./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw --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 2930974711125c4237a3bdff663f953bf59447c2b950eedd814814c97fbe4a3b ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw --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 2930974711125c4237a3bdff663f953bf59447c2b950eedd814814c97fbe4a3b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:12:09,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:12:09,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:12:09,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:12:09,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:12:09,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:12:09,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:12:09,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:12:09,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:12:09,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:12:09,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:12:09,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:12:09,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:12:09,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:12:09,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:12:09,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:12:09,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:12:09,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:12:09,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:12:09,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:12:09,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:12:09,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:12:09,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:12:09,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:12:09,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:12:09,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:12:09,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:12:09,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:12:09,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:12:09,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:12:09,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:12:09,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:12:09,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:12:09,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:12:09,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:12:09,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:12:09,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:12:09,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:12:09,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:12:09,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:12:09,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:12:09,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:12:09,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:12:09,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:12:09,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:12:09,277 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:12:09,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:12:09,278 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:12:09,278 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:12:09,279 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:12:09,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:12:09,279 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:12:09,280 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:12:09,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:12:09,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:12:09,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:12:09,281 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:12:09,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:12:09,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:12:09,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:12:09,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:12:09,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:12:09,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:12:09,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:12:09,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:12:09,284 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:12:09,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:12:09,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:12:09,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:12:09,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:12:09,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:12:09,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:12:09,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:09,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:12:09,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:12:09,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:12:09,289 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:12:09,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:12:09,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:12:09,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:12:09,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:12:09,291 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_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2930974711125c4237a3bdff663f953bf59447c2b950eedd814814c97fbe4a3b [2021-10-20 05:12:09,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:12:09,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:12:09,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:12:09,645 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:12:09,646 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:12:09,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-10-20 05:12:09,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/3c4ccd3af/c6ce2ae4242b40729895442658cbdea1/FLAG0d91c1b62 [2021-10-20 05:12:10,403 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:12:10,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-10-20 05:12:10,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/3c4ccd3af/c6ce2ae4242b40729895442658cbdea1/FLAG0d91c1b62 [2021-10-20 05:12:10,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/3c4ccd3af/c6ce2ae4242b40729895442658cbdea1 [2021-10-20 05:12:10,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:12:10,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:12:10,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:10,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:12:10,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:12:10,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:10" (1/1) ... [2021-10-20 05:12:10,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384aac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:10, skipping insertion in model container [2021-10-20 05:12:10,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:10" (1/1) ... [2021-10-20 05:12:10,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:12:10,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:11,202 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_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-10-20 05:12:11,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:11,259 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-20 05:12:11,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7db771d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:11, skipping insertion in model container [2021-10-20 05:12:11,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:11,261 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:12:11,264 INFO L168 Benchmark]: Toolchain (without parser) took 583.23 ms. Allocated memory is still 107.0 MB. Free memory was 63.5 MB in the beginning and 78.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:12:11,266 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:12:11,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.67 ms. Allocated memory is still 107.0 MB. Free memory was 63.3 MB in the beginning and 78.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:12:11,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 107.0 MB. Free memory is still 81.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 573.67 ms. Allocated memory is still 107.0 MB. Free memory was 63.3 MB in the beginning and 78.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 693]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:12:14,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:12:14,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:12:14,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:12:14,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:12:14,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:12:14,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:12:14,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:12:14,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:12:14,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:12:14,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:12:14,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:12:14,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:12:14,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:12:14,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:12:14,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:12:14,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:12:14,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:12:14,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:12:14,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:12:14,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:12:14,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:12:14,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:12:14,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:12:14,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:12:14,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:12:14,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:12:14,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:12:14,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:12:14,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:12:14,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:12:14,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:12:14,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:12:14,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:12:14,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:12:14,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:12:14,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:12:14,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:12:14,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:12:14,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:12:14,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:12:14,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:12:14,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:12:14,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:12:14,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:12:14,242 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:12:14,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:12:14,243 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:12:14,243 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:12:14,243 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:12:14,244 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:12:14,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:12:14,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:12:14,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:12:14,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:12:14,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:12:14,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:12:14,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:12:14,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:12:14,249 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:12:14,249 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:12:14,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:12:14,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:12:14,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:12:14,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:12:14,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:12:14,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:12:14,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:12:14,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:14,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:12:14,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:12:14,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:12:14,253 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:12:14,253 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:12:14,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:12:14,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:12:14,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:12:14,254 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2930974711125c4237a3bdff663f953bf59447c2b950eedd814814c97fbe4a3b [2021-10-20 05:12:14,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:12:14,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:12:14,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:12:14,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:12:14,783 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:12:14,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-10-20 05:12:14,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/f37b2f6b6/13a87d63ddca4739877acf58ec1c0487/FLAG547a52bf2 [2021-10-20 05:12:15,682 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:12:15,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2021-10-20 05:12:15,716 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/f37b2f6b6/13a87d63ddca4739877acf58ec1c0487/FLAG547a52bf2 [2021-10-20 05:12:15,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/data/f37b2f6b6/13a87d63ddca4739877acf58ec1c0487 [2021-10-20 05:12:15,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:12:15,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:12:15,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:15,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:12:15,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:12:15,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:15" (1/1) ... [2021-10-20 05:12:15,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fec0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:15, skipping insertion in model container [2021-10-20 05:12:15,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:12:15" (1/1) ... [2021-10-20 05:12:15,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:12:16,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:16,542 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_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-10-20 05:12:16,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:16,596 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:12:16,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:12:16,666 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_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-10-20 05:12:16,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:16,690 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:12:16,749 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_04ed37e0-20bb-4447-95fa-45859b56d052/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-10-20 05:12:16,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:12:16,844 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:12:16,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16 WrapperNode [2021-10-20 05:12:16,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:12:16,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:12:16,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:12:16,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:12:16,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:12:16,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:12:16,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:12:16,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:12:16,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:16,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:12:16,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:12:16,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:12:16,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:12:16,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (1/1) ... [2021-10-20 05:12:17,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:12:17,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:12:17,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:12:17,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:12:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-20 05:12:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-20 05:12:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:12:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-20 05:12:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-20 05:12:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:12:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-20 05:12:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:12:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-20 05:12:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:12:17,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:12:17,089 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-20 05:12:17,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:12:17,643 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-20 05:12:17,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:12:17 BoogieIcfgContainer [2021-10-20 05:12:17,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:12:17,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:12:17,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:12:17,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:12:17,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:12:15" (1/3) ... [2021-10-20 05:12:17,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa0593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:12:17, skipping insertion in model container [2021-10-20 05:12:17,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:12:16" (2/3) ... [2021-10-20 05:12:17,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13fa0593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:12:17, skipping insertion in model container [2021-10-20 05:12:17,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:12:17" (3/3) ... [2021-10-20 05:12:17,668 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-10-20 05:12:17,673 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-20 05:12:17,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:12:17,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:12:17,674 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-20 05:12:17,730 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,730 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,731 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,731 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,734 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,735 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,736 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,740 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,740 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,741 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,741 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,742 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,743 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,743 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,743 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,744 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,745 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,746 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,757 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,759 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,760 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,760 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,761 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,762 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,763 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,768 