./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8 --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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:19,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:19,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:19,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:19,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:19,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:19,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:19,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:19,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:19,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:19,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:19,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:19,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:19,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:19,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:19,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:19,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:19,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:19,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:19,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:19,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:19,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:19,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:19,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:19,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:19,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:19,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:19,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:19,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:19,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:19,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:19,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:19,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:19,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:19,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:19,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:19,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:19,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:19,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:19,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:19,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:19,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:32:19,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:32:19,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:32:19,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:32:19,524 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:32:19,524 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:32:19,525 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:32:19,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:32:19,526 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:32:19,534 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:32:19,534 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:32:19,535 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:32:19,536 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:32:19,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:32:19,536 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:32:19,537 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:32:19,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:32:19,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:32:19,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:32:19,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:32:19,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:32:19,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:32:19,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:32:19,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:32:19,540 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:32:19,540 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:32:19,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:32:19,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:32:19,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:32:19,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:32:19,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:32:19,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:19,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:32:19,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:32:19,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:32:19,545 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:32:19,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:32:19,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:32:19,546 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:32:19,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:32:19,547 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2021-11-07 01:32:19,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:32:19,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:32:19,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:32:19,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:32:19,953 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:32:19,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-07 01:32:20,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/4e5e96de7/7f7fdd804a794f0fb86bb3a816db645d/FLAGb71b354eb [2021-11-07 01:32:20,610 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:32:20,611 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-07 01:32:20,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/4e5e96de7/7f7fdd804a794f0fb86bb3a816db645d/FLAGb71b354eb [2021-11-07 01:32:20,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/4e5e96de7/7f7fdd804a794f0fb86bb3a816db645d [2021-11-07 01:32:20,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:32:20,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:32:20,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:20,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:32:21,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:32:21,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:20" (1/1) ... [2021-11-07 01:32:21,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a529b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:21, skipping insertion in model container [2021-11-07 01:32:21,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:20" (1/1) ... [2021-11-07 01:32:21,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:32:21,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:21,255 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-07 01:32:21,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:21,276 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) [2021-11-07 01:32:21,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5185422a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:21, skipping insertion in model container [2021-11-07 01:32:21,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:21,281 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:32:21,289 INFO L168 Benchmark]: Toolchain (without parser) took 295.43 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 78.6 MB in the end (delta: -31.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:21,291 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:32:21,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.93 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 46.9 MB in the beginning and 78.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:32:21,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 53.7 MB in the beginning and 53.7 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.93 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 46.9 MB in the beginning and 78.6 MB in the end (delta: -31.6 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: 109]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8 --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 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:32:24,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:32:24,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:32:24,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:32:24,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:32:24,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:32:24,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:32:24,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:32:24,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:32:24,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:32:24,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:32:24,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:32:24,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:32:24,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:32:24,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:32:24,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:32:24,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:32:24,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:32:24,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:32:24,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:32:24,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:32:24,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:32:24,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:32:24,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:32:24,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:32:24,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:32:24,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:32:24,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:32:24,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:32:24,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:32:24,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:32:24,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:32:24,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:32:24,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:32:24,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:32:24,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:32:24,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:32:24,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:32:24,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:32:24,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:32:24,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:32:24,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:32:24,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:32:24,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:32:24,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:32:24,248 