./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH --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 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:41:57,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:41:57,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:41:57,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:41:57,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:41:57,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:41:57,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:41:57,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:41:57,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:41:57,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:41:57,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:41:57,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:41:57,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:41:57,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:41:57,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:41:57,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:41:57,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:41:57,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:41:57,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:41:57,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:41:57,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:41:57,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:41:57,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:41:57,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:41:57,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:41:57,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:41:57,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:41:57,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:41:57,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:41:57,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:41:57,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:41:57,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:41:57,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:41:57,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:41:57,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:41:57,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:41:57,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:41:57,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:41:57,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:41:57,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:41:57,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:41:57,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:41:57,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:41:57,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:41:57,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:41:57,492 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:41:57,492 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:41:57,493 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:41:57,493 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:41:57,493 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:41:57,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:41:57,500 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:41:57,501 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:41:57,501 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:41:57,501 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:41:57,502 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:41:57,502 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:41:57,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:41:57,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:41:57,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:41:57,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:41:57,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:41:57,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:41:57,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:41:57,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:41:57,504 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:41:57,504 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:41:57,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:41:57,505 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:41:57,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:41:57,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:41:57,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:41:57,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:41:57,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:41:57,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:41:57,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:41:57,508 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:41:57,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:41:57,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:41:57,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:41:57,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:41:57,509 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 [2021-11-03 05:41:57,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:41:57,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:41:57,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:41:57,845 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:41:57,846 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:41:57,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-11-03 05:41:57,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/d96be2d0a/f2dc40f51c524722a139db20e6a98df3/FLAG15ba52f8f [2021-11-03 05:41:58,348 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:41:58,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-11-03 05:41:58,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/d96be2d0a/f2dc40f51c524722a139db20e6a98df3/FLAG15ba52f8f [2021-11-03 05:41:58,783 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/d96be2d0a/f2dc40f51c524722a139db20e6a98df3 [2021-11-03 05:41:58,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:41:58,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:41:58,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:58,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:41:58,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:41:58,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:58" (1/1) ... [2021-11-03 05:41:58,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46603b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:58, skipping insertion in model container [2021-11-03 05:41:58,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:41:58" (1/1) ... [2021-11-03 05:41:58,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:41:58,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:41:59,065 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-11-03 05:41:59,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:41:59,100 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) [2021-11-03 05:41:59,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7a7a3606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:41:59, skipping insertion in model container [2021-11-03 05:41:59,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:41:59,102 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:41:59,105 INFO L168 Benchmark]: Toolchain (without parser) took 308.71 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.6 MB in the beginning and 85.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:59,107 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:41:59,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.06 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.3 MB in the beginning and 85.4 MB in the end (delta: -32.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:41:59,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.06 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.3 MB in the beginning and 85.4 MB in the end (delta: -32.1 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 164]: 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH --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 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:42:01,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:42:01,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:42:01,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:42:01,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:42:01,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:42:01,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:42:01,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:42:01,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:42:01,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:42:01,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:42:01,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:42:01,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:42:01,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:42:01,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:42:01,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:42:01,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:42:01,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:42:01,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:42:01,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:42:01,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:42:01,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:42:01,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:42:01,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:42:01,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:42:01,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:42:01,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:42:01,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:42:01,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:42:01,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:42:01,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:42:01,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:42:01,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:42:01,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:42:01,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:42:01,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:42:01,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:42:01,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:42:01,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:42:01,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:42:01,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:42:01,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:42:01,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:42:01,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:42:01,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:42:01,709 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:42:01,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:42:01,710 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:42:01,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:42:01,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:42:01,711 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:42:01,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:42:01,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:42:01,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:42:01,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:42:01,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:42:01,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:42:01,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:42:01,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:42:01,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:42:01,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:42:01,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:42:01,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:42:01,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:42:01,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:42:01,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:42:01,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:42:01,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:42:01,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:01,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:42:01,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:42:01,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:42:01,718 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:42:01,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:42:01,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:42:01,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:42:01,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:42:01,720 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 675e4a71573eb5ca191c78078c954ea41743d39a46f0fa586376ee48e7dc4190 [2021-11-03 05:42:02,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:42:02,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:42:02,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:42:02,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:42:02,170 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:42:02,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-11-03 05:42:02,246 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/2a5525856/c15cd8556a9f4f9eba2046f90e1e0322/FLAGa0c125f7d [2021-11-03 05:42:02,829 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:42:02,829 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c [2021-11-03 05:42:02,843 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/2a5525856/c15cd8556a9f4f9eba2046f90e1e0322/FLAGa0c125f7d [2021-11-03 05:42:03,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/data/2a5525856/c15cd8556a9f4f9eba2046f90e1e0322 [2021-11-03 05:42:03,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:42:03,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:42:03,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:03,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:42:03,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:42:03,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374258d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03, skipping insertion in model container [2021-11-03 05:42:03,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:42:03,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:03,480 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-11-03 05:42:03,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:03,507 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:42:03,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:03,572 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_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-11-03 05:42:03,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:03,594 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:42:03,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/sv-benchmarks/c/weaver/popl20-more-buffer-series.wvr.c[4351,4364] [2021-11-03 05:42:03,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:03,650 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:42:03,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03 WrapperNode [2021-11-03 05:42:03,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:03,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:03,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:42:03,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:42:03,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:03,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:42:03,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:42:03,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:42:03,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:42:03,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:42:03,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:42:03,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:42:03,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (1/1) ... [2021-11-03 05:42:03,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:03,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:42:03,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:42:03,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:42:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:42:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:42:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:42:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-03 05:42:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-03 05:42:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-03 05:42:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-03 05:42:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-03 05:42:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-03 05:42:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-03 05:42:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-03 05:42:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-03 05:42:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-03 05:42:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:42:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:42:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:42:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:42:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:42:03,876 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 05:42:05,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:42:05,839 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-03 05:42:05,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:05 BoogieIcfgContainer [2021-11-03 05:42:05,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:42:05,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:42:05,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:42:05,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:42:05,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:03" (1/3) ... [2021-11-03 05:42:05,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fb7e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:05, skipping insertion in model container [2021-11-03 05:42:05,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:03" (2/3) ... [2021-11-03 05:42:05,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53fb7e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:42:05, skipping insertion in model container [2021-11-03 05:42:05,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:05" (3/3) ... [2021-11-03 05:42:05,850 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series.wvr.c [2021-11-03 05:42:05,856 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 05:42:05,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:42:05,856 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:42:05,857 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 05:42:05,928 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,930 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,932 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,932 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,933 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,934 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,934 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,935 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,935 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,935 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,938 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,939 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,940 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,940 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,941 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,941 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,941 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,942 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,942 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,942 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,942 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,942 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,943 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,944 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,945 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,945 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,947 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,947 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,948 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,952 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,952 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,952 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,953 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,953 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,953 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,954 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,954 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,955 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,957 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,957 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,961 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,961 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,961 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,962 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,962 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,962 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,962 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,963 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,963 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,963 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,964 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,965 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,966 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,966 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,966 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,966 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,970 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,971 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,973 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,973 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_~cond~3 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,974 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,975 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,975 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,975 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,975 WARN L313 ript$VariableManager]: TermVariabe thread4Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,975 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,977 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,978 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,979 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,981 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,982 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,982 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_~cond~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,984 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,984 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_plus_~a not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,985 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,986 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 05:42:05,993 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-03 05:42:06,052 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:42:06,061 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 [2021-11-03 05:42:06,061 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-03 05:42:06,084 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 05:42:06,094 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 224 places, 233 transitions, 498 flow [2021-11-03 05:42:06,097 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 224 places, 233 transitions, 498 flow [2021-11-03 05:42:06,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 233 transitions, 498 flow [2021-11-03 05:42:06,244 INFO L129 PetriNetUnfolder]: 22/229 cut-off events. [2021-11-03 05:42:06,244 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-03 05:42:06,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 229 events. 22/229 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 131 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2021-11-03 05:42:06,254 INFO L116 LiptonReduction]: Number of co-enabled transitions 2000 [2021-11-03 05:42:38,849 INFO L131 LiptonReduction]: Checked pairs total: 3841 [2021-11-03 05:42:38,849 INFO L133 LiptonReduction]: Total number of compositions: 226 [2021-11-03 05:42:38,857 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 44 transitions, 120 flow [2021-11-03 05:42:38,933 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 855 states, 854 states have (on average 4.17096018735363) internal successors, (3562), 854 states have internal predecessors, (3562), 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) [2021-11-03 05:42:38,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 855 states, 854 states have (on average 4.17096018735363) internal successors, (3562), 854 states have internal predecessors, (3562), 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) [2021-11-03 05:42:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 05:42:38,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:38,965 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, 1, 1, 1, 1, 1] [2021-11-03 05:42:38,965 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:42:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1479702764, now seen corresponding path program 1 times [2021-11-03 05:42:38,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:38,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356573370] [2021-11-03 05:42:38,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:38,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:38,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:38,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:39,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:42:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:39,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:39,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:39,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:39,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:39,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356573370] [2021-11-03 05:42:39,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356573370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:39,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:39,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 05:42:39,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184981482] [2021-11-03 05:42:39,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:42:39,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:39,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:42:39,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:42:39,643 INFO L87 Difference]: Start difference. First operand has 855 states, 854 states have (on average 4.17096018735363) internal successors, (3562), 854 states have internal predecessors, (3562), 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 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:39,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:39,737 INFO L93 Difference]: Finished difference Result 1262 states and 5287 transitions. [2021-11-03 05:42:39,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:42:39,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-03 05:42:39,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:39,775 INFO L225 Difference]: With dead ends: 1262 [2021-11-03 05:42:39,775 INFO L226 Difference]: Without dead ends: 1217 [2021-11-03 05:42:39,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:42:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-03 05:42:39,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2021-11-03 05:42:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 4.194078947368421) internal successors, (5100), 1216 states have internal predecessors, (5100), 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) [2021-11-03 05:42:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 5100 transitions. [2021-11-03 05:42:39,958 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 5100 transitions. Word has length 28 [2021-11-03 05:42:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:39,959 INFO L470 AbstractCegarLoop]: Abstraction has 1217 states and 5100 transitions. [2021-11-03 05:42:39,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 5100 transitions. [2021-11-03 05:42:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 05:42:39,975 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:39,975 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:39,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:40,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:40,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:42:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:40,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1168360533, now seen corresponding path program 1 times [2021-11-03 05:42:40,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:40,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434352689] [2021-11-03 05:42:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:40,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:40,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:40,191 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:40,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:42:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:40,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:42:40,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:40,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:41,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:41,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434352689] [2021-11-03 05:42:41,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434352689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:41,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:41,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:42:41,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080285222] [2021-11-03 05:42:41,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 05:42:41,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:41,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 05:42:41,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:41,061 INFO L87 Difference]: Start difference. First operand 1217 states and 5100 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-11-03 05:42:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:41,350 INFO L93 Difference]: Finished difference Result 1895 states and 7638 transitions. [2021-11-03 05:42:41,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:42:41,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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 30 [2021-11-03 05:42:41,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:41,372 INFO L225 Difference]: With dead ends: 1895 [2021-11-03 05:42:41,372 INFO L226 Difference]: Without dead ends: 1809 [2021-11-03 05:42:41,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:42:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2021-11-03 05:42:41,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1505. [2021-11-03 05:42:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 4.13563829787234) internal successors, (6220), 1504 states have internal predecessors, (6220), 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) [2021-11-03 05:42:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 6220 transitions. [2021-11-03 05:42:41,481 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 6220 transitions. Word has length 30 [2021-11-03 05:42:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:41,482 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 6220 transitions. [2021-11-03 05:42:41,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-11-03 05:42:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 6220 transitions. [2021-11-03 05:42:41,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 05:42:41,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:41,491 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:41,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:41,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:41,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:42:41,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:41,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1650930629, now seen corresponding path program 1 times [2021-11-03 05:42:41,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:41,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830827037] [2021-11-03 05:42:41,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:41,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:41,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:41,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:41,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:42:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:41,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:41,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:42,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:42,295 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:42,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830827037] [2021-11-03 05:42:42,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830827037] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:42,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:42,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:42:42,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133399497] [2021-11-03 05:42:42,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:42,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:42,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:42,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:42,298 INFO L87 Difference]: Start difference. First operand 1505 states and 6220 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-03 05:42:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:42,376 INFO L93 Difference]: Finished difference Result 1939 states and 7722 transitions. [2021-11-03 05:42:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:42:42,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 30 [2021-11-03 05:42:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:42,397 INFO L225 Difference]: With dead ends: 1939 [2021-11-03 05:42:42,398 INFO L226 Difference]: Without dead ends: 1855 [2021-11-03 05:42:42,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2021-11-03 05:42:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1753. [2021-11-03 05:42:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1753 states, 1752 states have (on average 4.05365296803653) internal successors, (7102), 1752 states have internal predecessors, (7102), 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) [2021-11-03 05:42:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 7102 transitions. [2021-11-03 05:42:42,511 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 7102 transitions. Word has length 30 [2021-11-03 05:42:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:42,512 INFO L470 AbstractCegarLoop]: Abstraction has 1753 states and 7102 transitions. [2021-11-03 05:42:42,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-03 05:42:42,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 7102 transitions. [2021-11-03 05:42:42,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:42:42,521 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:42,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:42,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:42,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:42,736 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:42:42,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:42,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1258374526, now seen corresponding path program 1 times [2021-11-03 05:42:42,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:42,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677190985] [2021-11-03 05:42:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:42,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:42,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:42,738 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:42,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:42:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:42,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:42:42,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:42:43,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:42:43,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:43,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677190985] [2021-11-03 05:42:43,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677190985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:43,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:43,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 05:42:43,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127043209] [2021-11-03 05:42:43,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:43,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:43,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:43,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:43,211 INFO L87 Difference]: Start difference. First operand 1753 states and 7102 transitions. Second operand has 4 states, 4 states have (on average 10.0) 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) [2021-11-03 05:42:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:43,220 INFO L93 Difference]: Finished difference Result 661 states and 2277 transitions. [2021-11-03 05:42:43,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:42:43,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) 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 32 [2021-11-03 05:42:43,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:43,228 INFO L225 Difference]: With dead ends: 661 [2021-11-03 05:42:43,228 INFO L226 Difference]: Without dead ends: 629 [2021-11-03 05:42:43,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:43,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-11-03 05:42:43,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2021-11-03 05:42:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 628 states have (on average 3.4729299363057327) internal successors, (2181), 628 states have internal predecessors, (2181), 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) [2021-11-03 05:42:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 2181 transitions. [2021-11-03 05:42:43,257 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 2181 transitions. Word has length 32 [2021-11-03 05:42:43,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:43,257 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 2181 transitions. [2021-11-03 05:42:43,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) 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) [2021-11-03 05:42:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 2181 transitions. [2021-11-03 05:42:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-03 05:42:43,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:43,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:43,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:43,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:43,474 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-03 05:42:43,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:43,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1359952924, now seen corresponding path program 1 times [2021-11-03 05:42:43,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:43,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989555172] [2021-11-03 05:42:43,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:43,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:43,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:43,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:43,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:42:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:43,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:42:43,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:42:43,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:44,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:42:44,073 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:44,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989555172] [2021-11-03 05:42:44,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989555172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:44,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:44,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:42:44,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011904639] [2021-11-03 05:42:44,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:44,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:44,084 INFO L87 Difference]: Start difference. First operand 629 states and 2181 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-03 05:42:44,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:44,110 INFO L93 Difference]: Finished difference Result 155 states and 414 transitions. [2021-11-03 05:42:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:42:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 32 [2021-11-03 05:42:44,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:44,114 INFO L225 Difference]: With dead ends: 155 [2021-11-03 05:42:44,114 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 05:42:44,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 05:42:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 05:42:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 05:42:44,115 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-11-03 05:42:44,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:44,115 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 05:42:44,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-11-03 05:42:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 05:42:44,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 05:42:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:42:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 05:42:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 05:42:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-03 05:42:44,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-03 05:42:44,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:44,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:44,321 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-03 05:42:44,324 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 05:42:44,324 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:42:44,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:42:44 BasicIcfg [2021-11-03 05:42:44,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:42:44,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:42:44,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:42:44,326 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:42:44,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:42:05" (3/4) ... [2021-11-03 05:42:44,339 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 05:42:44,344 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-03 05:42:44,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-03 05:42:44,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-03 05:42:44,345 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-11-03 05:42:44,357 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-03 05:42:44,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 05:42:44,358 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:42:44,359 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:42:44,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:42:44,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:42:44,429 INFO L168 Benchmark]: Toolchain (without parser) took 41267.09 ms. Allocated memory was 54.5 MB in the beginning and 111.1 MB in the end (delta: 56.6 MB). Free memory was 32.8 MB in the beginning and 42.4 MB in the end (delta: -9.6 MB). Peak memory consumption was 47.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,430 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:44,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.27 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 32.6 MB in the beginning and 54.7 MB in the end (delta: -22.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 75.5 MB. Free memory was 54.7 MB in the beginning and 51.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,431 INFO L168 Benchmark]: Boogie Preprocessor took 54.26 ms. Allocated memory is still 75.5 MB. Free memory was 51.9 MB in the beginning and 49.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,432 INFO L168 Benchmark]: RCFGBuilder took 2076.16 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 35.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,432 INFO L168 Benchmark]: TraceAbstraction took 38482.20 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 34.7 MB in the beginning and 47.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,433 INFO L168 Benchmark]: Witness Printer took 101.75 ms. Allocated memory is still 111.1 MB. Free memory was 47.1 MB in the beginning and 42.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:44,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.27 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 32.6 MB in the beginning and 54.7 MB in the end (delta: -22.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 75.5 MB. Free memory was 54.7 MB in the beginning and 51.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.26 ms. Allocated memory is still 75.5 MB. Free memory was 51.9 MB in the beginning and 49.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2076.16 ms. Allocated memory is still 75.5 MB. Free memory was 49.5 MB in the beginning and 35.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 38482.20 ms. Allocated memory was 75.5 MB in the beginning and 111.1 MB in the end (delta: 35.7 MB). Free memory was 34.7 MB in the beginning and 47.1 MB in the end (delta: -12.4 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * Witness Printer took 101.75 ms. Allocated memory is still 111.1 MB. Free memory was 47.1 MB in the beginning and 42.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.7s, 224 PlacesBefore, 50 PlacesAfterwards, 233 TransitionsBefore, 44 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 7 FixpointIterations, 145 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 8 ConcurrentYvCompositions, 15 ChoiceCompositions, 226 TotalNumberOfCompositions, 3841 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2925, positive: 2825, positive conditional: 0, positive unconditional: 2825, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1329, positive: 1308, positive conditional: 0, positive unconditional: 1308, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1329, positive: 1307, positive conditional: 0, positive unconditional: 1307, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1290, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 1238, negative conditional: 0, negative unconditional: 1238, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2925, positive: 1517, positive conditional: 0, positive unconditional: 1517, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 1329, unknown conditional: 0, unknown unconditional: 1329] , Statistics on independence cache: Total cache size (in pairs): 201, Positive cache size: 189, Positive conditional cache size: 0, Positive unconditional cache size: 189, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 246 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 38.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 32.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 175 SDtfs, 202 SDslu, 226 SDs, 0 SdLazy, 88 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 295 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1753occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 406 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 922 SizeOfPredicates, 24 NumberOfNonLiveVariables, 828 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-03 05:42:44,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99d0990c-ca8b-4322-b438-c1860ed19b2e/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE