./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs --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 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:42:54,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:42:54,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:42:54,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:42:54,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:42:54,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:42:54,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:42:54,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:42:54,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:42:54,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:42:54,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:42:54,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:42:54,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:42:54,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:42:54,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:42:54,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:42:54,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:42:54,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:42:54,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:42:54,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:42:54,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:42:54,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:42:54,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:42:54,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:42:54,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:42:54,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:42:54,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:42:54,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:42:54,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:42:54,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:42:54,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:42:54,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:42:54,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:42:54,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:42:54,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:42:54,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:42:54,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:42:54,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:42:54,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:42:54,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:42:54,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:42:54,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 15:42:54,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:42:54,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:42:54,664 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:42:54,664 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:42:54,665 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:42:54,665 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:42:54,666 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:42:54,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:42:54,666 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:42:54,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:42:54,674 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:42:54,674 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:42:54,675 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:42:54,675 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:42:54,675 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:42:54,676 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:42:54,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:42:54,677 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:42:54,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:42:54,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:42:54,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:42:54,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:42:54,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:42:54,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:42:54,679 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:42:54,679 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:42:54,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:42:54,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:42:54,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:42:54,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:42:54,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:42:54,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:42:54,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:42:54,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:42:54,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:42:54,684 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:42:54,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:42:54,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:42:54,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:42:54,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:42:54,686 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_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 [2021-11-19 15:42:55,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:42:55,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:42:55,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:42:55,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:42:55,089 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:42:55,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2021-11-19 15:42:55,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/data/f32feffd7/1bf24f868be943bba092bffc3abf9c26/FLAG08500599e [2021-11-19 15:42:55,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:42:55,951 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2021-11-19 15:42:55,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/data/f32feffd7/1bf24f868be943bba092bffc3abf9c26/FLAG08500599e [2021-11-19 15:42:56,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/data/f32feffd7/1bf24f868be943bba092bffc3abf9c26 [2021-11-19 15:42:56,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:42:56,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:42:56,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:42:56,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:42:56,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:42:56,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:56" (1/1) ... [2021-11-19 15:42:56,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db96373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:56, skipping insertion in model container [2021-11-19 15:42:56,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:42:56" (1/1) ... [2021-11-19 15:42:56,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:42:56,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:42:56,441 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_4ea03d88-d575-491e-bf5e-d0d0a76ed543/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2021-11-19 15:42:57,003 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:42:57,021 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:42:57,036 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_4ea03d88-d575-491e-bf5e-d0d0a76ed543/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2021-11-19 15:42:57,099 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:42:57,207 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:42:57,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57 WrapperNode [2021-11-19 15:42:57,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:42:57,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:42:57,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:42:57,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:42:57,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,316 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2021-11-19 15:42:57,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:42:57,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:42:57,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:42:57,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:42:57,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:42:57,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:42:57,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:42:57,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:42:57,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (1/1) ... [2021-11-19 15:42:57,418 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:42:57,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:42:57,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:42:57,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:42:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-11-19 15:42:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2021-11-19 15:42:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2021-11-19 15:42:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2021-11-19 15:42:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2021-11-19 15:42:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:42:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:42:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 15:42:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 15:42:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 15:42:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:42:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 15:42:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:42:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:42:57,532 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 15:42:57,908 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:42:57,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:42:58,145 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:42:58,158 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:42:58,158 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 15:42:58,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:42:58 BoogieIcfgContainer [2021-11-19 15:42:58,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:42:58,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:42:58,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:42:58,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:42:58,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:42:56" (1/3) ... [2021-11-19 15:42:58,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f639336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:42:58, skipping insertion in model container [2021-11-19 15:42:58,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:42:57" (2/3) ... [2021-11-19 15:42:58,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f639336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:42:58, skipping insertion in model container [2021-11-19 15:42:58,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:42:58" (3/3) ... [2021-11-19 15:42:58,180 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2021-11-19 15:42:58,188 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 15:42:58,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:42:58,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:42:58,189 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 15:42:58,239 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,239 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,239 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,239 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,240 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,240 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#in~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,240 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,240 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,241 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,241 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,241 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,242 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,242 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,242 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,243 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,243 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,243 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,244 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,244 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,244 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,244 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,245 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,245 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,245 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,245 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,246 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,246 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,246 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,247 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,247 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,247 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,248 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,248 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,248 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,249 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,249 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,249 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,249 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,250 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,250 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#in~ptr.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,250 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,250 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,251 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,251 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,251 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,251 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,252 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,252 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,252 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,253 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,256 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,257 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,257 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,257 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,258 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,258 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,258 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_~ptr#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,258 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,259 WARN L322 ript$VariableManager]: TermVariabe |f1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,263 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,263 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,263 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,263 WARN L322 ript$VariableManager]: TermVariabe |f2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,264 WARN L322 ript$VariableManager]: TermVariabe f2Thread1of1ForFork1_~ptr.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 15:42:58,267 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-19 15:42:58,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:42:58,332 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 [2021-11-19 15:42:58,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-19 15:42:58,349 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 15:42:58,366 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 93 transitions, 202 flow [2021-11-19 15:42:58,370 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 93 transitions, 202 flow [2021-11-19 15:42:58,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 93 transitions, 202 flow [2021-11-19 15:42:58,421 INFO L129 PetriNetUnfolder]: 1/91 cut-off events. [2021-11-19 15:42:58,422 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-19 15:42:58,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 91 events. 1/91 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2021-11-19 15:42:58,429 INFO L116 LiptonReduction]: Number of co-enabled transitions 876 [2021-11-19 15:43:05,638 INFO L131 LiptonReduction]: Checked pairs total: 1817 [2021-11-19 15:43:05,639 INFO L133 LiptonReduction]: Total number of compositions: 77 [2021-11-19 15:43:05,667 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions, 58 flow [2021-11-19 15:43:05,697 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66 states, 64 states have (on average 2.03125) internal successors, (130), 65 states have internal predecessors, (130), 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) [2021-11-19 15:43:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 64 states have (on average 2.03125) internal successors, (130), 65 states have internal predecessors, (130), 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) [2021-11-19 15:43:05,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 15:43:05,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:43:05,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:43:05,715 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:43:05,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:43:05,721 INFO L85 PathProgramCache]: Analyzing trace with hash -392666762, now seen corresponding path program 1 times [2021-11-19 15:43:05,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:43:05,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742108916] [2021-11-19 15:43:05,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:43:05,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:43:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:43:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:43:06,212 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:43:06,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742108916] [2021-11-19 15:43:06,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742108916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:43:06,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:43:06,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 15:43:06,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994906093] [2021-11-19 15:43:06,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:43:06,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:43:06,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:43:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:43:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:43:06,254 INFO L87 Difference]: Start difference. First operand has 66 states, 64 states have (on average 2.03125) internal successors, (130), 65 states have internal predecessors, (130), 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 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-19 15:43:06,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:43:06,321 INFO L93 Difference]: Finished difference Result 72 states and 136 transitions. [2021-11-19 15:43:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:43:06,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-19 15:43:06,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:43:06,335 INFO L225 Difference]: With dead ends: 72 [2021-11-19 15:43:06,335 INFO L226 Difference]: Without dead ends: 48 [2021-11-19 15:43:06,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:43:06,341 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:43:06,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:43:06,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-19 15:43:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-19 15:43:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.9148936170212767) internal successors, (90), 47 states have internal predecessors, (90), 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) [2021-11-19 15:43:06,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 90 transitions. [2021-11-19 15:43:06,387 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 90 transitions. Word has length 7 [2021-11-19 15:43:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:43:06,388 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 90 transitions. [2021-11-19 15:43:06,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-11-19 15:43:06,389 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 90 transitions. [2021-11-19 15:43:06,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:43:06,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:43:06,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:43:06,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:43:06,391 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:43:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:43:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -501861269, now seen corresponding path program 1 times [2021-11-19 15:43:06,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:43:06,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486874338] [2021-11-19 15:43:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:43:06,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:43:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:43:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:43:06,501 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:43:06,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486874338] [2021-11-19 15:43:06,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486874338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:43:06,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:43:06,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 15:43:06,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275286353] [2021-11-19 15:43:06,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:43:06,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:43:06,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:43:06,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:43:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:43:06,508 INFO L87 Difference]: Start difference. First operand 48 states and 90 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-19 15:43:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:43:06,556 INFO L93 Difference]: Finished difference Result 34 states and 51 transitions. [2021-11-19 15:43:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:43:06,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-11-19 15:43:06,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:43:06,559 INFO L225 Difference]: With dead ends: 34 [2021-11-19 15:43:06,559 INFO L226 Difference]: Without dead ends: 28 [2021-11-19 15:43:06,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:43:06,563 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:43:06,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:43:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-19 15:43:06,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-19 15:43:06,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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) [2021-11-19 15:43:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2021-11-19 15:43:06,579 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 11 [2021-11-19 15:43:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:43:06,580 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2021-11-19 15:43:06,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-11-19 15:43:06,581 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2021-11-19 15:43:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 15:43:06,582 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:43:06,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:43:06,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 15:43:06,583 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION, f1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:43:06,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:43:06,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1678472221, now seen corresponding path program 1 times [2021-11-19 15:43:06,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:43:06,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52836677] [2021-11-19 15:43:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:43:06,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:43:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:43:06,677 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 15:43:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 15:43:06,779 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 15:43:06,779 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 15:43:06,781 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-19 15:43:06,783 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-19 15:43:06,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-19 15:43:06,784 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-19 15:43:06,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 15:43:06,788 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 15:43:06,796 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 15:43:06,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 15:43:06,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 03:43:06 BasicIcfg [2021-11-19 15:43:06,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 15:43:06,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 15:43:06,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 15:43:06,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 15:43:06,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:42:58" (3/4) ... [2021-11-19 15:43:06,881 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 15:43:06,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 15:43:06,982 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 15:43:06,984 INFO L158 Benchmark]: Toolchain (without parser) took 10847.93ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 49.6MB in the beginning and 100.8MB in the end (delta: -51.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,984 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:43:06,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1071.12ms. Allocated memory is still 88.1MB. Free memory was 49.4MB in the beginning and 35.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.77ms. Allocated memory is still 88.1MB. Free memory was 35.0MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,989 INFO L158 Benchmark]: Boogie Preprocessor took 84.34ms. Allocated memory is still 88.1MB. Free memory was 32.2MB in the beginning and 29.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,989 INFO L158 Benchmark]: RCFGBuilder took 756.93ms. Allocated memory is still 88.1MB. Free memory was 29.8MB in the beginning and 51.2MB in the end (delta: -21.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,990 INFO L158 Benchmark]: TraceAbstraction took 8713.51ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.4MB in the beginning and 44.4MB in the end (delta: 6.0MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,991 INFO L158 Benchmark]: Witness Printer took 105.93ms. Allocated memory is still 130.0MB. Free memory was 44.4MB in the beginning and 100.8MB in the end (delta: -56.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-11-19 15:43:06,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1071.12ms. Allocated memory is still 88.1MB. Free memory was 49.4MB in the beginning and 35.0MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.77ms. Allocated memory is still 88.1MB. Free memory was 35.0MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.34ms. Allocated memory is still 88.1MB. Free memory was 32.2MB in the beginning and 29.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 756.93ms. Allocated memory is still 88.1MB. Free memory was 29.8MB in the beginning and 51.2MB in the end (delta: -21.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8713.51ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.4MB in the beginning and 44.4MB in the end (delta: 6.0MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Witness Printer took 105.93ms. Allocated memory is still 130.0MB. Free memory was 44.4MB in the beginning and 100.8MB in the end (delta: -56.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 99 PlacesBefore, 28 PlacesAfterwards, 93 TransitionsBefore, 21 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 1817 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1241, positive: 1123, positive conditional: 0, positive unconditional: 1123, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 604, positive: 578, positive conditional: 0, positive unconditional: 578, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 604, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 34, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 88, negative conditional: 0, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1241, positive: 545, positive conditional: 0, positive unconditional: 545, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 604, unknown conditional: 0, unknown unconditional: 604] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={5:0}, g=0, mut={9:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, t1={7:0}, t2={6:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={5:0}, g=0, mut={9:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, t1={7:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={5:0}, g=1, mut={9:0}, ptr={0:0}, ptr={0:0}, ptr={0:0}] [L1366] 2 g = 0 VAL [cond={5:0}, g=0, mut={9:0}, ptr={0:0}, ptr={0:0}] [L1369] 2 return ((void *)0); [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, \result={0:0}, cond={5:0}, cond=0, g=0, mut={9:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1377]: 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: 1375]: 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, 125 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-11-19 15:43:07,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ea03d88-d575-491e-bf5e-d0d0a76ed543/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE