./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7 --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 f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:05:30,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:05:30,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:05:30,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:05:30,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:05:30,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:05:30,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:05:30,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:05:30,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:05:30,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:05:30,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:05:30,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:05:30,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:05:30,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:05:30,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:05:30,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:05:30,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:05:30,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:05:30,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:05:30,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:05:30,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:05:30,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:05:30,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:05:30,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:05:30,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:05:30,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:05:30,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:05:30,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:05:31,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:05:31,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:05:31,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:05:31,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:05:31,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:05:31,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:05:31,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:05:31,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:05:31,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:05:31,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:05:31,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:05:31,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:05:31,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:05:31,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:05:31,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:05:31,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:05:31,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:05:31,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:05:31,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:05:31,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:05:31,068 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:05:31,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:05:31,069 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:05:31,069 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:05:31,070 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:05:31,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:05:31,070 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:05:31,071 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:05:31,071 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:05:31,071 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:05:31,071 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:05:31,072 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:05:31,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:05:31,073 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:05:31,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:05:31,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:05:31,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:05:31,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:05:31,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:05:31,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:05:31,075 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:05:31,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:05:31,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:05:31,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:05:31,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:05:31,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:05:31,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:05:31,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:05:31,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:05:31,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:05:31,078 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:05:31,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:05:31,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:05:31,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:05:31,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:05:31,079 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_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2021-11-25 19:05:31,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:05:31,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:05:31,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:05:31,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:05:31,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:05:31,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2021-11-25 19:05:31,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/data/27aa3cda1/9819edc8965c4f279c661ec64aca9c48/FLAG86b2ce56b [2021-11-25 19:05:32,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:05:32,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2021-11-25 19:05:32,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/data/27aa3cda1/9819edc8965c4f279c661ec64aca9c48/FLAG86b2ce56b [2021-11-25 19:05:32,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/data/27aa3cda1/9819edc8965c4f279c661ec64aca9c48 [2021-11-25 19:05:32,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:05:32,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:05:32,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:05:32,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:05:32,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:05:32,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:32" (1/1) ... [2021-11-25 19:05:32,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46452818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:32, skipping insertion in model container [2021-11-25 19:05:32,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:32" (1/1) ... [2021-11-25 19:05:32,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:05:32,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:05:32,936 WARN L230 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_ddbbc37e-4226-46f4-ba96-660cbc6243a3/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2021-11-25 19:05:32,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:05:32,959 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:05:33,019 WARN L230 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_ddbbc37e-4226-46f4-ba96-660cbc6243a3/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2021-11-25 19:05:33,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:05:33,078 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:05:33,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33 WrapperNode [2021-11-25 19:05:33,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:05:33,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:05:33,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:05:33,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:05:33,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,149 INFO L137 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-11-25 19:05:33,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:05:33,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:05:33,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:05:33,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:05:33,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:05:33,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:05:33,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:05:33,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:05:33,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (1/1) ... [2021-11-25 19:05:33,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:05:33,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:33,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:05:33,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:05:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-25 19:05:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-25 19:05:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:05:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:05:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:05:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:05:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:05:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:05:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:05:33,296 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-25 19:05:33,433 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:05:33,435 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:05:33,681 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:05:33,689 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:05:33,689 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:05:33,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:33 BoogieIcfgContainer [2021-11-25 19:05:33,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:05:33,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:05:33,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:05:33,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:05:33,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:05:32" (1/3) ... [2021-11-25 19:05:33,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35edcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:05:33, skipping insertion in model container [2021-11-25 19:05:33,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:33" (2/3) ... [2021-11-25 19:05:33,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35edcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:05:33, skipping insertion in model container [2021-11-25 19:05:33,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:33" (3/3) ... [2021-11-25 19:05:33,704 INFO L111 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2021-11-25 19:05:33,714 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-25 19:05:33,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:05:33,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:05:33,715 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-25 19:05:33,763 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,764 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,764 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,764 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,765 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,765 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,765 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,766 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,767 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,767 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,767 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,768 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,769 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,769 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,769 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,770 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,770 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,771 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,771 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,772 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,772 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,773 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,773 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,774 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,774 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,774 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,774 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,774 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,775 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,775 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,775 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,775 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,776 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,776 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,776 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,776 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,777 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,778 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,778 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,778 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,779 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,779 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,779 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,779 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,780 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,780 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,788 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,788 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,788 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,789 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,789 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,789 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,789 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,790 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,790 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,791 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,791 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,791 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,791 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,793 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,794 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,794 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,795 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,796 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,800 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,801 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,802 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,803 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,804 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,804 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,805 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,811 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,811 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,812 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,812 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,812 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,814 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,817 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,818 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,819 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,819 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,819 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,820 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,820 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,821 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,821 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,821 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,822 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,822 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,822 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,822 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,822 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,823 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,823 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,823 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,824 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,824 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,824 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,825 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,825 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,825 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,826 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,827 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,827 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,827 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,828 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,833 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~z~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,833 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,834 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,834 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,835 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,836 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,838 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,838 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-25 19:05:33,843 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-25 19:05:33,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:05:33,903 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, mAutomataTypeConcurrency=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 [2021-11-25 19:05:33,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-25 19:05:33,943 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-25 19:05:33,957 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 68 transitions, 141 flow [2021-11-25 19:05:33,959 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 68 transitions, 141 flow [2021-11-25 19:05:33,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 68 transitions, 141 flow [2021-11-25 19:05:34,008 INFO L129 PetriNetUnfolder]: 10/79 cut-off events. [2021-11-25 19:05:34,008 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-25 19:05:34,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 10/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 105 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 53. Up to 4 conditions per place. [2021-11-25 19:05:34,017 INFO L116 LiptonReduction]: Number of co-enabled transitions 1120 [2021-11-25 19:05:36,158 INFO L131 LiptonReduction]: Checked pairs total: 780 [2021-11-25 19:05:36,158 INFO L133 LiptonReduction]: Total number of compositions: 58 [2021-11-25 19:05:36,167 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 17 transitions, 39 flow [2021-11-25 19:05:36,179 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 36 states have internal predecessors, (83), 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) [2021-11-25 19:05:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 36 states have internal predecessors, (83), 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) [2021-11-25 19:05:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:05:36,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:36,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 19:05:36,219 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash 439664445, now seen corresponding path program 1 times [2021-11-25 19:05:36,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:36,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489703600] [2021-11-25 19:05:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:36,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:05:36,426 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 19:05:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 19:05:36,509 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 19:05:36,512 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 19:05:36,513 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-25 19:05:36,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-25 19:05:36,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2021-11-25 19:05:36,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:05:36,519 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-25 19:05:36,524 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-25 19:05:36,524 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 19:05:36,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 07:05:36 BasicIcfg [2021-11-25 19:05:36,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 19:05:36,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 19:05:36,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 19:05:36,547 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 19:05:36,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:33" (3/4) ... [2021-11-25 19:05:36,550 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 19:05:36,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbbc37e-4226-46f4-ba96-660cbc6243a3/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 19:05:36,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 19:05:36,593 INFO L158 Benchmark]: Toolchain (without parser) took 4166.84ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 64.7MB in the beginning and 70.5MB in the end (delta: -5.8MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,594 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 19:05:36,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.61ms. Allocated memory is still 107.0MB. Free memory was 64.4MB in the beginning and 71.8MB in the end (delta: -7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.98ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,596 INFO L158 Benchmark]: Boogie Preprocessor took 41.30ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,597 INFO L158 Benchmark]: RCFGBuilder took 497.65ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 57.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,597 INFO L158 Benchmark]: TraceAbstraction took 2853.24ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 57.1MB in the beginning and 72.6MB in the end (delta: -15.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,598 INFO L158 Benchmark]: Witness Printer took 45.38ms. Allocated memory is still 130.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 19:05:36,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.61ms. Allocated memory is still 107.0MB. Free memory was 64.4MB in the beginning and 71.8MB in the end (delta: -7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.98ms. Allocated memory is still 107.0MB. Free memory was 71.8MB in the beginning and 69.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.30ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 68.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.65ms. Allocated memory is still 107.0MB. Free memory was 68.7MB in the beginning and 57.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2853.24ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 57.1MB in the beginning and 72.6MB in the end (delta: -15.4MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 45.38ms. Allocated memory is still 130.0MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 62 PlacesBefore, 15 PlacesAfterwards, 68 TransitionsBefore, 17 TransitionsAfterwards, 1120 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 4 ChoiceCompositions, 58 TotalNumberOfCompositions, 780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 780, positive: 780, positive conditional: 0, positive unconditional: 780, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 679, positive: 679, positive conditional: 0, positive unconditional: 679, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 679, positive: 679, positive conditional: 0, positive unconditional: 679, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 780, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 679, unknown conditional: 0, unknown unconditional: 679] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 pthread_t t; VAL [t={3:0}] [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, pthread_create(&t, 0, thr1, 0)=-1, t={3:0}] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [arg={0:0}, arg={0:0}, i=0, j=1, k=1, x=4294967296, y=4294967301, z=5] [L688] COND FALSE 1 !(i