./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs --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 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:43:16,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:43:16,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:43:16,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:43:16,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:43:16,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:43:16,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:43:16,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:43:16,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:43:16,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:43:16,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:43:16,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:43:16,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:43:16,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:43:16,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:43:16,964 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:43:16,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:43:16,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:43:16,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:43:16,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:43:16,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:43:16,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:43:16,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:43:16,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:43:16,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:43:16,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:43:16,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:43:16,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:43:16,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:43:16,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:43:16,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:43:16,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:43:16,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:43:16,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:43:16,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:43:16,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:43:16,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:43:16,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:43:16,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:43:16,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:43:16,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:43:16,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:43:17,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:43:17,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:43:17,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:43:17,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:43:17,028 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:43:17,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:43:17,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:43:17,029 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:43:17,029 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:43:17,029 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:43:17,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:43:17,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:43:17,030 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:43:17,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:43:17,034 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:43:17,034 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:43:17,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:43:17,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:43:17,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:43:17,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:43:17,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:43:17,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:43:17,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:43:17,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:43:17,037 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:43:17,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:43:17,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:43:17,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:43:17,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:43:17,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:43:17,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:43:17,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:17,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:43:17,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:43:17,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:43:17,041 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:43:17,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:43:17,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:43:17,042 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:43:17,042 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:43:17,042 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2021-11-19 13:43:17,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:43:17,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:43:17,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:43:17,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:43:17,292 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:43:17,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-19 13:43:17,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/2eb000660/e1e860f3ef534a8a9d2a83e9b70ce5da/FLAG76a0f1d7d [2021-11-19 13:43:17,823 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:43:17,824 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-19 13:43:17,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/2eb000660/e1e860f3ef534a8a9d2a83e9b70ce5da/FLAG76a0f1d7d [2021-11-19 13:43:18,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/2eb000660/e1e860f3ef534a8a9d2a83e9b70ce5da [2021-11-19 13:43:18,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:43:18,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:43:18,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:18,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:43:18,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:43:18,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:18" (1/1) ... [2021-11-19 13:43:18,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2332e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:18, skipping insertion in model container [2021-11-19 13:43:18,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:18" (1/1) ... [2021-11-19 13:43:18,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:43:18,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:18,537 WARN L230 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-19 13:43:18,546 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:18,555 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) [2021-11-19 13:43:18,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a28871d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:18, skipping insertion in model container [2021-11-19 13:43:18,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:18,556 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:43:18,558 INFO L158 Benchmark]: Toolchain (without parser) took 322.86ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 77.8MB in the beginning and 109.8MB in the end (delta: -32.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:43:18,559 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:43:18,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.37ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 77.5MB in the beginning and 109.8MB in the end (delta: -32.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:43:18,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.37ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 77.5MB in the beginning and 109.8MB in the end (delta: -32.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 163]: 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs --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 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:43:20,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:43:20,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:43:20,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:43:20,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:43:20,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:43:20,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:43:20,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:43:20,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:43:20,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:43:20,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:43:20,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:43:20,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:43:20,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:43:20,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:43:20,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:43:20,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:43:20,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:43:20,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:43:20,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:43:20,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:43:20,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:43:20,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:43:20,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:43:20,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:43:20,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:43:20,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:43:20,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:43:20,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:43:20,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:43:20,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:43:20,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:43:20,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:43:20,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:43:20,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:43:20,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:43:20,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:43:20,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:43:20,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:43:20,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:43:20,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:43:20,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 13:43:20,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:43:20,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:43:20,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:43:20,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:43:20,950 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:43:20,950 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:43:20,950 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:43:20,951 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:43:20,951 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:43:20,951 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:43:20,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:43:20,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:43:20,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:43:20,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:43:20,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:43:20,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:43:20,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:43:20,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:43:20,955 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:43:20,955 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:43:20,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:43:20,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:43:20,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:43:20,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:43:20,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:43:20,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:43:20,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:43:20,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:20,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:43:20,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:43:20,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:43:20,958 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:43:20,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:43:20,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:43:20,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:43:20,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:43:20,959 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ceec73f9e554c485344f34d2b1865bfa0707ac614302bf3f054f6fb35398f61 [2021-11-19 13:43:21,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:43:21,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:43:21,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:43:21,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:43:21,372 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:43:21,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-19 13:43:21,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/b0b7cfec3/bed7b3745d22432b96523ebe342209c9/FLAG226e28e7b [2021-11-19 13:43:22,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:43:22,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2021-11-19 13:43:22,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/b0b7cfec3/bed7b3745d22432b96523ebe342209c9/FLAG226e28e7b [2021-11-19 13:43:22,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/data/b0b7cfec3/bed7b3745d22432b96523ebe342209c9 [2021-11-19 13:43:22,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:43:22,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:43:22,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:22,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:43:22,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:43:22,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3213acb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22, skipping insertion in model container [2021-11-19 13:43:22,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:43:22,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:22,740 WARN L230 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-19 13:43:22,760 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:22,781 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:43:22,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:43:22,825 WARN L230 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-19 13:43:22,830 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:22,835 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:43:22,876 WARN L230 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_9f420f80-e9e5-48ff-98d8-2de74667e30e/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2021-11-19 13:43:22,894 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:43:22,911 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:43:22,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22 WrapperNode [2021-11-19 13:43:22,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:43:22,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:43:22,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:43:22,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:43:22,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,976 INFO L137 Inliner]: procedures = 28, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 306 [2021-11-19 13:43:22,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:43:22,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:43:22,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:43:22,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:43:22,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:22,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:23,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:23,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:23,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:23,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:43:23,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:43:23,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:43:23,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:43:23,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (1/1) ... [2021-11-19 13:43:23,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:43:23,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:43:23,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:43:23,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:43:23,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:43:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:43:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:43:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:43:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-19 13:43:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-19 13:43:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-19 13:43:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-19 13:43:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-19 13:43:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-19 13:43:23,104 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-19 13:43:23,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-19 13:43:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 13:43:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 13:43:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:43:23,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:43:23,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:43:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:43:23,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:43:23,108 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 13:43:23,231 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:43:23,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:43:23,825 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:43:24,090 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:43:24,090 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 13:43:24,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:43:24 BoogieIcfgContainer [2021-11-19 13:43:24,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:43:24,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:43:24,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:43:24,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:43:24,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:43:22" (1/3) ... [2021-11-19 13:43:24,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727126f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:43:24, skipping insertion in model container [2021-11-19 13:43:24,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:43:22" (2/3) ... [2021-11-19 13:43:24,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727126f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:43:24, skipping insertion in model container [2021-11-19 13:43:24,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:43:24" (3/3) ... [2021-11-19 13:43:24,104 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2021-11-19 13:43:24,109 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 13:43:24,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:43:24,110 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:43:24,110 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:43:24,154 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,161 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,162 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,163 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,166 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,166 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,167 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,168 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,169 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,170 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,171 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,172 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,173 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,174 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,175 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,176 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,177 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,178 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,179 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,180 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,182 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,183 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,183 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,183 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,184 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,188 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,189 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,192 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,193 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,193 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,193 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,193 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,193 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,194 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,195 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,195 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,195 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,195 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,196 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,197 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,198 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,199 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,212 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,212 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,212 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,212 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,212 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,213 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,214 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,214 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,214 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,216 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,217 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,218 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,219 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,220 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,221 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,222 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:43:24,224 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-19 13:43:24,286 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:43:24,295 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 [2021-11-19 13:43:24,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-19 13:43:24,318 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:43:24,337 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 236 transitions, 504 flow [2021-11-19 13:43:24,340 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 236 transitions, 504 flow [2021-11-19 13:43:24,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 230 places, 236 transitions, 504 flow [2021-11-19 13:43:24,490 INFO L129 PetriNetUnfolder]: 19/232 cut-off events. [2021-11-19 13:43:24,490 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-19 13:43:24,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 232 events. 19/232 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 118 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 193. Up to 2 conditions per place. [2021-11-19 13:43:24,504 INFO L116 LiptonReduction]: Number of co-enabled transitions 2000 [2021-11-19 13:43:54,756 INFO L131 LiptonReduction]: Checked pairs total: 4223 [2021-11-19 13:43:54,756 INFO L133 LiptonReduction]: Total number of compositions: 234 [2021-11-19 13:43:54,765 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 42 transitions, 116 flow [2021-11-19 13:43:54,831 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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) [2021-11-19 13:43:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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) [2021-11-19 13:43:54,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:43:54,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:54,860 INFO L514 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] [2021-11-19 13:43:54,860 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)] === [2021-11-19 13:43:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash -586739022, now seen corresponding path program 1 times [2021-11-19 13:43:54,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:54,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065670601] [2021-11-19 13:43:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:54,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:54,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:54,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:54,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:43:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:55,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:43:55,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:55,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:55,435 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:55,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065670601] [2021-11-19 13:43:55,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065670601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:55,436 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:55,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:43:55,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144835997] [2021-11-19 13:43:55,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:55,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:43:55,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:55,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:43:55,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:43:55,468 INFO L87 Difference]: Start difference. First operand has 854 states, 853 states have (on average 4.173505275498242) internal successors, (3560), 853 states have internal predecessors, (3560), 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 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-19 13:43:56,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:56,310 INFO L93 Difference]: Finished difference Result 1194 states and 5024 transitions. [2021-11-19 13:43:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:43:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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 27 [2021-11-19 13:43:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:56,342 INFO L225 Difference]: With dead ends: 1194 [2021-11-19 13:43:56,342 INFO L226 Difference]: Without dead ends: 1194 [2021-11-19 13:43:56,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:43:56,347 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 85 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:56,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 35 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 13:43:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-11-19 13:43:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1024. [2021-11-19 13:43:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 1023 states have (on average 4.195503421309873) internal successors, (4292), 1023 states have internal predecessors, (4292), 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) [2021-11-19 13:43:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 4292 transitions. [2021-11-19 13:43:56,499 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 4292 transitions. Word has length 27 [2021-11-19 13:43:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:56,500 INFO L470 AbstractCegarLoop]: Abstraction has 1024 states and 4292 transitions. [2021-11-19 13:43:56,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-19 13:43:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 4292 transitions. [2021-11-19 13:43:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:43:56,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:56,511 INFO L514 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] [2021-11-19 13:43:56,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:43:56,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:56,712 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)] === [2021-11-19 13:43:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1921655865, now seen corresponding path program 1 times [2021-11-19 13:43:56,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:56,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644597716] [2021-11-19 13:43:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:56,715 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:56,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:56,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:56,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:43:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:56,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:43:56,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:56,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:57,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:57,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:57,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644597716] [2021-11-19 13:43:57,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644597716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:57,084 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:57,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-19 13:43:57,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741891903] [2021-11-19 13:43:57,085 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:57,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:43:57,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:57,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:43:57,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:43:57,087 INFO L87 Difference]: Start difference. First operand 1024 states and 4292 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-19 13:43:58,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:58,162 INFO L93 Difference]: Finished difference Result 1344 states and 5652 transitions. [2021-11-19 13:43:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:43:58,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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 29 [2021-11-19 13:43:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:58,179 INFO L225 Difference]: With dead ends: 1344 [2021-11-19 13:43:58,179 INFO L226 Difference]: Without dead ends: 1344 [2021-11-19 13:43:58,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:43:58,183 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 89 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:58,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 70 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-19 13:43:58,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2021-11-19 13:43:58,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1184. [2021-11-19 13:43:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1183 states have (on average 4.202874049027895) internal successors, (4972), 1183 states have internal predecessors, (4972), 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) [2021-11-19 13:43:58,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 4972 transitions. [2021-11-19 13:43:58,258 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 4972 transitions. Word has length 29 [2021-11-19 13:43:58,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:58,259 INFO L470 AbstractCegarLoop]: Abstraction has 1184 states and 4972 transitions. [2021-11-19 13:43:58,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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) [2021-11-19 13:43:58,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 4972 transitions. [2021-11-19 13:43:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:43:58,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:58,266 INFO L514 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] [2021-11-19 13:43:58,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:58,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:58,478 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)] === [2021-11-19 13:43:58,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:58,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1486786055, now seen corresponding path program 2 times [2021-11-19 13:43:58,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:58,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60753306] [2021-11-19 13:43:58,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:43:58,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:58,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:58,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:58,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:43:58,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:43:58,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:43:58,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:43:58,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:58,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:43:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:43:58,910 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:58,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60753306] [2021-11-19 13:43:58,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60753306] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:43:58,910 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:58,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:43:58,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186847730] [2021-11-19 13:43:58,911 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:43:58,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:43:58,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:43:58,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:43:58,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:43:58,912 INFO L87 Difference]: Start difference. First operand 1184 states and 4972 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-19 13:43:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:43:59,289 INFO L93 Difference]: Finished difference Result 1447 states and 5879 transitions. [2021-11-19 13:43:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:43:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 29 [2021-11-19 13:43:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:43:59,304 INFO L225 Difference]: With dead ends: 1447 [2021-11-19 13:43:59,304 INFO L226 Difference]: Without dead ends: 1185 [2021-11-19 13:43:59,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:43:59,307 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:43:59,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 24 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:43:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2021-11-19 13:43:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2021-11-19 13:43:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 4.200168918918919) internal successors, (4973), 1184 states have internal predecessors, (4973), 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) [2021-11-19 13:43:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 4973 transitions. [2021-11-19 13:43:59,373 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 4973 transitions. Word has length 29 [2021-11-19 13:43:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:43:59,374 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 4973 transitions. [2021-11-19 13:43:59,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-11-19 13:43:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 4973 transitions. [2021-11-19 13:43:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 13:43:59,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:43:59,381 INFO L514 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] [2021-11-19 13:43:59,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:59,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:43:59,604 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)] === [2021-11-19 13:43:59,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:43:59,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1199258482, now seen corresponding path program 1 times [2021-11-19 13:43:59,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:43:59,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672487860] [2021-11-19 13:43:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:59,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:43:59,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:43:59,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:43:59,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:43:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:59,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:43:59,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:44:00,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:44:00,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:00,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672487860] [2021-11-19 13:44:00,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672487860] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:44:00,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:44:00,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-11-19 13:44:00,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665343179] [2021-11-19 13:44:00,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:00,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:44:00,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:44:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:44:00,569 INFO L87 Difference]: Start difference. First operand 1185 states and 4973 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-19 13:44:01,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:01,292 INFO L93 Difference]: Finished difference Result 2075 states and 8719 transitions. [2021-11-19 13:44:01,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:44:01,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 [2021-11-19 13:44:01,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:01,316 INFO L225 Difference]: With dead ends: 2075 [2021-11-19 13:44:01,316 INFO L226 Difference]: Without dead ends: 2075 [2021-11-19 13:44:01,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:44:01,317 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 73 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:01,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 29 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:44:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2021-11-19 13:44:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1345. [2021-11-19 13:44:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 4.206101190476191) internal successors, (5653), 1344 states have internal predecessors, (5653), 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) [2021-11-19 13:44:01,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 5653 transitions. [2021-11-19 13:44:01,421 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 5653 transitions. Word has length 30 [2021-11-19 13:44:01,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:01,422 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 5653 transitions. [2021-11-19 13:44:01,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-19 13:44:01,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 5653 transitions. [2021-11-19 13:44:01,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 13:44:01,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:01,429 INFO L514 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] [2021-11-19 13:44:01,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:44:01,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:01,640 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)] === [2021-11-19 13:44:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1325471844, now seen corresponding path program 2 times [2021-11-19 13:44:01,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:01,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378308115] [2021-11-19 13:44:01,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:44:01,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:01,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:01,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:01,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:44:01,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:44:01,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:44:01,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:44:01,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:01,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:44:01,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:44:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:44:02,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:44:02,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378308115] [2021-11-19 13:44:02,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378308115] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:44:02,118 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:44:02,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:44:02,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727086224] [2021-11-19 13:44:02,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:44:02,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:44:02,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:44:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:44:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:44:02,119 INFO L87 Difference]: Start difference. First operand 1345 states and 5653 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-11-19 13:44:02,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:44:02,913 INFO L93 Difference]: Finished difference Result 2075 states and 8673 transitions. [2021-11-19 13:44:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 13:44:02,913 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 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 [2021-11-19 13:44:02,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:44:02,937 INFO L225 Difference]: With dead ends: 2075 [2021-11-19 13:44:02,937 INFO L226 Difference]: Without dead ends: 2075 [2021-11-19 13:44:02,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:44:02,939 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 272 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:44:02,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 33 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:44:02,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2021-11-19 13:44:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1185. [2021-11-19 13:44:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1184 states have (on average 4.112331081081081) internal successors, (4869), 1184 states have internal predecessors, (4869), 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) [2021-11-19 13:44:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 4869 transitions. [2021-11-19 13:44:03,029 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 4869 transitions. Word has length 30 [2021-11-19 13:44:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:44:03,029 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 4869 transitions. [2021-11-19 13:44:03,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 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) [2021-11-19 13:44:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 4869 transitions. [2021-11-19 13:44:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 13:44:03,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:44:03,036 INFO L514 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] [2021-11-19 13:44:03,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-19 13:44:03,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:44:03,250 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-19 13:44:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:44:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash -745199502, now seen corresponding path program 1 times [2021-11-19 13:44:03,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:44:03,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017540830] [2021-11-19 13:44:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:44:03,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:44:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:44:03,252 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:44:03,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:44:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:44:03,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:44:03,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:44:04,783 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-11-19 13:44:04,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 84 treesize of output 104 [2021-11-19 13:46:57,385 WARN L227 SmtUtils]: Spent 2.79m on a formula simplification. DAG size of input: 375 DAG size of output: 127 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 13:46:57,387 INFO L354 Elim1Store]: treesize reduction 2057, result has 17.4 percent of original size [2021-11-19 13:46:57,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 39 case distinctions, treesize of input 122 treesize of output 477 [2021-11-19 13:51:33,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-19 13:51:33,524 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-19 13:51:33,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:51:33,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017540830] [2021-11-19 13:51:33,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-19 13:51:33,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2008011793] [2021-11-19 13:51:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:33,527 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:51:33,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:51:33,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:51:33,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 13:51:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:34,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-19 13:51:34,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:34,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-19 13:51:34,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724563417] [2021-11-19 13:51:34,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:34,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:34,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:51:34,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:51:34,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 13:51:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:34,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-19 13:51:34,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:34,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-19 13:51:34,516 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:51:34,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 13:51:34,517 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-19 13:51:34,517 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 13:51:34,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-19 13:51:34,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2021-11-19 13:51:34,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-11-19 13:51:34,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2021-11-19 13:51:34,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2021-11-19 