18,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:23:18,514 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 128 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:18,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 56 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:18,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11034 states. [2023-11-23 21:23:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11034 to 11034. [2023-11-23 21:23:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11034 states, 11033 states have (on average 3.867035257862775) internal successors, (42665), 11033 states have internal predecessors, (42665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:19,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11034 states to 11034 states and 42665 transitions. [2023-11-23 21:23:19,111 INFO L78 Accepts]: Start accepts. Automaton has 11034 states and 42665 transitions. Word has length 21 [2023-11-23 21:23:19,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:19,113 INFO L495 AbstractCegarLoop]: Abstraction has 11034 states and 42665 transitions. [2023-11-23 21:23:19,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 11034 states and 42665 transitions. [2023-11-23 21:23:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:23:19,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:19,150 INFO L195 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] [2023-11-23 21:23:19,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:19,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:19,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:19,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2103828878, now seen corresponding path program 1 times [2023-11-23 21:23:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75812025] [2023-11-23 21:23:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:19,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:19,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75812025] [2023-11-23 21:23:19,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75812025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:19,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:19,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:23:19,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719003318] [2023-11-23 21:23:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:19,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:23:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:23:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:23:19,513 INFO L87 Difference]: Start difference. First operand 11034 states and 42665 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:19,853 INFO L93 Difference]: Finished difference Result 7610 states and 28697 transitions. [2023-11-23 21:23:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:23:19,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2023-11-23 21:23:19,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:19,900 INFO L225 Difference]: With dead ends: 7610 [2023-11-23 21:23:19,900 INFO L226 Difference]: Without dead ends: 6834 [2023-11-23 21:23:19,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:23:19,902 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 210 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:19,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 63 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6834 states. [2023-11-23 21:23:20,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6834 to 6834. [2023-11-23 21:23:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 6833 states have (on average 3.785306600321967) internal successors, (25865), 6833 states have internal predecessors, (25865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 25865 transitions. [2023-11-23 21:23:20,167 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 25865 transitions. Word has length 26 [2023-11-23 21:23:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:20,168 INFO L495 AbstractCegarLoop]: Abstraction has 6834 states and 25865 transitions. [2023-11-23 21:23:20,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 25865 transitions. [2023-11-23 21:23:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:23:20,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:20,198 INFO L195 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, 1] [2023-11-23 21:23:20,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:23:20,198 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:20,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:20,199 INFO L85 PathProgramCache]: Analyzing trace with hash -65722441, now seen corresponding path program 1 times [2023-11-23 21:23:20,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:20,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700663901] [2023-11-23 21:23:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:20,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:20,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:20,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700663901] [2023-11-23 21:23:20,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700663901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:20,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:20,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:23:20,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132040027] [2023-11-23 21:23:20,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:20,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:23:20,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:20,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:23:20,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:23:20,805 INFO L87 Difference]: Start difference. First operand 6834 states and 25865 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:21,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:21,114 INFO L93 Difference]: Finished difference Result 5890 states and 22537 transitions. [2023-11-23 21:23:21,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:23:21,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2023-11-23 21:23:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:21,146 INFO L225 Difference]: With dead ends: 5890 [2023-11-23 21:23:21,147 INFO L226 Difference]: Without dead ends: 5714 [2023-11-23 21:23:21,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:23:21,148 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 229 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:21,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 52 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5714 states. [2023-11-23 21:23:21,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5714 to 5714. [2023-11-23 21:23:21,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 5713 states have (on average 3.8412392788377385) internal successors, (21945), 5713 states have internal predecessors, (21945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 21945 transitions. [2023-11-23 21:23:21,348 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 21945 transitions. Word has length 31 [2023-11-23 21:23:21,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:21,349 INFO L495 AbstractCegarLoop]: Abstraction has 5714 states and 21945 transitions. [2023-11-23 21:23:21,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 21945 transitions. [2023-11-23 21:23:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:23:21,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:21,368 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:23:21,369 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:21,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash 41311374, now seen corresponding path program 1 times [2023-11-23 21:23:21,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:21,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213720467] [2023-11-23 21:23:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:23,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213720467] [2023-11-23 21:23:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213720467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:23,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:23,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:23:23,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386903292] [2023-11-23 21:23:23,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:23,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:23:23,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:23,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:23:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:23:23,364 INFO L87 Difference]: Start difference. First operand 5714 states and 21945 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:24,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:24,013 INFO L93 Difference]: Finished difference Result 6970 states and 26455 transitions. [2023-11-23 21:23:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:23:24,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 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 36 [2023-11-23 21:23:24,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:24,048 INFO L225 Difference]: With dead ends: 6970 [2023-11-23 21:23:24,048 INFO L226 Difference]: Without dead ends: 6122 [2023-11-23 21:23:24,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:23:24,049 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 127 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:24,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 271 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:23:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2023-11-23 21:23:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 5330. [2023-11-23 21:23:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5330 states, 5329 states have (on average 3.8027772565209235) internal successors, (20265), 5329 states have internal predecessors, (20265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5330 states to 5330 states and 20265 transitions. [2023-11-23 21:23:24,331 INFO L78 Accepts]: Start accepts. Automaton has 5330 states and 20265 transitions. Word has length 36 [2023-11-23 21:23:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:24,332 INFO L495 AbstractCegarLoop]: Abstraction has 5330 states and 20265 transitions. [2023-11-23 21:23:24,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 5330 states and 20265 transitions. [2023-11-23 21:23:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:23:24,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:24,351 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:24,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:23:24,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:24,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash -762765546, now seen corresponding path program 2 times [2023-11-23 21:23:24,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:24,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221875478] [2023-11-23 21:23:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:24,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:24,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221875478] [2023-11-23 21:23:24,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221875478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:24,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:24,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:23:24,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362846114] [2023-11-23 21:23:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:24,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:23:24,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:23:24,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:23:24,770 INFO L87 Difference]: Start difference. First operand 5330 states and 20265 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:25,080 INFO L93 Difference]: Finished difference Result 7274 states and 27475 transitions. [2023-11-23 21:23:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:23:25,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2023-11-23 21:23:25,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:25,111 INFO L225 Difference]: With dead ends: 7274 [2023-11-23 21:23:25,111 INFO L226 Difference]: Without dead ends: 5986 [2023-11-23 21:23:25,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:23:25,115 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 56 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:25,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 140 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5986 states. [2023-11-23 21:23:25,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5986 to 4634. [2023-11-23 21:23:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4634 states, 4633 states have (on average 3.749838117850205) internal successors, (17373), 4633 states have internal predecessors, (17373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4634 states to 4634 states and 17373 transitions. [2023-11-23 21:23:25,281 INFO L78 Accepts]: Start accepts. Automaton has 4634 states and 17373 transitions. Word has length 36 [2023-11-23 21:23:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:25,282 INFO L495 AbstractCegarLoop]: Abstraction has 4634 states and 17373 transitions. [2023-11-23 21:23:25,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4634 states and 17373 transitions. [2023-11-23 21:23:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:23:25,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:25,297 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:25,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:23:25,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:25,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash -304083954, now seen corresponding path program 3 times [2023-11-23 21:23:25,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512060570] [2023-11-23 21:23:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:23:25,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:25,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512060570] [2023-11-23 21:23:25,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512060570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:25,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:25,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:23:25,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099935550] [2023-11-23 21:23:25,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:25,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:23:25,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:23:25,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:23:25,728 INFO L87 Difference]: Start difference. First operand 4634 states and 17373 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:26,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:26,094 INFO L93 Difference]: Finished difference Result 6346 states and 23541 transitions. [2023-11-23 21:23:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:23:26,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2023-11-23 21:23:26,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:26,122 INFO L225 Difference]: With dead ends: 6346 [2023-11-23 21:23:26,122 INFO L226 Difference]: Without dead ends: 4554 [2023-11-23 21:23:26,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:23:26,124 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 55 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:26,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 136 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:23:26,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2023-11-23 21:23:26,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 3434. [2023-11-23 21:23:26,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3433 states have (on average 3.6824934459656276) internal successors, (12642), 3433 states have internal predecessors, (12642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 12642 transitions. [2023-11-23 21:23:26,285 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 12642 transitions. Word has length 36 [2023-11-23 21:23:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:26,285 INFO L495 AbstractCegarLoop]: Abstraction has 3434 states and 12642 transitions. [2023-11-23 21:23:26,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:23:26,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 12642 transitions. [2023-11-23 21:23:26,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:23:26,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:26,299 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:26,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:23:26,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-23 21:23:26,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:26,301 INFO L85 PathProgramCache]: Analyzing trace with hash -740367530, now seen corresponding path program 4 times [2023-11-23 21:23:26,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:26,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135147639] [2023-11-23 21:23:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:26,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:23:26,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:23:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:23:26,509 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:23:26,509 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:23:26,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-11-23 21:23:26,512 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-11-23 21:23:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-23 21:23:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-11-23 21:23:26,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-11-23 21:23:26,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2023-11-23 21:23:26,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-11-23 21:23:26,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:23:26,518 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2023-11-23 21:23:26,524 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:23:26,524 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:23:26,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 21:23:26,607 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-23 21:23:26,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-23 21:23:26,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-23 21:23:26,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:23:26 BasicIcfg [2023-11-23 21:23:26,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:23:26,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:23:26,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:23:26,655 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:23:26,656 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:09" (3/4) ... [2023-11-23 21:23:26,656 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:23:26,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-11-23 21:23:26,719 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated [2023-11-23 21:23:26,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-23 21:23:26,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-23 21:23:26,825 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:23:26,825 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:23:26,826 INFO L158 Benchmark]: Toolchain (without parser) took 19790.27ms. Allocated memory was 155.2MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 105.5MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 673.6MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,826 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:23:26,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 774.25ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 80.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.50ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 78.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,827 INFO L158 Benchmark]: Boogie Preprocessor took 91.48ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,828 INFO L158 Benchmark]: RCFGBuilder took 1072.02ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 75.9MB in the beginning and 135.8MB in the end (delta: -59.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,828 INFO L158 Benchmark]: TraceAbstraction took 17592.29ms. Allocated memory was 201.3MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 134.8MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 636.8MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,829 INFO L158 Benchmark]: Witness Printer took 170.69ms. Allocated memory is still 9.4GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:23:26,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 774.25ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 80.7MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.50ms. Allocated memory is still 155.2MB. Free memory was 80.7MB in the beginning and 78.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.48ms. Allocated memory is still 155.2MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1072.02ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 75.9MB in the beginning and 135.8MB in the end (delta: -59.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 17592.29ms. Allocated memory was 201.3MB in the beginning and 9.4GB in the end (delta: 9.2GB). Free memory was 134.8MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 636.8MB. Max. memory is 16.1GB. * Witness Printer took 170.69ms. Allocated memory is still 9.4GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 18]: 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_p1_EAX = 0; [L716] 0 int __unbuffered_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int a = 0; [L721] 0 _Bool a$flush_delayed; [L722] 0 int a$mem_tmp; [L723] 0 _Bool a$r_buff0_thd0; [L724] 0 _Bool a$r_buff0_thd1; [L725] 0 _Bool a$r_buff0_thd2; [L726] 0 _Bool a$r_buff0_thd3; [L727] 0 _Bool a$r_buff0_thd4; [L728] 0 _Bool a$r_buff1_thd0; [L729] 0 _Bool a$r_buff1_thd1; [L730] 0 _Bool a$r_buff1_thd2; [L731] 0 _Bool a$r_buff1_thd3; [L732] 0 _Bool a$r_buff1_thd4; [L733] 0 _Bool a$read_delayed; [L734] 0 int *a$read_delayed_var; [L735] 0 int a$w_buff0; [L736] 0 _Bool a$w_buff0_used; [L737] 0 int a$w_buff1; [L738] 0 _Bool a$w_buff1_used; [L739] 0 _Bool main$tmp_guard0; [L740] 0 _Bool main$tmp_guard1; [L742] 0 int x = 0; [L744] 0 int y = 0; [L746] 0 int z = 0; [L747] 0 _Bool weak$$choice0; [L748] 0 _Bool weak$$choice2; [L863] 0 pthread_t t1321; [L864] FCALL, FORK 0 pthread_create(&t1321, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, t1321={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L752] 1 a$w_buff1 = a$w_buff0 [L753] 1 a$w_buff0 = 1 [L754] 1 a$w_buff1_used = a$w_buff0_used [L755] 1 a$w_buff0_used = (_Bool)1 [L756] CALL 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L756] RET 1 __VERIFIER_assert(!(a$w_buff1_used && a$w_buff0_used)) [L757] 1 a$r_buff1_thd0 = a$r_buff0_thd0 [L758] 1 a$r_buff1_thd1 = a$r_buff0_thd1 [L759] 1 a$r_buff1_thd2 = a$r_buff0_thd2 [L760] 1 a$r_buff1_thd3 = a$r_buff0_thd3 [L761] 1 a$r_buff1_thd4 = a$r_buff0_thd4 [L762] 1 a$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L765] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L865] 0 pthread_t t1322; [L866] FCALL, FORK 0 pthread_create(&t1322, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0] [L867] 0 pthread_t t1323; [L782] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L788] 2 a = a$w_buff0_used && a$r_buff0_thd2 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd2 ? a$w_buff1 : a) [L789] 2 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$w_buff0_used [L790] 2 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$w_buff1_used [L791] 2 a$r_buff0_thd2 = a$w_buff0_used && a$r_buff0_thd2 ? (_Bool)0 : a$r_buff0_thd2 [L792] 2 a$r_buff1_thd2 = a$w_buff0_used && a$r_buff0_thd2 || a$w_buff1_used && a$r_buff1_thd2 ? (_Bool)0 : a$r_buff1_thd2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L868] FCALL, FORK 0 pthread_create(&t1323, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, t1323={7:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0] [L869] 0 pthread_t t1324; [L802] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L870] FCALL, FORK 0 pthread_create(&t1324, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, t1323={7:0}, t1324={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L805] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L808] 3 a = a$w_buff0_used && a$r_buff0_thd3 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd3 ? a$w_buff1 : a) [L809] 3 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$w_buff0_used [L810] 3 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$w_buff1_used [L811] 3 a$r_buff0_thd3 = a$w_buff0_used && a$r_buff0_thd3 ? (_Bool)0 : a$r_buff0_thd3 [L812] 3 a$r_buff1_thd3 = a$w_buff0_used && a$r_buff0_thd3 || a$w_buff1_used && a$r_buff1_thd3 ? (_Bool)0 : a$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L815] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0] [L822] 4 z = 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1] [L825] 4 weak$$choice0 = __VERIFIER_nondet_bool() [L826] 4 weak$$choice2 = __VERIFIER_nondet_bool() [L827] 4 a$flush_delayed = weak$$choice2 [L828] 4 a$mem_tmp = a [L829] 4 a = !a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff1) [L830] 4 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : a$w_buff0)) [L831] 4 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff1 : a$w_buff1)) [L832] 4 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used)) [L833] 4 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L834] 4 a$r_buff0_thd4 = weak$$choice2 ? a$r_buff0_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff0_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4)) [L835] 4 a$r_buff1_thd4 = weak$$choice2 ? a$r_buff1_thd4 : (!a$w_buff0_used || !a$r_buff0_thd4 && !a$w_buff1_used || !a$r_buff0_thd4 && !a$r_buff1_thd4 ? a$r_buff1_thd4 : (a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : (_Bool)0)) [L836] 4 __unbuffered_p3_EAX = a [L837] 4 a = a$flush_delayed ? a$mem_tmp : a [L838] 4 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=1, a$w_buff1=0, a$w_buff1_used=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L768] 1 a = a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd1 ? a$w_buff1 : a) [L769] 1 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used [L770] 1 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$w_buff1_used [L771] 1 a$r_buff0_thd1 = a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1 [L772] 1 a$r_buff1_thd1 = a$w_buff0_used && a$r_buff0_thd1 || a$w_buff1_used && a$r_buff1_thd1 ? (_Bool)0 : a$r_buff1_thd1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L775] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L841] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L842] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L843] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L844] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L845] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L848] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L872] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, t1323={7:0}, t1324={3:0}, weak$$choice2=1, x=1, y=1, z=1] [L874] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L874] RET 0 assume_abort_if_not(main$tmp_guard0) [L876] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L877] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L878] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L879] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L880] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, t1323={7:0}, t1324={3:0}, weak$$choice2=1, x=1, y=1, z=1] [L883] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) VAL [__unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1321={5:0}, t1322={6:0}, t1323={7:0}, t1324={3:0}, weak$$choice2=1, x=1, y=1, z=1] [L885] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] [L18] 0 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=1, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=1, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice2=1, x=1, y=1, z=1] - UnprovableResult [Line: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 868]: 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: 870]: 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: 866]: 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: 864]: 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 9 procedures, 81 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 17.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.3s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 910 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 910 mSDsluCounter, 797 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 607 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1195 IncrementalHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 190 mSDtfsCounter, 1195 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27668occurred in iteration=0, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 3264 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 242 NumberOfCodeBlocks, 242 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 1298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:23:26,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2212e2f5-a1a6-4159-a976-204678b61345/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE