./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_2-join.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_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_2-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:17:38,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:17:38,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:17:38,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:17:38,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:17:38,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:17:38,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:17:38,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:17:38,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:17:38,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:17:38,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:17:38,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:17:38,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:17:38,637 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:17:38,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:17:38,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:17:38,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:17:38,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:17:38,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:17:38,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:17:38,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:17:38,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:17:38,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:17:38,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:17:38,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:17:38,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:17:38,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:17:38,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:17:38,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:17:38,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:17:38,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:17:38,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:17:38,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:17:38,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:17:38,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:17:38,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:17:38,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:17:38,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:17:38,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:17:38,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:17:38,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:17:38,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:17:38,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:17:38,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:17:38,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:17:38,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:17:38,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:17:38,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:17:38,692 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:17:38,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:17:38,693 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:17:38,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:17:38,693 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:17:38,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:17:38,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:17:38,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:17:38,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:17:38,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:17:38,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:17:38,694 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:17:38,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:17:38,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:17:38,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:17:38,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:17:38,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:17:38,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:17:38,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:17:38,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:17:38,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:17:38,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:17:38,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:17:38,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:17:38,697 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:17:38,697 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:17:38,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:17:38,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:17:38,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd4c3d19582748238e9ca587d159d6e8fc23db581cd4de03be73dc785992e03f [2021-12-07 00:17:38,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:17:38,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:17:38,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:17:38,896 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:17:38,896 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:17:38,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-races/race-1_2-join.i [2021-12-07 00:17:38,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/data/27045d200/7b8c59b3fed046a8b3413f98f0265298/FLAGafd0e83f3 [2021-12-07 00:17:39,496 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:17:39,497 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/sv-benchmarks/c/ldv-races/race-1_2-join.i [2021-12-07 00:17:39,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/data/27045d200/7b8c59b3fed046a8b3413f98f0265298/FLAGafd0e83f3 [2021-12-07 00:17:39,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/data/27045d200/7b8c59b3fed046a8b3413f98f0265298 [2021-12-07 00:17:39,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:17:39,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:17:39,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:17:39,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:17:39,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:17:39,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:39" (1/1) ... [2021-12-07 00:17:39,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25da28d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:39, skipping insertion in model container [2021-12-07 00:17:39,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:17:39" (1/1) ... [2021-12-07 00:17:39,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:17:39,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:17:40,235 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_adba295a-7ea8-4d6c-b921-b36134b7e1e4/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2021-12-07 00:17:40,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:17:40,266 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:17:40,303 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_adba295a-7ea8-4d6c-b921-b36134b7e1e4/sv-benchmarks/c/ldv-races/race-1_2-join.i[76153,76166] [2021-12-07 00:17:40,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:17:40,410 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:17:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40 WrapperNode [2021-12-07 00:17:40,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:17:40,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:17:40,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:17:40,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:17:40,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,457 INFO L137 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2021-12-07 00:17:40,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:17:40,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:17:40,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:17:40,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:17:40,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:17:40,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:17:40,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:17:40,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:17:40,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (1/1) ... [2021-12-07 00:17:40,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:17:40,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:17:40,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:17:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:17:40,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:17:40,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 00:17:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-07 00:17:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-07 00:17:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 00:17:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:17:40,542 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-07 00:17:40,697 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:17:40,698 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:17:40,813 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:17:40,830 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:17:40,830 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-07 00:17:40,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:40 BoogieIcfgContainer [2021-12-07 00:17:40,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:17:40,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:17:40,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:17:40,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:17:40,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:17:39" (1/3) ... [2021-12-07 00:17:40,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d11089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:17:40, skipping insertion in model container [2021-12-07 00:17:40,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:17:40" (2/3) ... [2021-12-07 00:17:40,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d11089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:17:40, skipping insertion in model container [2021-12-07 00:17:40,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:40" (3/3) ... [2021-12-07 00:17:40,838 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-12-07 00:17:40,842 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-07 00:17:40,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:17:40,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-07 00:17:40,843 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,861 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,862 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,863 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,865 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,865 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,865 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-07 00:17:40,867 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-07 00:17:40,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:17:40,907 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=PETRI_NET, 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 [2021-12-07 00:17:40,907 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-07 00:17:40,916 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 220 flow [2021-12-07 00:17:40,946 INFO L129 PetriNetUnfolder]: 4/120 cut-off events. [2021-12-07 00:17:40,947 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-07 00:17:40,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 120 events. 4/120 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 164 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2021-12-07 00:17:40,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 220 flow [2021-12-07 00:17:40,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 87 transitions, 180 flow [2021-12-07 00:17:40,958 INFO L129 PetriNetUnfolder]: 1/36 cut-off events. [2021-12-07 00:17:40,958 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-07 00:17:40,958 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:17:40,958 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:40,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 00:17:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1430332822, now seen corresponding path program 1 times [2021-12-07 00:17:40,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:40,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091354724] [2021-12-07 00:17:40,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:40,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:41,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:41,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091354724] [2021-12-07 00:17:41,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091354724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:17:41,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:17:41,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:17:41,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149743370] [2021-12-07 00:17:41,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:17:41,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:17:41,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:41,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:17:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:17:41,270 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2021-12-07 00:17:41,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2021-12-07 00:17:41,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:17:41,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2021-12-07 00:17:41,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:17:41,339 INFO L129 PetriNetUnfolder]: 3/102 cut-off events. [2021-12-07 00:17:41,339 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-07 00:17:41,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 102 events. 3/102 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 1 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 51. Up to 11 conditions per place. [2021-12-07 00:17:41,340 INFO L132 encePairwiseOnDemand]: 94/106 looper letters, 14 selfloop transitions, 11 changer transitions 0/86 dead transitions. [2021-12-07 00:17:41,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 86 transitions, 228 flow [2021-12-07 00:17:41,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:17:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 00:17:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 551 transitions. [2021-12-07 00:17:41,353 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7425876010781671 [2021-12-07 00:17:41,353 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 551 transitions. [2021-12-07 00:17:41,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 551 transitions. [2021-12-07 00:17:41,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:17:41,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 551 transitions. [2021-12-07 00:17:41,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.71428571428571) internal successors, (551), 7 states have internal predecessors, (551), 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) [2021-12-07 00:17:41,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-07 00:17:41,368 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-07 00:17:41,369 INFO L186 Difference]: Start difference. First operand has 90 places, 87 transitions, 180 flow. Second operand 7 states and 551 transitions. [2021-12-07 00:17:41,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 86 transitions, 228 flow [2021-12-07 00:17:41,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 86 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-07 00:17:41,375 INFO L242 Difference]: Finished difference. Result has 92 places, 85 transitions, 202 flow [2021-12-07 00:17:41,377 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2021-12-07 00:17:41,379 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 2 predicate places. [2021-12-07 00:17:41,379 INFO L470 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 202 flow [2021-12-07 00:17:41,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2021-12-07 00:17:41,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:17:41,380 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:41,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:17:41,380 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 00:17:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:41,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2117080854, now seen corresponding path program 1 times [2021-12-07 00:17:41,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:41,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451885943] [2021-12-07 00:17:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:41,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:41,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:41,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451885943] [2021-12-07 00:17:41,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451885943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:17:41,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:17:41,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:17:41,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601228190] [2021-12-07 00:17:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:17:41,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:17:41,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:17:41,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:17:41,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2021-12-07 00:17:41,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2021-12-07 00:17:41,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:17:41,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2021-12-07 00:17:41,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:17:41,561 INFO L129 PetriNetUnfolder]: 3/100 cut-off events. [2021-12-07 00:17:41,561 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-12-07 00:17:41,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 100 events. 3/100 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 44. Up to 12 conditions per place. [2021-12-07 00:17:41,562 INFO L132 encePairwiseOnDemand]: 96/106 looper letters, 16 selfloop transitions, 5 changer transitions 7/85 dead transitions. [2021-12-07 00:17:41,562 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 85 transitions, 256 flow [2021-12-07 00:17:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-07 00:17:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-07 00:17:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 549 transitions. [2021-12-07 00:17:41,566 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7398921832884097 [2021-12-07 00:17:41,567 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 549 transitions. [2021-12-07 00:17:41,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 549 transitions. [2021-12-07 00:17:41,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:17:41,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 549 transitions. [2021-12-07 00:17:41,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.42857142857143) internal successors, (549), 7 states have internal predecessors, (549), 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) [2021-12-07 00:17:41,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-07 00:17:41,573 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-07 00:17:41,574 INFO L186 Difference]: Start difference. First operand has 92 places, 85 transitions, 202 flow. Second operand 7 states and 549 transitions. [2021-12-07 00:17:41,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 85 transitions, 256 flow [2021-12-07 00:17:41,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 85 transitions, 238 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-12-07 00:17:41,578 INFO L242 Difference]: Finished difference. Result has 91 places, 76 transitions, 174 flow [2021-12-07 00:17:41,579 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2021-12-07 00:17:41,579 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 1 predicate places. [2021-12-07 00:17:41,580 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 174 flow [2021-12-07 00:17:41,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2021-12-07 00:17:41,580 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:17:41,581 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:41,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:17:41,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 00:17:41,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:41,582 INFO L85 PathProgramCache]: Analyzing trace with hash 447259994, now seen corresponding path program 1 times [2021-12-07 00:17:41,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:41,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63088514] [2021-12-07 00:17:41,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:41,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:17:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:17:41,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:17:41,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63088514] [2021-12-07 00:17:41,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63088514] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:17:41,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:17:41,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:17:41,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474282531] [2021-12-07 00:17:41,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:17:41,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:17:41,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:17:41,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:17:41,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:17:41,653 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 106 [2021-12-07 00:17:41,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-12-07 00:17:41,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-07 00:17:41,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 106 [2021-12-07 00:17:41,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-07 00:17:41,683 INFO L129 PetriNetUnfolder]: 2/100 cut-off events. [2021-12-07 00:17:41,684 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-12-07 00:17:41,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 100 events. 2/100 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 26. Up to 13 conditions per place. [2021-12-07 00:17:41,684 INFO L132 encePairwiseOnDemand]: 101/106 looper letters, 11 selfloop transitions, 5 changer transitions 0/79 dead transitions. [2021-12-07 00:17:41,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 215 flow [2021-12-07 00:17:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:17:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-07 00:17:41,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2021-12-07 00:17:41,686 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8710691823899371 [2021-12-07 00:17:41,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2021-12-07 00:17:41,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2021-12-07 00:17:41,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-07 00:17:41,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2021-12-07 00:17:41,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-12-07 00:17:41,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-12-07 00:17:41,689 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-12-07 00:17:41,689 INFO L186 Difference]: Start difference. First operand has 91 places, 76 transitions, 174 flow. Second operand 3 states and 277 transitions. [2021-12-07 00:17:41,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 215 flow [2021-12-07 00:17:41,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 79 transitions, 203 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-07 00:17:41,692 INFO L242 Difference]: Finished difference. Result has 82 places, 78 transitions, 194 flow [2021-12-07 00:17:41,692 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2021-12-07 00:17:41,693 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, -8 predicate places. [2021-12-07 00:17:41,693 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 194 flow [2021-12-07 00:17:41,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-12-07 00:17:41,693 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-07 00:17:41,693 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:17:41,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:17:41,694 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-07 00:17:41,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:17:41,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1791891516, now seen corresponding path program 1 times [2021-12-07 00:17:41,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:17:41,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259180244] [2021-12-07 00:17:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:17:41,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:17:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:17:41,717 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 00:17:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 00:17:41,747 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 00:17:41,748 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 00:17:41,748 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-12-07 00:17:41,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-07 00:17:41,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-12-07 00:17:41,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-12-07 00:17:41,750 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2021-12-07 00:17:41,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:17:41,753 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-07 00:17:41,757 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-07 00:17:41,757 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:17:41,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:17:41 BasicIcfg [2021-12-07 00:17:41,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:17:41,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:17:41,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:17:41,782 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:17:41,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:17:40" (3/4) ... [2021-12-07 00:17:41,784 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-07 00:17:41,818 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:17:41,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:17:41,819 INFO L158 Benchmark]: Toolchain (without parser) took 2072.54ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 58.7MB in the beginning and 56.9MB in the end (delta: 1.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,819 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 81.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:17:41,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.59ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 58.4MB in the beginning and 63.4MB in the end (delta: -4.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.62ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 60.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,820 INFO L158 Benchmark]: Boogie Preprocessor took 28.50ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,821 INFO L158 Benchmark]: RCFGBuilder took 345.25ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 73.4MB in the end (delta: -15.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,821 INFO L158 Benchmark]: TraceAbstraction took 948.22ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 72.5MB in the beginning and 60.1MB in the end (delta: 12.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,821 INFO L158 Benchmark]: Witness Printer took 36.31ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 56.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-07 00:17:41,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 81.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.59ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 58.4MB in the beginning and 63.4MB in the end (delta: -4.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.62ms. Allocated memory is still 100.7MB. Free memory was 63.4MB in the beginning and 60.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.50ms. Allocated memory is still 100.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.25ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 73.4MB in the end (delta: -15.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 948.22ms. Allocated memory was 100.7MB in the beginning and 125.8MB in the end (delta: 25.2MB). Free memory was 72.5MB in the beginning and 60.1MB in the end (delta: 12.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * Witness Printer took 36.31ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 56.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={3:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1698] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1734] CALL 0 module_init() [L1709] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1717] CALL 0 ldv_assert(pdev==2) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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 3 procedures, 111 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 40 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=1, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-12-07 00:17:41,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adba295a-7ea8-4d6c-b921-b36134b7e1e4/bin/uautomizer-DrprNOufMa/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