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:32:24,248 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:32:24,249 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:32:24,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:32:24,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:32:24,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:32:24,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:32:24,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:32:24,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:32:24,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:32:24,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:32:24,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:32:24,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:32:24,255 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:32:24,255 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:32:24,256 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:32:24,256 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:32:24,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:32:24,257 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:32:24,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:32:24,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:32:24,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:32:24,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:32:24,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:24,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:32:24,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:32:24,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:32:24,260 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:32:24,260 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:32:24,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:32:24,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:32:24,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:32:24,261 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 251696ec6cec82b3ac56ff493f8f4412eaff7e5010650cc9da1e4c426de80d8c [2021-11-07 01:32:24,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:32:24,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:32:24,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:32:24,826 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:32:24,827 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:32:24,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-07 01:32:24,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/5c2857a28/213383f1fa084865bf380353030147f6/FLAGbaec050a3 [2021-11-07 01:32:25,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:32:25,637 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c [2021-11-07 01:32:25,648 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/5c2857a28/213383f1fa084865bf380353030147f6/FLAGbaec050a3 [2021-11-07 01:32:25,973 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/data/5c2857a28/213383f1fa084865bf380353030147f6 [2021-11-07 01:32:25,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:32:25,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:32:25,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:25,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:32:25,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:32:25,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:25" (1/1) ... [2021-11-07 01:32:25,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2debd41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:25, skipping insertion in model container [2021-11-07 01:32:25,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:25" (1/1) ... [2021-11-07 01:32:26,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:32:26,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:26,247 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-07 01:32:26,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:26,289 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:32:26,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:32:26,368 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-07 01:32:26,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:26,394 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:32:26,442 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_ed876eba-5ee3-450b-bb34-59cc671d8e25/sv-benchmarks/c/weaver/popl20-more-max-array-hom.wvr.c[2586,2599] [2021-11-07 01:32:26,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:32:26,493 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:32:26,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26 WrapperNode [2021-11-07 01:32:26,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:32:26,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:32:26,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:32:26,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:32:26,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:32:26,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:32:26,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:32:26,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:32:26,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:32:26,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:32:26,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:32:26,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:32:26,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (1/1) ... [2021-11-07 01:32:26,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:32:26,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:32:26,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:32:26,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:32:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 01:32:26,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 01:32:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 01:32:26,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 01:32:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 01:32:26,786 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 01:32:26,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:32:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:32:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 01:32:26,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 01:32:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:32:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:32:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:32:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:32:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:32:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:32:26,791 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 01:32:27,817 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:32:27,817 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-07 01:32:27,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:32:27 BoogieIcfgContainer [2021-11-07 01:32:27,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:32:27,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:32:27,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:32:27,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:32:27,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:32:25" (1/3) ... [2021-11-07 01:32:27,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f87c29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:32:27, skipping insertion in model container [2021-11-07 01:32:27,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:26" (2/3) ... [2021-11-07 01:32:27,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f87c29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:32:27, skipping insertion in model container [2021-11-07 01:32:27,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:32:27" (3/3) ... [2021-11-07 01:32:27,831 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array-hom.wvr.c [2021-11-07 01:32:27,839 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 01:32:27,840 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:32:27,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:32:27,840 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 01:32:27,909 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,909 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,910 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,911 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,911 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,912 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,912 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,913 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,913 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,914 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,915 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,915 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,916 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,916 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,917 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,918 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,919 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,919 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,919 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,920 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,920 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,921 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,921 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,922 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,922 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,923 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,923 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,923 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,924 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,924 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,925 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,925 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,926 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,926 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,927 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,928 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,928 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,929 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,929 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,930 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,931 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,931 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,932 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,934 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,934 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,935 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,935 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,935 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,936 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,936 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,936 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,937 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,937 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,938 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,938 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,938 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,939 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,939 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,940 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,940 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,941 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,942 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,943 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,946 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,946 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,947 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,947 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,949 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,950 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,954 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,955 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,962 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,963 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,963 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,967 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,967 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,967 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,968 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,968 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,972 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,973 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,973 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,974 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 01:32:27,983 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-07 01:32:28,053 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:32:28,061 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 [2021-11-07 01:32:28,061 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 01:32:28,081 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-07 01:32:28,094 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 142 transitions, 308 flow [2021-11-07 01:32:28,099 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 142 transitions, 308 flow [2021-11-07 01:32:28,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 139 places, 142 transitions, 308 flow [2021-11-07 01:32:28,225 INFO L129 PetriNetUnfolder]: 13/139 cut-off events. [2021-11-07 01:32:28,226 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-07 01:32:28,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 13/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 96 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2021-11-07 01:32:28,238 INFO L116 LiptonReduction]: Number of co-enabled transitions 1320 [2021-11-07 01:32:47,185 INFO L131 LiptonReduction]: Checked pairs total: 1501 [2021-11-07 01:32:47,186 INFO L133 LiptonReduction]: Total number of compositions: 135 [2021-11-07 01:32:47,205 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 28 transitions, 80 flow [2021-11-07 01:32:47,224 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:47,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:47,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:32:47,245 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:47,245 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:47,246 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 01:32:47,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:47,254 INFO L85 PathProgramCache]: Analyzing trace with hash -118355113, now seen corresponding path program 1 times [2021-11-07 01:32:47,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:47,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957085731] [2021-11-07 01:32:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:47,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:47,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:47,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:47,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:32:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:47,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:32:47,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:47,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:32:47,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:32:48,569 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:32:48,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957085731] [2021-11-07 01:32:48,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957085731] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:32:48,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:32:48,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 2 [2021-11-07 01:32:48,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535406922] [2021-11-07 01:32:48,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:32:48,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:32:48,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:32:48,597 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 3.0849056603773586) internal successors, (327), 106 states have internal predecessors, (327), 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 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:48,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:48,670 INFO L93 Difference]: Finished difference Result 204 states and 632 transitions. [2021-11-07 01:32:48,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:32:48,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 20 [2021-11-07 01:32:48,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:48,688 INFO L225 Difference]: With dead ends: 204 [2021-11-07 01:32:48,688 INFO L226 Difference]: Without dead ends: 197 [2021-11-07 01:32:48,689 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:32:48,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-07 01:32:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-07 01:32:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 3.13265306122449) internal successors, (614), 196 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 614 transitions. [2021-11-07 01:32:48,754 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 614 transitions. Word has length 20 [2021-11-07 01:32:48,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:48,755 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 614 transitions. [2021-11-07 01:32:48,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 614 transitions. [2021-11-07 01:32:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:32:48,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:48,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:48,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:48,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:32:48,974 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 01:32:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1145268432, now seen corresponding path program 1 times [2021-11-07 01:32:48,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:48,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665778032] [2021-11-07 01:32:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:48,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:48,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:48,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:49,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:32:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:49,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:32:49,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:49,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:49,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:32:49,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665778032] [2021-11-07 01:32:49,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665778032] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:32:49,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:32:49,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:32:49,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235704543] [2021-11-07 01:32:49,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:32:49,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:49,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:32:49,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:32:49,470 INFO L87 Difference]: Start difference. First operand 197 states and 614 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:49,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:49,584 INFO L93 Difference]: Finished difference Result 173 states and 548 transitions. [2021-11-07 01:32:49,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:32:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 01:32:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:49,589 INFO L225 Difference]: With dead ends: 173 [2021-11-07 01:32:49,589 INFO L226 Difference]: Without dead ends: 173 [2021-11-07 01:32:49,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:32:49,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-07 01:32:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 133. [2021-11-07 01:32:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 3.121212121212121) internal successors, (412), 132 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:49,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 412 transitions. [2021-11-07 01:32:49,608 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 412 transitions. Word has length 21 [2021-11-07 01:32:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:49,608 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 412 transitions. [2021-11-07 01:32:49,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 412 transitions. [2021-11-07 01:32:49,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:32:49,611 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:49,611 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:49,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:49,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:32:49,827 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 01:32:49,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:49,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1454006564, now seen corresponding path program 1 times [2021-11-07 01:32:49,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:49,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684167584] [2021-11-07 01:32:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:49,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:49,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:49,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:49,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:32:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:50,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 01:32:50,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:50,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:50,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:32:50,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:32:50,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684167584] [2021-11-07 01:32:50,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684167584] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 01:32:50,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 01:32:50,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-07 01:32:50,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674509798] [2021-11-07 01:32:50,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:32:50,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:50,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:32:50,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:32:50,276 INFO L87 Difference]: Start difference. First operand 133 states and 412 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2021-11-07 01:32:50,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:50,314 INFO L93 Difference]: Finished difference Result 134 states and 413 transitions. [2021-11-07 01:32:50,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:32:50,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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 21 [2021-11-07 01:32:50,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:50,318 INFO L225 Difference]: With dead ends: 134 [2021-11-07 01:32:50,318 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 01:32:50,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:32:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 01:32:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-07 01:32:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 3.1052631578947367) internal successors, (413), 133 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 413 transitions. [2021-11-07 01:32:50,331 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 413 transitions. Word has length 21 [2021-11-07 01:32:50,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:50,331 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 413 transitions. [2021-11-07 01:32:50,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 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) [2021-11-07 01:32:50,332 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 413 transitions. [2021-11-07 01:32:50,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:32:50,334 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:50,334 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:50,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:50,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:32:50,546 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 01:32:50,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:50,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2097297406, now seen corresponding path program 1 times [2021-11-07 01:32:50,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:50,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144706295] [2021-11-07 01:32:50,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:50,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:50,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:50,549 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:50,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:32:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:50,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 01:32:50,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:51,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 01:32:51,258 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:32:51,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144706295] [2021-11-07 01:32:51,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144706295] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 01:32:51,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 01:32:51,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2021-11-07 01:32:51,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453739810] [2021-11-07 01:32:51,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:32:51,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:32:51,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:32:51,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:32:51,260 INFO L87 Difference]: Start difference. First operand 134 states and 413 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:51,403 INFO L93 Difference]: Finished difference Result 166 states and 519 transitions. [2021-11-07 01:32:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:32:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2021-11-07 01:32:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:51,407 INFO L225 Difference]: With dead ends: 166 [2021-11-07 01:32:51,407 INFO L226 Difference]: Without dead ends: 166 [2021-11-07 01:32:51,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:32:51,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-07 01:32:51,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-11-07 01:32:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 3.1454545454545455) internal successors, (519), 165 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 519 transitions. [2021-11-07 01:32:51,419 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 519 transitions. Word has length 22 [2021-11-07 01:32:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:51,420 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 519 transitions. [2021-11-07 01:32:51,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:51,420 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 519 transitions. [2021-11-07 01:32:51,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:32:51,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:51,423 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:51,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:51,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:32:51,643 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-07 01:32:51,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:51,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1179517079, now seen corresponding path program 1 times [2021-11-07 01:32:51,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:32:51,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90509165] [2021-11-07 01:32:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:51,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:32:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:32:51,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:32:51,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:32:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:52,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 01:32:52,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:52,111 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 215 treesize of output 207 [2021-11-07 01:32:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:53,644 INFO L354 Elim1Store]: treesize reduction 923, result has 6.4 percent of original size [2021-11-07 01:32:53,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 137 treesize of output 113 [2021-11-07 01:32:58,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:58,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:58,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:58,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:58,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:58,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:42,828 WARN L207 SmtUtils]: Spent 2.73 m on a formula simplification. DAG size of input: 347 DAG size of output: 123 [2021-11-07 01:35:42,830 INFO L354 Elim1Store]: treesize reduction 1666, result has 20.1 percent of original size [2021-11-07 01:35:42,831 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 39 case distinctions, treesize of input 179 treesize of output 490 [2021-11-07 01:40:54,115 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-07 01:40:54,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:54,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90509165] [2021-11-07 01:40:54,121 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-07 01:40:54,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1123476136] [2021-11-07 01:40:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:54,121 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:40:54,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:40:54,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-07 01:40:54,122 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:40:54,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-07 01:40:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:54,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-07 01:40:54,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:54,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 01:40:54,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556884291] [2021-11-07 01:40:54,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:54,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:40:54,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:54,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:40:54,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:40:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:55,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 01:40:55,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:55,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-07 01:40:55,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:55,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 01:40:55,103 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 01:40:55,103 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 01:40:55,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:40:55,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 01:40:55,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 01:40:55,114 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 01:40:55,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:55,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:55,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:55,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed876eba-5ee3-450b-bb34-59cc671d8e25/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:55,717 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-07 01:40:55,720 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 01:40:55,721 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:40:55,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:40:55 BasicIcfg [2021-11-07 01:40:55,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:40:55,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:40:55,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:40:55,740 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:40:55,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:32:27" (3/4) ... [2021-11-07 01:40:55,743 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:40:55,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:40:55,744 INFO L168 Benchmark]: Toolchain (without parser) took 509759.14 ms. Allocated memory was 54.5 MB in the beginning and 96.5 MB in the end (delta: 41.9 MB). Free memory was 33.2 MB in the beginning and 43.3 MB in the end (delta: -10.2 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,744 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 54.5 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:40:55,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.83 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 33.0 MB in the beginning and 61.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.95 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 59.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,746 INFO L168 Benchmark]: Boogie Preprocessor took 86.86 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 58.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,747 INFO L168 Benchmark]: RCFGBuilder took 1152.90 ms. Allocated memory is still 79.7 MB. Free memory was 57.7 MB in the beginning and 55.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,747 INFO L168 Benchmark]: TraceAbstraction took 507916.48 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 55.3 MB in the beginning and 44.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:55,748 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 96.5 MB. Free memory was 44.3 MB in the beginning and 43.3 MB in the end (delta: 944.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:40:55,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 54.5 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.83 ms. Allocated memory was 54.5 MB in the beginning and 79.7 MB in the end (delta: 25.2 MB). Free memory was 33.0 MB in the beginning and 61.4 MB in the end (delta: -28.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.95 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 59.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.86 ms. Allocated memory is still 79.7 MB. Free memory was 59.5 MB in the beginning and 58.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1152.90 ms. Allocated memory is still 79.7 MB. Free memory was 57.7 MB in the beginning and 55.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 507916.48 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 55.3 MB in the beginning and 44.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.75 ms. Allocated memory is still 96.5 MB. Free memory was 44.3 MB in the beginning and 43.3 MB in the end (delta: 944.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.0s, 139 PlacesBefore, 34 PlacesAfterwards, 142 TransitionsBefore, 28 TransitionsAfterwards, 1320 CoEnabledTransitionPairs, 7 FixpointIterations, 74 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 6 ConcurrentYvCompositions, 9 ChoiceCompositions, 135 TotalNumberOfCompositions, 1501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1424, positive: 1392, positive conditional: 0, positive unconditional: 1392, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 897, positive: 887, positive conditional: 0, positive unconditional: 887, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 897, positive: 887, positive conditional: 0, positive unconditional: 887, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 599, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 599, negative conditional: 0, negative unconditional: 599, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1424, positive: 505, positive conditional: 0, positive unconditional: 505, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 897, unknown conditional: 0, unknown unconditional: 897] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - 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 - UnprovableResult [Line: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* A; [L41] 0 int max1, max2, max3, M, N; [L82] 0 pthread_t t1, t2, t3; [L85] 0 M = __VERIFIER_nondet_int() [L86] 0 N = __VERIFIER_nondet_int() [L37] COND FALSE 0 !(!cond) [L37] COND TRUE 0 !cond [L109] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L110] 0 int i = 0; [L110] COND TRUE 0 i < size [L111] 0 arr[i] = __VERIFIER_nondet_int() [L110] 0 i++ [L110] COND FALSE 0 !(i < size) [L113] 0 return arr; [L87] 0 A = create_fresh_int_array(N) [L37] COND TRUE 0 !cond [L92] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L46] 1 int i=0; [L46] COND TRUE 1 i