./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/config/GemCutterReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:02:37,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:02:37,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:02:37,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:02:37,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:02:37,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:02:37,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:02:37,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:02:37,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:02:37,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:02:37,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:02:37,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:02:37,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:02:37,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:02:37,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:02:37,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:02:37,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:02:37,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:02:37,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:02:37,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:02:37,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:02:37,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:02:37,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:02:37,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:02:37,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:02:37,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:02:37,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:02:37,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:02:37,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:02:37,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:02:37,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:02:37,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:02:37,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:02:37,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:02:37,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:02:37,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:02:37,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:02:37,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:02:37,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:02:37,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:02:37,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:02:37,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-22 23:02:37,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:02:37,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:02:37,178 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:02:37,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:02:37,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:02:37,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-22 23:02:37,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:02:37,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:02:37,180 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:02:37,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:02:37,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:02:37,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:02:37,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:02:37,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:02:37,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:02:37,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:02:37,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:02:37,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:02:37,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:02:37,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:02:37,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:02:37,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:02:37,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:02:37,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-22 23:02:37,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:02:37,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:02:37,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:02:37,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:02:37,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:02:37,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:02:37,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:02:37,196 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:02:37,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-22 23:02:37,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:02:37,197 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-22 23:02:37,197 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-22 23:02:37,198 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_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2021-11-22 23:02:37,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:02:37,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:02:37,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:02:37,550 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:02:37,551 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:02:37,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-11-22 23:02:37,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/data/3f20eaaa2/21368a796c4d42a0821d9d3f4ddf092f/FLAGe7a356f9b [2021-11-22 23:02:38,282 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:02:38,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-11-22 23:02:38,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/data/3f20eaaa2/21368a796c4d42a0821d9d3f4ddf092f/FLAGe7a356f9b [2021-11-22 23:02:38,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/data/3f20eaaa2/21368a796c4d42a0821d9d3f4ddf092f [2021-11-22 23:02:38,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:02:38,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:02:38,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:02:38,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:02:38,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:02:38,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:02:38" (1/1) ... [2021-11-22 23:02:38,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c14e233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:38, skipping insertion in model container [2021-11-22 23:02:38,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:02:38" (1/1) ... [2021-11-22 23:02:38,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:02:38,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:02:39,208 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_e9ff9bcf-b320-459d-9007-c0feae055b3a/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-11-22 23:02:39,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:02:39,243 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:02:39,294 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_e9ff9bcf-b320-459d-9007-c0feae055b3a/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-11-22 23:02:39,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:02:39,480 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:02:39,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39 WrapperNode [2021-11-22 23:02:39,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:02:39,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:02:39,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:02:39,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:02:39,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,584 INFO L137 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2021-11-22 23:02:39,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:02:39,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:02:39,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:02:39,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:02:39,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:02:39,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:02:39,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:02:39,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:02:39,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (1/1) ... [2021-11-22 23:02:39,650 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:02:39,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:02:39,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 23:02:39,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 23:02:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 23:02:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:02:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 23:02:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:02:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-22 23:02:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:02:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:02:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:02:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:02:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:02:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-22 23:02:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-22 23:02:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:02:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:02:39,728 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 23:02:39,986 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:02:39,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:02:40,222 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:02:40,265 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:02:40,268 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 23:02:40,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:02:40 BoogieIcfgContainer [2021-11-22 23:02:40,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:02:40,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:02:40,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:02:40,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:02:40,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:02:38" (1/3) ... [2021-11-22 23:02:40,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c69e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:02:40, skipping insertion in model container [2021-11-22 23:02:40,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:02:39" (2/3) ... [2021-11-22 23:02:40,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c69e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:02:40, skipping insertion in model container [2021-11-22 23:02:40,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:02:40" (3/3) ... [2021-11-22 23:02:40,285 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-11-22 23:02:40,292 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 23:02:40,292 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:02:40,292 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-22 23:02:40,293 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 23:02:40,340 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,341 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,341 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,342 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,342 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,344 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,345 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,372 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,372 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,372 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 23:02:40,378 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-22 23:02:40,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-22 23:02:40,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 [2021-11-22 23:02:40,447 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-22 23:02:40,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-22 23:02:40,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-22 23:02:40,496 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=PARTIAL_ORDER_FA, 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 [2021-11-22 23:02:40,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-22 23:02:40,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-22 23:02:40,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:02:40,546 INFO L85 PathProgramCache]: Analyzing trace with hash 262582575, now seen corresponding path program 1 times [2021-11-22 23:02:40,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:02:40,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740594354] [2021-11-22 23:02:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:02:40,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:02:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:02:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:02:41,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:02:41,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740594354] [2021-11-22 23:02:41,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740594354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:02:41,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:02:41,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:02:41,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014363626] [2021-11-22 23:02:41,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:02:41,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:02:41,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:02:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:02:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:02:41,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:02:41,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2021-11-22 23:02:41,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:02:41,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:02:41,209 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-22 23:02:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:02:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash -367857545, now seen corresponding path program 1 times [2021-11-22 23:02:41,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:02:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439229446] [2021-11-22 23:02:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:02:41,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:02:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:02:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:02:41,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:02:41,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439229446] [2021-11-22 23:02:41,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439229446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:02:41,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:02:41,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 23:02:41,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253104397] [2021-11-22 23:02:41,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:02:41,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:02:41,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:02:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:02:41,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:02:41,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,334 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:02:41,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2021-11-22 23:02:41,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:02:41,335 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:02:41,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:02:41,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:02:41,381 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-22 23:02:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:02:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash -160008643, now seen corresponding path program 1 times [2021-11-22 23:02:41,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:02:41,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438661651] [2021-11-22 23:02:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:02:41,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:02:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:02:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:02:41,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:02:41,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438661651] [2021-11-22 23:02:41,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438661651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:02:41,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:02:41,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:02:41,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028807804] [2021-11-22 23:02:41,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:02:41,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:02:41,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:02:41,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:02:41,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:02:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,521 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-22 23:02:41,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:02:41,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:02:41,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:02:41,521 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-22 23:02:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 23:02:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:02:41,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 23:02:41,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 23:02:41,592 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-22 23:02:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:02:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -771862539, now seen corresponding path program 1 times [2021-11-22 23:02:41,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:02:41,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742511056] [2021-11-22 23:02:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:02:41,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:02:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:02:41,648 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 23:02:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 23:02:41,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 23:02:41,694 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 23:02:41,695 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-22 23:02:41,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-22 23:02:41,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-22 23:02:41,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-22 23:02:41,699 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2021-11-22 23:02:41,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 23:02:41,708 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-22 23:02:41,714 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 23:02:41,714 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 23:02:41,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 11:02:41 BasicIcfg [2021-11-22 23:02:41,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 23:02:41,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:02:41,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:02:41,770 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:02:41,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:02:40" (3/4) ... [2021-11-22 23:02:41,772 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 23:02:41,825 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/witness.graphml [2021-11-22 23:02:41,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:02:41,826 INFO L158 Benchmark]: Toolchain (without parser) took 3377.00ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 83.2MB in the beginning and 88.5MB in the end (delta: -5.3MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,827 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 57.1MB in the beginning and 57.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:02:41,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1031.31ms. Allocated memory is still 107.0MB. Free memory was 82.9MB in the beginning and 73.1MB in the end (delta: 9.8MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.93ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 69.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,828 INFO L158 Benchmark]: Boogie Preprocessor took 52.40ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,829 INFO L158 Benchmark]: RCFGBuilder took 632.75ms. Allocated memory is still 107.0MB. Free memory was 67.7MB in the beginning and 50.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,830 INFO L158 Benchmark]: TraceAbstraction took 1494.83ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 50.0MB in the beginning and 92.7MB in the end (delta: -42.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:02:41,830 INFO L158 Benchmark]: Witness Printer took 55.89ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 88.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 23:02:41,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 79.7MB. Free memory was 57.1MB in the beginning and 57.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1031.31ms. Allocated memory is still 107.0MB. Free memory was 82.9MB in the beginning and 73.1MB in the end (delta: 9.8MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.93ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 69.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.40ms. Allocated memory is still 107.0MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.75ms. Allocated memory is still 107.0MB. Free memory was 67.7MB in the beginning and 50.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1494.83ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 50.0MB in the beginning and 92.7MB in the end (delta: -42.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.89ms. Allocated memory is still 136.3MB. Free memory was 92.7MB in the beginning and 88.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 257, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 20, negative conditional: 17, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 242, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 242, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 11, negative conditional: 6, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, positive: 237, positive conditional: 2, positive unconditional: 235, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, positive: 237, positive conditional: 2, positive unconditional: 235, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 177, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 177, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 35, negative conditional: 2, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 248, positive: 64, positive conditional: 2, positive unconditional: 62, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 177, unknown conditional: 1, unknown unconditional: 176] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 173, Positive conditional cache size: 0, Positive unconditional cache size: 173, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 67, Maximal queried relation: 3, Independence queries for same thread: 15 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 91, Number of trivial persistent sets: 73, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 175, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 257, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 20, negative conditional: 17, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 242, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 242, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 5, negative conditional: 2, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 248, positive: 237, positive conditional: 65, positive unconditional: 172, negative: 11, negative conditional: 6, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 248, positive: 237, positive conditional: 2, positive unconditional: 235, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 248, positive: 237, positive conditional: 2, positive unconditional: 235, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 177, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 177, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 37, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 35, negative conditional: 2, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 248, positive: 64, positive conditional: 2, positive unconditional: 62, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 177, unknown conditional: 1, unknown unconditional: 176] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 173, Positive conditional cache size: 0, Positive unconditional cache size: 173, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 67, Maximal queried relation: 3, Independence queries for same thread: 15 - 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, EXPR 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}] [L1713] 0 return 0; VAL [\result=0, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, module_init()=0, mutex={4:0}, pdev=1, t1={3:0}] [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [arg={0:0}, mutex={4:0}, pdev=1, status={5:0}, t1={3:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] CALL 0 ldv_assert(pdev==4) [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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 111 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 16, 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, 0.4s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 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! [2021-11-22 23:02:41,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 23:02:42,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9ff9bcf-b320-459d-9007-c0feae055b3a/bin/ugemcutter-lIJgRBJBxA/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