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,768 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,768 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,769 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,770 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,770 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,771 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,773 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,777 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,777 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-20 05:12:17,788 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-20 05:12:17,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:12:17,868 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:12:17,869 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-20 05:12:17,893 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-20 05:12:17,906 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 103 transitions, 214 flow [2021-10-20 05:12:17,910 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 103 transitions, 214 flow [2021-10-20 05:12:17,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 103 transitions, 214 flow [2021-10-20 05:12:18,017 INFO L129 PetriNetUnfolder]: 9/102 cut-off events. [2021-10-20 05:12:18,018 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-20 05:12:18,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 9/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2021-10-20 05:12:18,030 INFO L116 LiptonReduction]: Number of co-enabled transitions 1452 [2021-10-20 05:12:43,072 INFO L131 LiptonReduction]: Checked pairs total: 2760 [2021-10-20 05:12:43,073 INFO L133 LiptonReduction]: Total number of compositions: 93 [2021-10-20 05:12:43,081 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2021-10-20 05:12:43,098 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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) [2021-10-20 05:12:43,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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) [2021-10-20 05:12:43,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-20 05:12:43,107 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:12:43,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-20 05:12:43,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-20 05:12:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:12:43,119 INFO L82 PathProgramCache]: Analyzing trace with hash 376992964, now seen corresponding path program 1 times [2021-10-20 05:12:43,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:12:43,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906477275] [2021-10-20 05:12:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:12:43,140 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:12:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:12:43,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:12:43,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:12:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:12:43,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-20 05:12:43,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:12:43,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 123 [2021-10-20 05:12:44,331 INFO L354 Elim1Store]: treesize reduction 989, result has 6.0 percent of original size [2021-10-20 05:12:44,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 123 treesize of output 143 [2021-10-20 05:12:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:12:47,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:12:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:12:49,365 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:12:49,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906477275] [2021-10-20 05:12:49,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906477275] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:12:49,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:12:49,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-10-20 05:12:49,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500516616] [2021-10-20 05:12:49,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:12:49,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:12:49,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:12:49,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2021-10-20 05:12:49,392 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-20 05:13:01,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:01,569 INFO L93 Difference]: Finished difference Result 70 states and 114 transitions. [2021-10-20 05:13:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:01,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 [2021-10-20 05:13:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:01,582 INFO L225 Difference]: With dead ends: 70 [2021-10-20 05:13:01,582 INFO L226 Difference]: Without dead ends: 38 [2021-10-20 05:13:01,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4091.4ms TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2021-10-20 05:13:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-20 05:13:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-20 05:13:01,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 37 states have internal predecessors, (60), 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) [2021-10-20 05:13:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-10-20 05:13:01,621 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2021-10-20 05:13:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:01,622 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-10-20 05:13:01,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-20 05:13:01,623 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-10-20 05:13:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-20 05:13:01,624 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:01,624 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:01,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:01,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:01,842 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-20 05:13:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:01,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1756775425, now seen corresponding path program 1 times [2021-10-20 05:13:01,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:01,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617294179] [2021-10-20 05:13:01,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:01,844 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:01,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:01,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:01,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:13:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:02,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:13:02,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:02,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2021-10-20 05:13:02,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-20 05:13:02,246 INFO L354 Elim1Store]: treesize reduction 22, result has 31.3 percent of original size [2021-10-20 05:13:02,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:13:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:02,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:03,928 WARN L838 $PredicateComparison]: unable to prove that (forall ((|~#__global_lock~0.offset| (_ BitVec 32))) (not (= (_ bv0 1) (select (select (store |c_#pthreadsMutex| |c_~#__global_lock~0.base| (store (select |c_#pthreadsMutex| |c_~#__global_lock~0.base|) |~#__global_lock~0.offset| (_ bv1 1))) |c_~#mutex1~0.base|) |c_~#mutex1~0.offset|)))) is different from false [2021-10-20 05:13:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:03,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:03,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617294179] [2021-10-20 05:13:03,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617294179] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:03,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:03,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:13:03,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167519553] [2021-10-20 05:13:03,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-20 05:13:03,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:03,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-20 05:13:03,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=19, Unknown=1, NotChecked=8, Total=42 [2021-10-20 05:13:03,956 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-10-20 05:13:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:04,148 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2021-10-20 05:13:04,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-20 05:13:04,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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 9 [2021-10-20 05:13:04,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:04,150 INFO L225 Difference]: With dead ends: 17 [2021-10-20 05:13:04,150 INFO L226 Difference]: Without dead ends: 15 [2021-10-20 05:13:04,151 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1603.3ms TimeCoverageRelationStatistics Valid=20, Invalid=25, Unknown=1, NotChecked=10, Total=56 [2021-10-20 05:13:04,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-20 05:13:04,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-10-20 05:13:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 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) [2021-10-20 05:13:04,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2021-10-20 05:13:04,154 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2021-10-20 05:13:04,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:04,154 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2021-10-20 05:13:04,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 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) [2021-10-20 05:13:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2021-10-20 05:13:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-20 05:13:04,155 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:04,156 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:04,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:04,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:04,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-20 05:13:04,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:04,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1846323674, now seen corresponding path program 1 times [2021-10-20 05:13:04,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:04,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300933257] [2021-10-20 05:13:04,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:04,359 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:04,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:04,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:04,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:13:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:04,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-20 05:13:04,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:04,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 366 treesize of output 364 [2021-10-20 05:13:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:04,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:04,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:04,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:04,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:05,028 INFO L354 Elim1Store]: treesize reduction 923, result has 6.4 percent of original size [2021-10-20 05:13:05,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 364 treesize of output 384 [2021-10-20 05:13:12,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 05:13:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 05:13:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:12,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-20 05:13:12,476 INFO L354 Elim1Store]: treesize reduction 1194, result has 2.8 percent of original size [2021-10-20 05:13:12,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 6 disjoint index pairs (out of 66 index pairs), introduced 8 new quantified variables, introduced 42 case distinctions, treesize of input 227 treesize of output 137 [2021-10-20 05:13:14,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:13:15,293 INFO L354 Elim1Store]: treesize reduction 1194, result has 2.8 percent of original size [2021-10-20 05:13:15,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 263 treesize of output 173 [2021-10-20 05:13:15,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:15,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:16,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:16,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:16,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300933257] [2021-10-20 05:13:16,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300933257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:16,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:16,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 2] imperfect sequences [] total 6 [2021-10-20 05:13:16,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928898887] [2021-10-20 05:13:16,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:13:16,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:16,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:13:16,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:13:16,475 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-20 05:13:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:18,718 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-10-20 05:13:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 05:13:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 14 [2021-10-20 05:13:18,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:18,720 INFO L225 Difference]: With dead ends: 14 [2021-10-20 05:13:18,720 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:13:18,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 10799.7ms TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-20 05:13:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:13:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:13:18,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-20 05:13:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:13:18,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-20 05:13:18,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:18,722 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:13:18,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2021-10-20 05:13:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:13:18,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:13:18,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:18,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-20 05:13:18,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-20 05:13:18,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:18,943 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-20 05:13:18,943 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:13:18,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:13:18 BasicIcfg [2021-10-20 05:13:18,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:13:18,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:13:18,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:13:18,946 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:13:18,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:12:17" (3/4) ... [2021-10-20 05:13:18,950 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:13:18,957 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-20 05:13:18,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-20 05:13:18,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-20 05:13:18,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:13:18,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:13:19,025 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:13:19,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:13:19,027 INFO L168 Benchmark]: Toolchain (without parser) took 63093.01 ms. Allocated memory was 52.4 MB in the beginning and 92.3 MB in the end (delta: 39.8 MB). Free memory was 28.6 MB in the beginning and 61.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,027 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:19,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 909.04 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 44.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.46 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 41.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,035 INFO L168 Benchmark]: Boogie Preprocessor took 49.97 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 40.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,036 INFO L168 Benchmark]: RCFGBuilder took 663.72 ms. Allocated memory is still 75.5 MB. Free memory was 39.8 MB in the beginning and 44.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,036 INFO L168 Benchmark]: TraceAbstraction took 61284.84 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 44.3 MB in the beginning and 64.4 MB in the end (delta: -20.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:19,037 INFO L168 Benchmark]: Witness Printer took 79.95 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 61.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:19,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.5 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 909.04 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 44.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.46 ms. Allocated memory is still 75.5 MB. Free memory was 44.0 MB in the beginning and 41.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.97 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 40.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 663.72 ms. Allocated memory is still 75.5 MB. Free memory was 39.8 MB in the beginning and 44.6 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 61284.84 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 44.3 MB in the beginning and 64.4 MB in the end (delta: -20.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 79.95 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 61.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25163.1ms, 98 PlacesBefore, 25 PlacesAfterwards, 103 TransitionsBefore, 29 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 2760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1793, positive: 1670, positive conditional: 0, positive unconditional: 1670, negative: 123, negative conditional: 0, negative unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1108, positive: 1074, positive conditional: 0, positive unconditional: 1074, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1108, positive: 988, positive conditional: 0, positive unconditional: 988, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 120, positive: 86, positive conditional: 0, positive unconditional: 86, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1314, positive: 146, positive conditional: 0, positive unconditional: 146, negative: 1167, negative conditional: 0, negative unconditional: 1167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1793, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 1108, unknown conditional: 0, unknown unconditional: 1108] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - 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 - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 124 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 61091.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 10.7ms, AutomataDifference: 14658.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25228.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 25 SDs, 0 SdLazy, 37 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 12410.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 16494.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 50.0ms SsaConstructionTime, 395.0ms SatisfiabilityAnalysisTime, 19778.2ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 21 QuantifiedInterpolants, 3997 SizeOfPredicates, 33 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-20 05:13:19,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04ed37e0-20bb-4447-95fa-45859b56d052/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...