./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 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 158852c017926f5105117106d37baef2e7c75d8b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:24:37,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:24:37,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:24:37,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:24:37,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:24:37,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:24:37,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:24:37,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:24:37,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:24:37,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:24:37,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:24:37,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:24:37,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:24:37,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:24:37,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:24:37,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:24:37,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:24:37,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:24:37,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:24:37,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:24:37,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:24:37,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:24:37,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:24:37,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:24:37,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:24:37,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:24:37,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:24:37,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:24:37,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:24:37,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:24:37,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:24:37,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:24:37,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:24:37,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:24:37,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:24:37,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:24:37,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:24:37,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:24:37,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:24:37,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:24:37,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:24:37,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:24:37,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:24:37,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:24:37,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:24:37,189 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:24:37,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:24:37,190 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:24:37,190 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:24:37,190 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:24:37,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:24:37,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:24:37,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:24:37,192 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:24:37,192 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:24:37,192 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:24:37,192 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:24:37,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:24:37,193 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:24:37,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:24:37,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:24:37,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:24:37,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:24:37,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:24:37,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:24:37,195 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:24:37,195 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:24:37,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:24:37,195 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:24:37,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:24:37,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:24:37,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:24:37,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:24:37,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:24:37,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:24:37,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:24:37,199 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:24:37,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:24:37,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:24:37,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:24:37,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:24:37,200 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 158852c017926f5105117106d37baef2e7c75d8b [2021-10-16 02:24:37,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:24:37,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:24:37,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:24:37,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:24:37,509 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:24:37,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-10-16 02:24:37,575 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/data/363a41bc4/8de6b259eb604b91817b8347c9786b77/FLAGd0aef8b61 [2021-10-16 02:24:38,231 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:24:38,233 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-10-16 02:24:38,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/data/363a41bc4/8de6b259eb604b91817b8347c9786b77/FLAGd0aef8b61 [2021-10-16 02:24:38,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/data/363a41bc4/8de6b259eb604b91817b8347c9786b77 [2021-10-16 02:24:38,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:24:38,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:24:38,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:24:38,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:24:38,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:24:38,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:38" (1/1) ... [2021-10-16 02:24:38,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da7fecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:38, skipping insertion in model container [2021-10-16 02:24:38,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:24:38" (1/1) ... [2021-10-16 02:24:38,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:24:38,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:24:39,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-10-16 02:24:39,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:24:39,576 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:24:39,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-10-16 02:24:39,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:24:39,754 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:24:39,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39 WrapperNode [2021-10-16 02:24:39,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:24:39,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:24:39,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:24:39,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:24:39,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:24:39,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:24:39,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:24:39,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:24:39,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:24:39,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:24:39,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:24:39,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:24:39,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (1/1) ... [2021-10-16 02:24:39,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:24:39,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:24:39,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:24:39,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:24:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 02:24:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:24:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 02:24:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:24:39,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 02:24:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 02:24:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:24:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:24:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:24:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 02:24:39,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 02:24:39,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:24:39,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:24:39,953 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 02:24:40,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:24:40,489 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-16 02:24:40,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:40 BoogieIcfgContainer [2021-10-16 02:24:40,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:24:40,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:24:40,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:24:40,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:24:40,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:24:38" (1/3) ... [2021-10-16 02:24:40,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a10225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:40, skipping insertion in model container [2021-10-16 02:24:40,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:24:39" (2/3) ... [2021-10-16 02:24:40,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a10225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:24:40, skipping insertion in model container [2021-10-16 02:24:40,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:40" (3/3) ... [2021-10-16 02:24:40,500 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-10-16 02:24:40,509 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 02:24:40,510 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:24:40,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 02:24:40,510 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 02:24:40,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,545 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,546 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 02:24:40,551 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 02:24:40,596 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:24:40,603 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:24:40,603 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-16 02:24:40,617 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-16 02:24:40,628 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 90 transitions, 188 flow [2021-10-16 02:24:40,631 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 90 transitions, 188 flow [2021-10-16 02:24:40,633 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 188 flow [2021-10-16 02:24:40,674 INFO L129 PetriNetUnfolder]: 4/104 cut-off events. [2021-10-16 02:24:40,675 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 02:24:40,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 104 events. 4/104 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2021-10-16 02:24:40,679 INFO L116 LiptonReduction]: Number of co-enabled transitions 252 [2021-10-16 02:24:46,603 INFO L131 LiptonReduction]: Checked pairs total: 278 [2021-10-16 02:24:46,604 INFO L133 LiptonReduction]: Total number of compositions: 102 [2021-10-16 02:24:46,612 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2021-10-16 02:24:46,621 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-10-16 02:24:46,627 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:46,627 INFO L512 BasicCegarLoop]: trace histogram [1] [2021-10-16 02:24:46,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-16 02:24:46,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:46,633 INFO L82 PathProgramCache]: Analyzing trace with hash 367, now seen corresponding path program 1 times [2021-10-16 02:24:46,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:46,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178967792] [2021-10-16 02:24:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:46,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:24:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:24:46,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:24:46,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178967792] [2021-10-16 02:24:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178967792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:24:46,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:24:46,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-10-16 02:24:46,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644618273] [2021-10-16 02:24:46,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:24:46,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:24:46,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:24:46,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:24:46,895 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:46,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:24:46,906 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-10-16 02:24:46,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:24:46,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2021-10-16 02:24:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:24:46,914 INFO L225 Difference]: With dead ends: 19 [2021-10-16 02:24:46,914 INFO L226 Difference]: Without dead ends: 13 [2021-10-16 02:24:46,916 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:24:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-16 02:24:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-16 02:24:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-10-16 02:24:46,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 1 [2021-10-16 02:24:46,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:24:46,944 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-10-16 02:24:46,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-16 02:24:46,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:24:46,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:46,945 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:24:46,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:24:46,946 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)] === [2021-10-16 02:24:46,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash 363488, now seen corresponding path program 1 times [2021-10-16 02:24:46,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:46,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244215926] [2021-10-16 02:24:46,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:46,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:24:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:24:47,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:24:47,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244215926] [2021-10-16 02:24:47,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244215926] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:24:47,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:24:47,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:24:47,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76635766] [2021-10-16 02:24:47,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:24:47,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:24:47,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:24:47,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:47,102 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:24:47,117 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-16 02:24:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:24:47,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-16 02:24:47,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:24:47,120 INFO L225 Difference]: With dead ends: 11 [2021-10-16 02:24:47,121 INFO L226 Difference]: Without dead ends: 10 [2021-10-16 02:24:47,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-16 02:24:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-16 02:24:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-16 02:24:47,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 3 [2021-10-16 02:24:47,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:24:47,126 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-16 02:24:47,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,126 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-16 02:24:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:24:47,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:47,127 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:24:47,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:24:47,128 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-16 02:24:47,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:47,129 INFO L82 PathProgramCache]: Analyzing trace with hash 348068664, now seen corresponding path program 1 times [2021-10-16 02:24:47,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:47,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801299002] [2021-10-16 02:24:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:47,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:24:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:24:47,278 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:24:47,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801299002] [2021-10-16 02:24:47,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801299002] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:24:47,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:24:47,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:24:47,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210820732] [2021-10-16 02:24:47,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:24:47,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:24:47,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:24:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:47,287 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:24:47,299 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-10-16 02:24:47,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:24:47,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:24:47,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:24:47,301 INFO L225 Difference]: With dead ends: 10 [2021-10-16 02:24:47,301 INFO L226 Difference]: Without dead ends: 7 [2021-10-16 02:24:47,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:24:47,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-16 02:24:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-16 02:24:47,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-16 02:24:47,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 5 [2021-10-16 02:24:47,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:24:47,310 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-16 02:24:47,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:24:47,311 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-16 02:24:47,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:24:47,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:24:47,312 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:24:47,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:24:47,313 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)] === [2021-10-16 02:24:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:24:47,316 INFO L82 PathProgramCache]: Analyzing trace with hash -2094769695, now seen corresponding path program 1 times [2021-10-16 02:24:47,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:24:47,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736622799] [2021-10-16 02:24:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:24:47,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:24:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:24:47,397 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:24:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:24:47,471 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:24:47,472 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:24:47,473 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:24:47,474 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:24:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:24:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:24:47,475 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 02:24:47,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:24:47,482 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 02:24:47,482 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:24:47,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:24:47 BasicIcfg [2021-10-16 02:24:47,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:24:47,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:24:47,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:24:47,505 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:24:47,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:24:40" (3/4) ... [2021-10-16 02:24:47,507 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:24:47,546 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:24:47,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:24:47,548 INFO L168 Benchmark]: Toolchain (without parser) took 9123.73 ms. Allocated memory was 94.4 MB in the beginning and 157.3 MB in the end (delta: 62.9 MB). Free memory was 55.8 MB in the beginning and 68.8 MB in the end (delta: -13.0 MB). Peak memory consumption was 48.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,548 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:24:47,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1328.24 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 55.6 MB in the beginning and 64.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.54 ms. Allocated memory is still 130.0 MB. Free memory was 64.6 MB in the beginning and 61.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,550 INFO L168 Benchmark]: Boogie Preprocessor took 44.59 ms. Allocated memory is still 130.0 MB. Free memory was 61.5 MB in the beginning and 58.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,551 INFO L168 Benchmark]: RCFGBuilder took 622.42 ms. Allocated memory is still 130.0 MB. Free memory was 58.9 MB in the beginning and 90.6 MB in the end (delta: -31.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,551 INFO L168 Benchmark]: TraceAbstraction took 7010.81 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 89.9 MB in the beginning and 70.9 MB in the end (delta: 19.0 MB). Peak memory consumption was 44.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,552 INFO L168 Benchmark]: Witness Printer took 41.95 ms. Allocated memory is still 157.3 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:24:47,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 65.6 MB in the end (delta: 27.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1328.24 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 55.6 MB in the beginning and 64.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.54 ms. Allocated memory is still 130.0 MB. Free memory was 64.6 MB in the beginning and 61.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.59 ms. Allocated memory is still 130.0 MB. Free memory was 61.5 MB in the beginning and 58.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 622.42 ms. Allocated memory is still 130.0 MB. Free memory was 58.9 MB in the beginning and 90.6 MB in the end (delta: -31.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7010.81 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 89.9 MB in the beginning and 70.9 MB in the end (delta: 19.0 MB). Peak memory consumption was 44.9 MB. Max. memory is 16.1 GB. * Witness Printer took 41.95 ms. Allocated memory is still 157.3 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5973.2ms, 89 PlacesBefore, 17 PlacesAfterwards, 90 TransitionsBefore, 15 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 7 FixpointIterations, 69 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 102 TotalNumberOfCompositions, 278 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 254, positive: 228, positive conditional: 0, positive unconditional: 228, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 191, positive: 182, positive conditional: 0, positive unconditional: 182, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 191, positive: 181, positive conditional: 0, positive unconditional: 181, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 254, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 191, unknown conditional: 0, unknown unconditional: 191] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={5:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={7:0}, pdev=4, t1={5:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={5:0}] - 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, 95 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 6884.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 7.4ms, AutomataDifference: 78.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6018.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 21.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.9ms SsaConstructionTime, 132.6ms SatisfiabilityAnalysisTime, 220.3ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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! [2021-10-16 02:24:47,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96d8dd36-1f93-456f-b966-3984c745d063/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...