13:51:34,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:34,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:34,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:35,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f420f80-e9e5-48ff-98d8-2de74667e30e/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:35,144 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-11-19 13:51:35,147 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 13:51:35,147 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:51:35,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:51:35 BasicIcfg [2021-11-19 13:51:35,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:51:35,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:51:35,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:51:35,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:51:35,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:43:24" (3/4) ... [2021-11-19 13:51:35,186 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 13:51:35,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:51:35,187 INFO L158 Benchmark]: Toolchain (without parser) took 492732.45ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 46.8MB in the beginning and 30.4MB in the end (delta: 16.4MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,187 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:51:35,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.46ms. Allocated memory is still 69.2MB. Free memory was 46.6MB in the beginning and 46.1MB in the end (delta: 511.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.26ms. Allocated memory is still 69.2MB. Free memory was 45.9MB in the beginning and 43.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,191 INFO L158 Benchmark]: Boogie Preprocessor took 45.21ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,191 INFO L158 Benchmark]: RCFGBuilder took 1070.56ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 41.6MB in the end (delta: -623.4kB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,192 INFO L158 Benchmark]: TraceAbstraction took 491086.60ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 41.3MB in the beginning and 30.4MB in the end (delta: 10.9MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2021-11-19 13:51:35,192 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:51:35,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.46ms. Allocated memory is still 69.2MB. Free memory was 46.6MB in the beginning and 46.1MB in the end (delta: 511.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.26ms. Allocated memory is still 69.2MB. Free memory was 45.9MB in the beginning and 43.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.21ms. Allocated memory is still 69.2MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1070.56ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 41.6MB in the end (delta: -623.4kB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 491086.60ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 41.3MB in the beginning and 30.4MB in the end (delta: 10.9MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 117.4MB. Free memory is still 30.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4s, 230 PlacesBefore, 49 PlacesAfterwards, 236 TransitionsBefore, 42 TransitionsAfterwards, 2000 CoEnabledTransitionPairs, 8 FixpointIterations, 156 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 234 TotalNumberOfCompositions, 4223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2777, positive: 2661, positive conditional: 0, positive unconditional: 2661, negative: 116, negative conditional: 0, negative unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1300, positive: 1276, positive conditional: 0, positive unconditional: 1276, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1300, positive: 1275, positive conditional: 0, positive unconditional: 1275, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 690, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 549, negative conditional: 0, negative unconditional: 549, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2777, positive: 1385, positive conditional: 0, positive unconditional: 1385, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 1300, unknown conditional: 0, unknown unconditional: 1300] , Statistics on independence cache: Total cache size (in pairs): 195, Positive cache size: 183, Positive conditional cache size: 0, Positive unconditional cache size: 183, 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 - UnprovableResult [Line: 154]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L40] 0 int* q1; [L41] 0 int* q2; [L42] 0 int i, j, total, C, N, M, q1_front, q1_back, q2_front, q2_back, n1, n2; [L124] 0 pthread_t t1, t2, t3, t4; [L126] 0 C = __VERIFIER_nondet_int() [L127] 0 M = __VERIFIER_nondet_int() [L128] 0 N = __VERIFIER_nondet_int() [L130] 0 q1_front = __VERIFIER_nondet_int() [L131] 0 q1_back = __VERIFIER_nondet_int() [L132] 0 q2_front = __VERIFIER_nondet_int() [L133] 0 q2_back = __VERIFIER_nondet_int() [L135] 0 n1 = __VERIFIER_nondet_int() [L136] 0 n2 = __VERIFIER_nondet_int() [L137] CALL, EXPR 0 create_fresh_int_array(n1) [L160] CALL 0 assume_abort_if_not(size >= 0) [L37] COND TRUE 0 !cond [L160] RET 0 assume_abort_if_not(size >= 0) [L161] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L161] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L163] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L164] 0 int i = 0; [L164] COND TRUE 0 i < size [L165] 0 arr[i] = __VERIFIER_nondet_int() [L164] 0 i++ [L164] COND FALSE 0 !(i < size) [L167] 0 return arr; [L137] RET, EXPR 0 create_fresh_int_array(n1) [L137] 0 q1 = create_fresh_int_array(n1) [L138] CALL, EXPR 0 create_fresh_int_array(n2) [L160] CALL 0 assume_abort_if_not(size >= 0) [L37] COND TRUE 0 !cond [L160] RET 0 assume_abort_if_not(size >= 0) [L161] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L161] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L163] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L164] 0 int i = 0; [L164] COND FALSE 0 !(i < size) [L167] 0 return arr; [L138] RET, EXPR 0 create_fresh_int_array(n2) [L138] 0 q2 = create_fresh_int_array(n2) [L140] CALL 0 assume_abort_if_not(C > -2147483648) [L37] COND TRUE 0 !cond [L140] RET 0 assume_abort_if_not(C > -2147483648) [L141] CALL 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L37] COND TRUE 0 !cond [L141] RET 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L144] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) [L49] 1 _Bool cond = i < N; [L51] COND TRUE 1 \read(cond) [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] EXPR 1 q1[q1_back] [L53] EXPR 1 q1_back >= 0 && q1_back < n1 && q1[q1_back] == C [L53] CALL 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L37] COND TRUE 1 !cond [L53] RET 1 assume_abort_if_not(q1_back >= 0 && q1_back < n1 && q1[q1_back] == C) [L54] 1 q1_back++ [L145] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L69] 2 _Bool cond = j < M; [L71] COND FALSE 2 !(\read(cond)) [L84] 2 return 0; [L146] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L89] 3 _Bool cond = i < N || q1_front < q1_back; [L91] COND TRUE 3 \read(cond) [L93] CALL 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L37] COND TRUE 3 !cond [L93] RET 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L94] EXPR 3 q1[q1_front] [L94] CALL, EXPR 3 plus(total, q1[q1_front]) [L171] CALL 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L37] COND TRUE 3 !cond [L171] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L172] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND TRUE 3 !cond [L172] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L173] 3 return a + b; [L94] RET, EXPR 3 plus(total, q1[q1_front]) [L94] 3 total = plus(total, q1[q1_front]) [L95] 3 q1_front++ [L147] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L107] 4 _Bool cond = j < M || q2_front < q2_back; [L109] COND FALSE 4 !(\read(cond)) [L120] 4 return 0; [L148] 0 \read(t1) [L57] 1 i++ [L60] 1 cond = i < N [L98] 3 cond = i < N || q1_front < q1_back [L102] 3 return 0; [L51] COND FALSE 1 !(\read(cond)) [L64] 1 return 0; [L148] FCALL, JOIN 1 pthread_join(t1, 0) [L149] 0 \read(t2) [L149] FCALL, JOIN 2 pthread_join(t2, 0) [L150] 0 \read(t3) [L150] FCALL, JOIN 3 pthread_join(t3, 0) [L151] 0 \read(t4) [L151] FCALL, JOIN 4 pthread_join(t4, 0) [L153] CALL 0 assume_abort_if_not(total <= 0) [L37] COND FALSE 0 !(!cond) [L153] RET 0 assume_abort_if_not(total <= 0) [L154] 0 reach_error() - UnprovableResult [Line: 145]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 147]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 144]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 146]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 252 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 490.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 30.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 558 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 558 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 836 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1127 IncrementalHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 51 mSDtfsCounter, 1127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 293 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1345occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 1950 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 452.0s InterpolantComputationTime, 177 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 280 ConstructedInterpolants, 0 QuantifiedInterpolants, 917 SizeOfPredicates, 65 NumberOfNonLiveVariables, 819 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN