./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 709520780cec518fe5cb0944264d656602e2dfd1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:29:34,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:29:34,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:29:34,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:29:34,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:29:34,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:29:34,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:29:34,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:29:34,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:29:34,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:29:34,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:29:34,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:29:34,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:29:34,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:29:34,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:29:34,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:29:34,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:29:34,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:29:34,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:29:34,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:29:34,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:29:34,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:29:34,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:29:34,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:29:34,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:29:34,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:29:34,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:29:34,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:29:34,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:29:34,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:29:34,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:29:34,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:29:34,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:29:34,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:29:34,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:29:34,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:29:34,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:29:34,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:29:34,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:29:34,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:29:34,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:29:34,314 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:29:34,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:29:34,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:29:34,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:29:34,360 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:29:34,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:29:34,360 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:29:34,361 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:29:34,361 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:29:34,361 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:29:34,362 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:29:34,370 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:29:34,370 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:29:34,370 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:29:34,371 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:29:34,371 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:29:34,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:29:34,372 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:29:34,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:29:34,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:29:34,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:29:34,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:29:34,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:29:34,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:29:34,374 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:29:34,374 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:29:34,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:29:34,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:29:34,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:29:34,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:29:34,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:29:34,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:29:34,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:29:34,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:29:34,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:29:34,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:29:34,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:29:34,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:29:34,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:29:34,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:29:34,381 INFO L138 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_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709520780cec518fe5cb0944264d656602e2dfd1 [2021-10-13 07:29:34,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:29:34,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:29:34,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:29:34,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:29:34,743 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:29:34,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i [2021-10-13 07:29:34,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/data/33ad0ca5d/26973caa9719425b90f3a8f12e9f5474/FLAG176a91f30 [2021-10-13 07:29:35,416 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:29:35,417 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i [2021-10-13 07:29:35,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/data/33ad0ca5d/26973caa9719425b90f3a8f12e9f5474/FLAG176a91f30 [2021-10-13 07:29:35,701 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/data/33ad0ca5d/26973caa9719425b90f3a8f12e9f5474 [2021-10-13 07:29:35,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:29:35,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:29:35,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:29:35,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:29:35,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:29:35,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:29:35" (1/1) ... [2021-10-13 07:29:35,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc9e425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:35, skipping insertion in model container [2021-10-13 07:29:35,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:29:35" (1/1) ... [2021-10-13 07:29:35,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:29:35,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:29:36,063 WARN L228 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_eba922ce-6f04-4d21-9961-3b7e0fa160ea/sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i[948,961] [2021-10-13 07:29:36,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:29:36,340 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:29:36,367 WARN L228 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_eba922ce-6f04-4d21-9961-3b7e0fa160ea/sv-benchmarks/c/pthread-wmm/mix022_tso.opt.i[948,961] [2021-10-13 07:29:36,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:29:36,558 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:29:36,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36 WrapperNode [2021-10-13 07:29:36,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:29:36,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:29:36,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:29:36,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:29:36,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:29:36,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:29:36,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:29:36,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:29:36,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:29:36,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:29:36,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:29:36,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:29:36,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (1/1) ... [2021-10-13 07:29:36,770 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:29:36,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:29:36,797 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:29:36,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:29:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:29:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 07:29:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:29:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:29:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 07:29:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 07:29:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 07:29:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 07:29:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:29:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 07:29:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:29:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:29:36,866 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 07:29:39,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:29:39,943 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 07:29:39,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:39 BoogieIcfgContainer [2021-10-13 07:29:39,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:29:39,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:29:39,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:29:39,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:29:39,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:29:35" (1/3) ... [2021-10-13 07:29:39,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d88c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:29:39, skipping insertion in model container [2021-10-13 07:29:39,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:36" (2/3) ... [2021-10-13 07:29:39,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2d88c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:29:39, skipping insertion in model container [2021-10-13 07:29:39,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:39" (3/3) ... [2021-10-13 07:29:39,960 INFO L111 eAbstractionObserver]: Analyzing ICFG mix022_tso.opt.i [2021-10-13 07:29:39,971 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 07:29:39,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:29:39,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:29:39,972 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 07:29:40,022 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,023 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,023 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,023 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,024 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,024 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,025 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,026 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,027 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,035 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,036 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,038 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,038 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,038 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,039 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,040 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,050 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,051 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,054 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,055 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,058 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,059 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,070 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,071 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,072 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,073 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,074 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,075 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,093 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,095 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,095 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,096 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,097 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,098 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,098 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,099 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,111 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,111 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:29:40,113 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 07:29:40,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:29:40,187 INFO L339 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:29:40,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-13 07:29:40,205 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 07:29:40,219 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 88 transitions, 186 flow [2021-10-13 07:29:40,222 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 88 transitions, 186 flow [2021-10-13 07:29:40,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 88 transitions, 186 flow [2021-10-13 07:29:40,272 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2021-10-13 07:29:40,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 07:29:40,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2021-10-13 07:29:40,279 INFO L116 LiptonReduction]: Number of co-enabled transitions 1056 [2021-10-13 07:29:51,386 INFO L131 LiptonReduction]: Checked pairs total: 2876 [2021-10-13 07:29:51,386 INFO L133 LiptonReduction]: Total number of compositions: 79 [2021-10-13 07:29:51,405 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2021-10-13 07:29:51,473 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 197 states, 194 states have (on average 2.618556701030928) internal successors, (508), 196 states have internal predecessors, (508), 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) [2021-10-13 07:29:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 194 states have (on average 2.618556701030928) internal successors, (508), 196 states have internal predecessors, (508), 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) [2021-10-13 07:29:51,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:29:51,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:51,490 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:29:51,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:51,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:51,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1212461721, now seen corresponding path program 1 times [2021-10-13 07:29:51,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:51,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835700286] [2021-10-13 07:29:51,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:51,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:51,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:51,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:51,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835700286] [2021-10-13 07:29:51,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835700286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:51,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:51,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 07:29:51,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539621364] [2021-10-13 07:29:51,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:51,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:51,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:51,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:51,970 INFO L87 Difference]: Start difference. First operand has 197 states, 194 states have (on average 2.618556701030928) internal successors, (508), 196 states have internal predecessors, (508), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:29:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:52,062 INFO L93 Difference]: Finished difference Result 167 states and 394 transitions. [2021-10-13 07:29:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:52,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-10-13 07:29:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:52,087 INFO L225 Difference]: With dead ends: 167 [2021-10-13 07:29:52,088 INFO L226 Difference]: Without dead ends: 162 [2021-10-13 07:29:52,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-13 07:29:52,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-10-13 07:29:52,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.391304347826087) internal successors, (385), 161 states have internal predecessors, (385), 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) [2021-10-13 07:29:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 385 transitions. [2021-10-13 07:29:52,179 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 385 transitions. Word has length 5 [2021-10-13 07:29:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:52,180 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 385 transitions. [2021-10-13 07:29:52,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-13 07:29:52,181 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 385 transitions. [2021-10-13 07:29:52,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:29:52,183 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:52,183 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:52,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:29:52,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:52,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:52,186 INFO L82 PathProgramCache]: Analyzing trace with hash -225928947, now seen corresponding path program 1 times [2021-10-13 07:29:52,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:52,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451392258] [2021-10-13 07:29:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:52,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:52,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:52,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451392258] [2021-10-13 07:29:52,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451392258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:52,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:52,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:29:52,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121341006] [2021-10-13 07:29:52,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:29:52,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:29:52,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:29:52,424 INFO L87 Difference]: Start difference. First operand 162 states and 385 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:52,510 INFO L93 Difference]: Finished difference Result 172 states and 388 transitions. [2021-10-13 07:29:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:29:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 07:29:52,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:52,513 INFO L225 Difference]: With dead ends: 172 [2021-10-13 07:29:52,513 INFO L226 Difference]: Without dead ends: 142 [2021-10-13 07:29:52,514 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-13 07:29:52,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-10-13 07:29:52,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3333333333333335) internal successors, (329), 141 states have internal predecessors, (329), 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) [2021-10-13 07:29:52,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 329 transitions. [2021-10-13 07:29:52,525 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 329 transitions. Word has length 8 [2021-10-13 07:29:52,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:52,526 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 329 transitions. [2021-10-13 07:29:52,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 329 transitions. [2021-10-13 07:29:52,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:29:52,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:52,529 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:52,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:29:52,529 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:52,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:52,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1175034794, now seen corresponding path program 1 times [2021-10-13 07:29:52,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:52,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511873315] [2021-10-13 07:29:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:52,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:53,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:53,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511873315] [2021-10-13 07:29:53,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511873315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:53,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:53,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:29:53,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079246329] [2021-10-13 07:29:53,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:29:53,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:53,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:29:53,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:29:53,170 INFO L87 Difference]: Start difference. First operand 142 states and 329 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:53,611 INFO L93 Difference]: Finished difference Result 180 states and 412 transitions. [2021-10-13 07:29:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 07:29:53,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 07:29:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:53,615 INFO L225 Difference]: With dead ends: 180 [2021-10-13 07:29:53,615 INFO L226 Difference]: Without dead ends: 160 [2021-10-13 07:29:53,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 258.3ms TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:29:53,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-13 07:29:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2021-10-13 07:29:53,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.3548387096774195) internal successors, (365), 155 states have internal predecessors, (365), 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) [2021-10-13 07:29:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 365 transitions. [2021-10-13 07:29:53,629 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 365 transitions. Word has length 10 [2021-10-13 07:29:53,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:53,630 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 365 transitions. [2021-10-13 07:29:53,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,630 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 365 transitions. [2021-10-13 07:29:53,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:29:53,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:53,632 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:53,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:29:53,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:53,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1227764864, now seen corresponding path program 2 times [2021-10-13 07:29:53,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:53,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554910002] [2021-10-13 07:29:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:53,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:53,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:53,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554910002] [2021-10-13 07:29:53,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554910002] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:53,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:53,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:29:53,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395179975] [2021-10-13 07:29:53,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:29:53,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:53,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:29:53,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:29:53,787 INFO L87 Difference]: Start difference. First operand 156 states and 365 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:53,818 INFO L93 Difference]: Finished difference Result 116 states and 224 transitions. [2021-10-13 07:29:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:29:53,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 07:29:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:53,820 INFO L225 Difference]: With dead ends: 116 [2021-10-13 07:29:53,820 INFO L226 Difference]: Without dead ends: 80 [2021-10-13 07:29:53,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:29:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-13 07:29:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2021-10-13 07:29:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.7792207792207793) internal successors, (137), 77 states have internal predecessors, (137), 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) [2021-10-13 07:29:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 137 transitions. [2021-10-13 07:29:53,826 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 137 transitions. Word has length 10 [2021-10-13 07:29:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:53,826 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 137 transitions. [2021-10-13 07:29:53,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 137 transitions. [2021-10-13 07:29:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:29:53,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:53,828 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:53,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:29:53,829 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:53,830 INFO L82 PathProgramCache]: Analyzing trace with hash -374875574, now seen corresponding path program 1 times [2021-10-13 07:29:53,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:53,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054344717] [2021-10-13 07:29:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:53,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:53,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:53,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054344717] [2021-10-13 07:29:53,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054344717] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:53,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:53,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:29:53,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053196548] [2021-10-13 07:29:53,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:29:53,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:29:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:29:53,991 INFO L87 Difference]: Start difference. First operand 78 states and 137 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 07:29:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:54,025 INFO L93 Difference]: Finished difference Result 56 states and 91 transitions. [2021-10-13 07:29:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:29:54,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-13 07:29:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:54,027 INFO L225 Difference]: With dead ends: 56 [2021-10-13 07:29:54,027 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 07:29:54,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 07:29:54,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-13 07:29:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.6222222222222222) internal successors, (73), 45 states have internal predecessors, (73), 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) [2021-10-13 07:29:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 73 transitions. [2021-10-13 07:29:54,031 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 73 transitions. Word has length 13 [2021-10-13 07:29:54,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:54,032 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 73 transitions. [2021-10-13 07:29:54,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-10-13 07:29:54,032 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 73 transitions. [2021-10-13 07:29:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:29:54,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:54,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:54,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:29:54,035 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:54,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1005309845, now seen corresponding path program 1 times [2021-10-13 07:29:54,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:54,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65759861] [2021-10-13 07:29:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:54,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:54,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:54,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65759861] [2021-10-13 07:29:54,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65759861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:54,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:54,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:29:54,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29561765] [2021-10-13 07:29:54,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:29:54,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:54,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:29:54,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:29:54,202 INFO L87 Difference]: Start difference. First operand 46 states and 73 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 07:29:54,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:54,241 INFO L93 Difference]: Finished difference Result 61 states and 93 transitions. [2021-10-13 07:29:54,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:29:54,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2021-10-13 07:29:54,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:54,242 INFO L225 Difference]: With dead ends: 61 [2021-10-13 07:29:54,242 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 07:29:54,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:54,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 07:29:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-13 07:29:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 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) [2021-10-13 07:29:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-10-13 07:29:54,247 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 17 [2021-10-13 07:29:54,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:54,247 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-13 07:29:54,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-10-13 07:29:54,248 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-10-13 07:29:54,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:29:54,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:54,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:54,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:29:54,250 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:54,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:54,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1481223903, now seen corresponding path program 2 times [2021-10-13 07:29:54,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:54,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913831456] [2021-10-13 07:29:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:54,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:54,555 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:54,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913831456] [2021-10-13 07:29:54,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913831456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:54,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:54,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:29:54,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411810011] [2021-10-13 07:29:54,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:29:54,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:54,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:29:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:29:54,558 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-13 07:29:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:54,688 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-10-13 07:29:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:29:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2021-10-13 07:29:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:54,690 INFO L225 Difference]: With dead ends: 35 [2021-10-13 07:29:54,690 INFO L226 Difference]: Without dead ends: 22 [2021-10-13 07:29:54,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 90.4ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:29:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-13 07:29:54,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-13 07:29:54,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:54,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-10-13 07:29:54,692 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2021-10-13 07:29:54,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:54,692 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-10-13 07:29:54,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-13 07:29:54,693 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-10-13 07:29:54,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:29:54,693 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:54,693 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:54,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:29:54,694 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:29:54,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:54,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1229417247, now seen corresponding path program 3 times [2021-10-13 07:29:54,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:54,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18090142] [2021-10-13 07:29:54,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:54,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:29:54,811 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:29:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:29:54,961 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:29:54,961 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:29:54,962 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:29:54,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:29:54,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 07:29:54,964 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 07:29:54,965 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:29:54,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:29:54,972 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 07:29:54,972 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:29:55,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:29:55 BasicIcfg [2021-10-13 07:29:55,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:29:55,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:29:55,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:29:55,076 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:29:55,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:39" (3/4) ... [2021-10-13 07:29:55,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:29:55,194 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:29:55,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:29:55,196 INFO L168 Benchmark]: Toolchain (without parser) took 19489.82 ms. Allocated memory was 86.0 MB in the beginning and 201.3 MB in the end (delta: 115.3 MB). Free memory was 46.2 MB in the beginning and 111.1 MB in the end (delta: -64.9 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,196 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 49.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 852.98 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.0 MB in the beginning and 76.4 MB in the end (delta: -30.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.31 ms. Allocated memory is still 113.2 MB. Free memory was 76.4 MB in the beginning and 73.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,198 INFO L168 Benchmark]: Boogie Preprocessor took 64.66 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 70.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,198 INFO L168 Benchmark]: RCFGBuilder took 3198.08 ms. Allocated memory is still 113.2 MB. Free memory was 70.7 MB in the beginning and 68.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,199 INFO L168 Benchmark]: TraceAbstraction took 15125.58 ms. Allocated memory was 113.2 MB in the beginning and 201.3 MB in the end (delta: 88.1 MB). Free memory was 67.5 MB in the beginning and 123.7 MB in the end (delta: -56.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,199 INFO L168 Benchmark]: Witness Printer took 118.24 ms. Allocated memory is still 201.3 MB. Free memory was 123.7 MB in the beginning and 111.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:55,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 49.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 852.98 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.0 MB in the beginning and 76.4 MB in the end (delta: -30.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.31 ms. Allocated memory is still 113.2 MB. Free memory was 76.4 MB in the beginning and 73.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.66 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 70.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3198.08 ms. Allocated memory is still 113.2 MB. Free memory was 70.7 MB in the beginning and 68.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15125.58 ms. Allocated memory was 113.2 MB in the beginning and 201.3 MB in the end (delta: 88.1 MB). Free memory was 67.5 MB in the beginning and 123.7 MB in the end (delta: -56.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * Witness Printer took 118.24 ms. Allocated memory is still 201.3 MB. Free memory was 123.7 MB in the beginning and 111.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11164.9ms, 93 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 22 TransitionsAfterwards, 1056 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 79 TotalNumberOfCompositions, 2876 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1281, positive: 1160, positive conditional: 0, positive unconditional: 1160, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 729, positive: 694, positive conditional: 0, positive unconditional: 694, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 729, positive: 676, positive conditional: 0, positive unconditional: 676, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 707, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 664, negative conditional: 0, negative unconditional: 664, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1281, positive: 466, positive conditional: 0, positive unconditional: 466, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 729, unknown conditional: 0, unknown unconditional: 729] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t599; [L811] FCALL, FORK 0 pthread_create(&t599, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L812] 0 pthread_t t600; [L813] FCALL, FORK 0 pthread_create(&t600, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 x$flush_delayed = weak$$choice2 [L772] 2 x$mem_tmp = x [L773] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L773] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1 [L773] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L773] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L774] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L774] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L775] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L775] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L776] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L776] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L777] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L778] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L779] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EAX = x [L781] EXPR 2 x$flush_delayed ? x$mem_tmp : x [L781] 2 x = x$flush_delayed ? x$mem_tmp : x [L782] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L785] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L738] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L788] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L788] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L789] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L792] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] [L3] COND FALSE 0 !(!cond) [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L826] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L827] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L828] 0 x$flush_delayed = weak$$choice2 [L829] 0 x$mem_tmp = x [L830] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L830] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L831] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L831] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L832] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L832] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L833] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L833] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L834] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L834] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L835] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L835] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L836] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L836] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L838] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L838] 0 x = x$flush_delayed ? x$mem_tmp : x [L839] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=52, weak$$choice2=255, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 813]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 107 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 14789.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 25.9ms, AutomataDifference: 932.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11285.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 120 SDtfs, 173 SDslu, 240 SDs, 0 SdLazy, 187 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 436.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 435.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 111.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 57.7ms SsaConstructionTime, 785.7ms SatisfiabilityAnalysisTime, 1106.9ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:29:55,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eba922ce-6f04-4d21-9961-3b7e0fa160ea/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...