./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG --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 0d8799100fd609ab67add98408724f155026fd97a78e0a4112bb89c435f95463 ............................................................................................................................................ 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG --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 0d8799100fd609ab67add98408724f155026fd97a78e0a4112bb89c435f95463 ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:16:41,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:16:41,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:16:41,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:16:41,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:16:41,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:16:41,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:16:41,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:16:41,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:16:41,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:16:41,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:16:41,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:16:41,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:16:41,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:16:41,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:16:41,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:16:41,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:16:41,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:16:41,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:16:41,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:16:41,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:16:41,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:16:41,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:16:41,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:16:41,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:16:41,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:16:41,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:16:41,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:16:41,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:16:41,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:16:41,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:16:41,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:16:41,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:16:41,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:16:41,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:16:41,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:16:41,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:16:41,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:16:41,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:16:41,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:16:41,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:16:41,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:16:41,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:16:41,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:16:41,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:16:41,772 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:16:41,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:16:41,772 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:16:41,773 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:16:41,773 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:16:41,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:16:41,774 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:16:41,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:16:41,783 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:16:41,783 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:16:41,783 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:16:41,784 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:16:41,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:16:41,785 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:16:41,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:16:41,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:16:41,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:16:41,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:16:41,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:16:41,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:16:41,787 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:16:41,787 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:16:41,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:16:41,788 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:16:41,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:16:41,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:16:41,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:16:41,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:16:41,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:16:41,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:16:41,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:16:41,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:16:41,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:16:41,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:16:41,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:16:41,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:16:41,794 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8799100fd609ab67add98408724f155026fd97a78e0a4112bb89c435f95463 [2021-10-29 05:16:42,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:16:42,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:16:42,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:16:42,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:16:42,179 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:16:42,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-29 05:16:42,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/c0192d7a0/e1f4225068f344fbb2a0a2be70bceea6/FLAG2cc805235 [2021-10-29 05:16:42,896 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:16:42,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-29 05:16:42,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/c0192d7a0/e1f4225068f344fbb2a0a2be70bceea6/FLAG2cc805235 [2021-10-29 05:16:43,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/c0192d7a0/e1f4225068f344fbb2a0a2be70bceea6 [2021-10-29 05:16:43,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:16:43,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:16:43,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:16:43,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:16:43,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:16:43,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:16:43" (1/1) ... [2021-10-29 05:16:43,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751d20c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:43, skipping insertion in model container [2021-10-29 05:16:43,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:16:43" (1/1) ... [2021-10-29 05:16:43,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:16:43,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:16:43,518 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2021-10-29 05:16:43,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:16:43,541 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) [2021-10-29 05:16:43,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54c0461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:43, skipping insertion in model container [2021-10-29 05:16:43,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:16:43,543 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:16:43,546 INFO L168 Benchmark]: Toolchain (without parser) took 319.08 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 63.6 MB in the beginning and 104.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:43,548 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:16:43,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.72 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 63.6 MB in the beginning and 104.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:16:43,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 96.5 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.72 ms. Allocated memory was 96.5 MB in the beginning and 127.9 MB in the end (delta: 31.5 MB). Free memory was 63.6 MB in the beginning and 104.5 MB in the end (delta: -40.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 107]: 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-b2eff8b [2021-10-29 05:16:46,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:16:46,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:16:46,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:16:46,504 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:16:46,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:16:46,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:16:46,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:16:46,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:16:46,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:16:46,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:16:46,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:16:46,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:16:46,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:16:46,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:16:46,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:16:46,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:16:46,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:16:46,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:16:46,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:16:46,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:16:46,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:16:46,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:16:46,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:16:46,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:16:46,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:16:46,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:16:46,587 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:16:46,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:16:46,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:16:46,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:16:46,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:16:46,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:16:46,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:16:46,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:16:46,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:16:46,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:16:46,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:16:46,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:16:46,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:16:46,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:16:46,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:16:46,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:16:46,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:16:46,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:16:46,673 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:16:46,673 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:16:46,673 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:16:46,674 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:16:46,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:16:46,674 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:16:46,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:16:46,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:16:46,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:16:46,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:16:46,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:16:46,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:16:46,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:16:46,679 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:16:46,679 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:16:46,680 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:16:46,680 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:16:46,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:16:46,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:16:46,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:16:46,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:16:46,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:16:46,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:16:46,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:16:46,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:16:46,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:16:46,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:16:46,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:16:46,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:16:46,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:16:46,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:16:46,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:16:46,684 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8799100fd609ab67add98408724f155026fd97a78e0a4112bb89c435f95463 [2021-10-29 05:16:47,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:16:47,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:16:47,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:16:47,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:16:47,179 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:16:47,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-29 05:16:47,269 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/a8e6ffd93/0471813f2b844055b900bc3df933b426/FLAG12a5ad374 [2021-10-29 05:16:47,901 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:16:47,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2021-10-29 05:16:47,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/a8e6ffd93/0471813f2b844055b900bc3df933b426/FLAG12a5ad374 [2021-10-29 05:16:48,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/data/a8e6ffd93/0471813f2b844055b900bc3df933b426 [2021-10-29 05:16:48,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:16:48,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:16:48,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:16:48,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:16:48,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:16:48,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7091cf41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48, skipping insertion in model container [2021-10-29 05:16:48,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:16:48,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:16:48,556 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2021-10-29 05:16:48,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:16:48,582 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:16:48,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:16:48,606 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2021-10-29 05:16:48,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:16:48,617 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:16:48,683 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_0df0c240-cc0c-4213-83ab-e692a95b9e14/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c[2486,2499] [2021-10-29 05:16:48,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:16:48,769 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:16:48,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48 WrapperNode [2021-10-29 05:16:48,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:16:48,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:16:48,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:16:48,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:16:48,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:16:48,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:16:48,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:16:48,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:16:48,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:16:48,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:16:48,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:16:48,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:16:48,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (1/1) ... [2021-10-29 05:16:48,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:16:48,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:16:48,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:16:49,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:16:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-29 05:16:49,064 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-29 05:16:49,065 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-29 05:16:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-29 05:16:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-29 05:16:49,067 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-29 05:16:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:16:49,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:16:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-29 05:16:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-29 05:16:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:16:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:16:49,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:16:49,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:16:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:16:49,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:16:49,071 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:16:50,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:16:50,010 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-10-29 05:16:50,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:16:50 BoogieIcfgContainer [2021-10-29 05:16:50,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:16:50,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:16:50,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:16:50,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:16:50,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:16:48" (1/3) ... [2021-10-29 05:16:50,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a312e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:16:50, skipping insertion in model container [2021-10-29 05:16:50,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:16:48" (2/3) ... [2021-10-29 05:16:50,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a312e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:16:50, skipping insertion in model container [2021-10-29 05:16:50,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:16:50" (3/3) ... [2021-10-29 05:16:50,024 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2021-10-29 05:16:50,031 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:16:50,031 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:16:50,031 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:16:50,032 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:16:50,071 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,072 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,073 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,073 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,073 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,074 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,074 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,074 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,074 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,075 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,075 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,075 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,075 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,076 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,076 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,077 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,077 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,078 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,078 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,078 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,079 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,079 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,079 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,079 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,080 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,080 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,080 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,081 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,082 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,082 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,082 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,083 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,083 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,084 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,084 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,085 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,085 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,085 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,086 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,086 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,086 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,086 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,087 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,087 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,087 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,087 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,088 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,088 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,089 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,093 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,094 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,098 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,098 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,101 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,101 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,102 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:16:50,110 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-29 05:16:50,169 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:16:50,177 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 [2021-10-29 05:16:50,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-29 05:16:50,199 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:16:50,214 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 133 transitions, 290 flow [2021-10-29 05:16:50,218 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 133 transitions, 290 flow [2021-10-29 05:16:50,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 133 transitions, 290 flow [2021-10-29 05:16:50,308 INFO L129 PetriNetUnfolder]: 10/130 cut-off events. [2021-10-29 05:16:50,309 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-29 05:16:50,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 10/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-10-29 05:16:50,318 INFO L116 LiptonReduction]: Number of co-enabled transitions 914 [2021-10-29 05:17:09,606 INFO L131 LiptonReduction]: Checked pairs total: 1266 [2021-10-29 05:17:09,606 INFO L133 LiptonReduction]: Total number of compositions: 127 [2021-10-29 05:17:09,622 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 26 transitions, 76 flow [2021-10-29 05:17:09,646 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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) [2021-10-29 05:17:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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) [2021-10-29 05:17:09,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:17:09,675 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:17:09,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:17:09,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-29 05:17:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:17:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1509692952, now seen corresponding path program 1 times [2021-10-29 05:17:09,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:17:09,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888560195] [2021-10-29 05:17:09,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:17:09,709 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:17:09,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:17:09,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:17:09,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:17:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:17:09,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:17:09,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:17:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:17:10,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:17:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:17:10,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:17:10,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888560195] [2021-10-29 05:17:10,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888560195] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:17:10,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:17:10,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:17:10,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808001193] [2021-10-29 05:17:10,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:17:10,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:17:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:17:10,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:17:10,337 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 2.7) internal successors, (216), 80 states have internal predecessors, (216), 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, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-29 05:17:10,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:17:10,365 INFO L93 Difference]: Finished difference Result 2 states and 2 transitions. [2021-10-29 05:17:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:17:10,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 19 [2021-10-29 05:17:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:17:10,375 INFO L225 Difference]: With dead ends: 2 [2021-10-29 05:17:10,376 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:17:10,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:17:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:17:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:17:10,427 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) [2021-10-29 05:17:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:17:10,429 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-10-29 05:17:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:17:10,429 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:17:10,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-10-29 05:17:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:17:10,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:17:10,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:17:10,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:17:10,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:17:10,436 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 05:17:10,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:17:10,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:17:10,655 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:17:10,657 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:17:10,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:17:10,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:17:10 BasicIcfg [2021-10-29 05:17:10,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:17:10,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:17:10,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:17:10,661 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:17:10,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:16:50" (3/4) ... [2021-10-29 05:17:10,665 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:17:10,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-29 05:17:10,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-29 05:17:10,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-29 05:17:10,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-29 05:17:10,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:17:10,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:17:10,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:17:10,736 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:17:10,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:17:10,738 INFO L168 Benchmark]: Toolchain (without parser) took 22491.29 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 29.4 MB in the beginning and 33.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,739 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:17:10,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 519.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.2 MB in the beginning and 52.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.66 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 50.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:17:10,741 INFO L168 Benchmark]: Boogie Preprocessor took 80.50 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 48.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,742 INFO L168 Benchmark]: RCFGBuilder took 1066.62 ms. Allocated memory is still 69.2 MB. Free memory was 48.5 MB in the beginning and 43.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,743 INFO L168 Benchmark]: TraceAbstraction took 20644.04 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.9 MB in the beginning and 36.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,743 INFO L168 Benchmark]: Witness Printer took 76.06 ms. Allocated memory is still 83.9 MB. Free memory was 36.6 MB in the beginning and 33.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:17:10,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 519.99 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.2 MB in the beginning and 52.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.66 ms. Allocated memory is still 69.2 MB. Free memory was 52.0 MB in the beginning and 50.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.50 ms. Allocated memory is still 69.2 MB. Free memory was 50.3 MB in the beginning and 48.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1066.62 ms. Allocated memory is still 69.2 MB. Free memory was 48.5 MB in the beginning and 43.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20644.04 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.9 MB in the beginning and 36.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 76.06 ms. Allocated memory is still 83.9 MB. Free memory was 36.6 MB in the beginning and 33.1 MB in the end (delta: 3.5 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: 19.3s, 133 PlacesBefore, 33 PlacesAfterwards, 133 TransitionsBefore, 26 TransitionsAfterwards, 914 CoEnabledTransitionPairs, 7 FixpointIterations, 78 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 127 TotalNumberOfCompositions, 1266 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1046, positive: 1006, positive conditional: 0, positive unconditional: 1006, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 612, positive: 598, positive conditional: 0, positive unconditional: 598, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 569, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 569, negative conditional: 0, negative unconditional: 569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1046, positive: 408, positive conditional: 0, positive unconditional: 408, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 612, unknown conditional: 0, unknown unconditional: 612] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 98]: 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 7 procedures, 149 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 20.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 19.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:17:10,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df0c240-cc0c-4213-83ab-e692a95b9e14/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...