./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:47,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:47,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:47,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:47,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:47,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:47,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:47,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:47,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:47,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:47,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:47,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:47,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:47,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:47,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:47,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:47,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:47,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:47,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:47,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:47,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:47,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:47,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:47,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:47,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:47,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:47,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:47,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:47,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:47,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:47,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:47,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:47,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:47,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:47,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:47,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:47,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:47,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:47,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:47,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:47,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:47,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:34:47,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:47,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:47,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:47,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:47,135 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:47,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:47,135 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:47,135 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:34:47,136 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:47,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:47,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:34:47,137 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:34:47,137 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:47,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:34:47,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:34:47,138 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:34:47,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:47,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:34:47,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:34:47,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:34:47,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:47,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:47,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:47,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:47,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:47,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:34:47,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:47,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:47,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:47,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:47,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:47,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:47,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:47,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:47,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:47,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:34:47,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:34:47,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:47,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:47,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:47,146 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-19 13:34:47,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:47,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:47,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:47,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:47,428 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:47,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-19 13:34:47,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/5e09c8f7b/be0bdf88e4994b6fabcc88e7a7689c83/FLAGe6b2d8662 [2021-11-19 13:34:47,933 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:47,933 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-19 13:34:47,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/5e09c8f7b/be0bdf88e4994b6fabcc88e7a7689c83/FLAGe6b2d8662 [2021-11-19 13:34:48,324 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/5e09c8f7b/be0bdf88e4994b6fabcc88e7a7689c83 [2021-11-19 13:34:48,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:48,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:48,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:48,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:48,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:48,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:48" (1/1) ... [2021-11-19 13:34:48,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae82cb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48, skipping insertion in model container [2021-11-19 13:34:48,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:48" (1/1) ... [2021-11-19 13:34:48,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:48,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:48,595 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-19 13:34:48,605 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:48,615 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 13:34:48,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14b2b5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48, skipping insertion in model container [2021-11-19 13:34:48,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:48,616 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:34:48,618 INFO L158 Benchmark]: Toolchain (without parser) took 288.81ms. Allocated memory is still 111.1MB. Free memory was 69.3MB in the beginning and 86.6MB in the end (delta: -17.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:34:48,619 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:34:48,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 111.1MB. Free memory was 69.1MB in the beginning and 86.6MB in the end (delta: -17.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 13:34:48,622 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.25ms. Allocated memory is still 111.1MB. Free memory was 69.1MB in the beginning and 86.6MB in the end (delta: -17.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 159]: 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:34:50,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:34:50,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:34:50,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:34:50,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:34:50,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:34:50,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:34:50,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:34:50,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:34:50,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:34:50,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:34:50,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:34:50,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:34:50,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:34:50,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:34:50,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:34:50,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:34:50,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:34:50,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:34:50,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:34:51,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:34:51,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:34:51,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:34:51,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:34:51,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:34:51,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:34:51,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:34:51,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:34:51,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:34:51,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:34:51,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:34:51,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:34:51,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:34:51,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:34:51,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:34:51,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:34:51,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:34:51,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:34:51,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:34:51,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:34:51,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:34:51,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 13:34:51,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:34:51,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:34:51,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:34:51,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:34:51,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:34:51,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:34:51,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:34:51,086 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:34:51,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:34:51,087 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:34:51,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:34:51,090 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:34:51,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:34:51,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:34:51,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:34:51,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:34:51,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:34:51,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:34:51,092 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:34:51,092 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:34:51,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:34:51,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:34:51,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:34:51,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:34:51,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:34:51,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:34:51,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:34:51,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:51,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:34:51,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:34:51,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:34:51,095 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:34:51,095 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:34:51,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:34:51,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:34:51,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:34:51,096 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2150e0b957073117139b89f4d79d7a8523050efb20e53a1bf0b405c120dd6a7 [2021-11-19 13:34:51,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:34:51,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:34:51,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:34:51,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:34:51,530 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:34:51,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-19 13:34:51,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/281d839c5/46aa172b08344487b1b258f2a407e9ac/FLAG0eaa6ea57 [2021-11-19 13:34:52,117 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:34:52,118 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c [2021-11-19 13:34:52,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/281d839c5/46aa172b08344487b1b258f2a407e9ac/FLAG0eaa6ea57 [2021-11-19 13:34:52,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/data/281d839c5/46aa172b08344487b1b258f2a407e9ac [2021-11-19 13:34:52,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:34:52,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:34:52,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:52,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:34:52,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:34:52,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:52" (1/1) ... [2021-11-19 13:34:52,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77577a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:52, skipping insertion in model container [2021-11-19 13:34:52,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:52" (1/1) ... [2021-11-19 13:34:52,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:34:52,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:52,783 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-19 13:34:52,813 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:52,839 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:34:52,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:34:52,911 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-19 13:34:52,917 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:52,926 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:34:52,965 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_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt2.wvr.c[4174,4187] [2021-11-19 13:34:52,970 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:34:53,005 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:34:53,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53 WrapperNode [2021-11-19 13:34:53,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:34:53,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:34:53,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:34:53,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:34:53,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,080 INFO L137 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 302 [2021-11-19 13:34:53,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:34:53,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:34:53,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:34:53,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:34:53,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:34:53,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:34:53,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:34:53,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:34:53,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (1/1) ... [2021-11-19 13:34:53,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:34:53,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:34:53,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:34:53,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:34:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:34:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:34:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:34:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:34:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-19 13:34:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-19 13:34:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-19 13:34:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-19 13:34:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-19 13:34:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-19 13:34:53,218 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-19 13:34:53,218 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-19 13:34:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 13:34:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 13:34:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:34:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:34:53,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:34:53,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:34:53,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:34:53,221 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 13:34:53,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:34:53,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:34:54,061 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:34:54,331 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:34:54,331 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 13:34:54,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:34:54 BoogieIcfgContainer [2021-11-19 13:34:54,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:34:54,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:34:54,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:34:54,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:34:54,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:34:52" (1/3) ... [2021-11-19 13:34:54,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2d4adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:34:54, skipping insertion in model container [2021-11-19 13:34:54,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:53" (2/3) ... [2021-11-19 13:34:54,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2d4adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:34:54, skipping insertion in model container [2021-11-19 13:34:54,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:34:54" (3/3) ... [2021-11-19 13:34:54,341 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt2.wvr.c [2021-11-19 13:34:54,346 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 13:34:54,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:34:54,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:34:54,347 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 13:34:54,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,394 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,395 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,399 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,400 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,401 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,402 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,403 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,404 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,404 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,404 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,404 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,404 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,405 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,405 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,406 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,407 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,408 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,409 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,410 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,411 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,413 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~short2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,414 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,415 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,416 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,417 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,418 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,418 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,418 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,419 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~short6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,420 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,420 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,420 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,421 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,422 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,422 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,422 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 13:34:54,422 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 13:34:54,424 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-19 13:34:54,468 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:34:54,475 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 13:34:54,475 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-19 13:34:54,507 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-19 13:34:54,520 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 234 transitions, 500 flow [2021-11-19 13:34:54,523 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 234 transitions, 500 flow [2021-11-19 13:34:54,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 228 places, 234 transitions, 500 flow [2021-11-19 13:34:54,611 INFO L129 PetriNetUnfolder]: 19/230 cut-off events. [2021-11-19 13:34:54,612 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-19 13:34:54,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 230 events. 19/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 108 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2021-11-19 13:34:54,622 INFO L116 LiptonReduction]: Number of co-enabled transitions 1824 [2021-11-19 13:35:16,134 WARN L227 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 135 DAG size of output: 134 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-19 13:35:19,905 INFO L131 LiptonReduction]: Checked pairs total: 3454 [2021-11-19 13:35:19,905 INFO L133 LiptonReduction]: Total number of compositions: 231 [2021-11-19 13:35:19,914 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 40 transitions, 112 flow [2021-11-19 13:35:19,966 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 13:35:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 13:35:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:35:19,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:19,990 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 13:35:19,991 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 13:35:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1702452940, now seen corresponding path program 1 times [2021-11-19 13:35:20,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:20,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174143499] [2021-11-19 13:35:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:20,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:20,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:20,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:20,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:35:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:20,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:35:20,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:20,550 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 13:35:20,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:20,691 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 13:35:20,692 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:20,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174143499] [2021-11-19 13:35:20,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174143499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:20,693 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:20,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:35:20,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100165600] [2021-11-19 13:35:20,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:20,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:35:20,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:20,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:35:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:35:20,760 INFO L87 Difference]: Start difference. First operand has 526 states, 525 states have (on average 4.102857142857143) internal successors, (2154), 525 states have internal predecessors, (2154), 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 13:35:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:21,290 INFO L93 Difference]: Finished difference Result 654 states and 2704 transitions. [2021-11-19 13:35:21,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:35:21,294 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 13:35:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:21,336 INFO L225 Difference]: With dead ends: 654 [2021-11-19 13:35:21,336 INFO L226 Difference]: Without dead ends: 654 [2021-11-19 13:35:21,337 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 13:35:21,344 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 82 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:21,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 15 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:35:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2021-11-19 13:35:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2021-11-19 13:35:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 653 states have (on average 4.1408882082695255) internal successors, (2704), 653 states have internal predecessors, (2704), 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 13:35:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 2704 transitions. [2021-11-19 13:35:21,502 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 2704 transitions. Word has length 27 [2021-11-19 13:35:21,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:21,503 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 2704 transitions. [2021-11-19 13:35:21,503 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 13:35:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 2704 transitions. [2021-11-19 13:35:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-19 13:35:21,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:21,510 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] [2021-11-19 13:35:21,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 13:35:21,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:21,725 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 13:35:21,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:21,728 INFO L85 PathProgramCache]: Analyzing trace with hash -124627514, now seen corresponding path program 1 times [2021-11-19 13:35:21,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:21,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287713570] [2021-11-19 13:35:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:21,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:21,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:21,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:21,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:35:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:21,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:35:21,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:22,099 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 13:35:22,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:22,236 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 13:35:22,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:22,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287713570] [2021-11-19 13:35:22,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287713570] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:22,236 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:22,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-19 13:35:22,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379991148] [2021-11-19 13:35:22,237 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:22,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:35:22,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:35:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:22,239 INFO L87 Difference]: Start difference. First operand 654 states and 2704 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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 13:35:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:22,677 INFO L93 Difference]: Finished difference Result 853 states and 3387 transitions. [2021-11-19 13:35:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:35:22,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-19 13:35:22,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:22,686 INFO L225 Difference]: With dead ends: 853 [2021-11-19 13:35:22,686 INFO L226 Difference]: Without dead ends: 655 [2021-11-19 13:35:22,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 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 13:35:22,689 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 20 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:22,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:35:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2021-11-19 13:35:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2021-11-19 13:35:22,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 4.136085626911315) internal successors, (2705), 654 states have internal predecessors, (2705), 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 13:35:22,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 2705 transitions. [2021-11-19 13:35:22,734 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 2705 transitions. Word has length 28 [2021-11-19 13:35:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:22,734 INFO L470 AbstractCegarLoop]: Abstraction has 655 states and 2705 transitions. [2021-11-19 13:35:22,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 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 13:35:22,735 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 2705 transitions. [2021-11-19 13:35:22,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:35:22,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:22,738 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 13:35:22,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:22,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:22,951 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 13:35:22,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:22,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2083485159, now seen corresponding path program 1 times [2021-11-19 13:35:22,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:22,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352824687] [2021-11-19 13:35:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:22,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:22,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:22,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:35:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:23,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 13:35:23,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:23,637 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 13:35:23,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:23,908 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 13:35:23,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:23,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352824687] [2021-11-19 13:35:23,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352824687] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:35:23,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:35:23,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-11-19 13:35:23,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175005425] [2021-11-19 13:35:23,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:23,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:23,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:23,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:23,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:35:23,911 INFO L87 Difference]: Start difference. First operand 655 states and 2705 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 13:35:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:24,616 INFO L93 Difference]: Finished difference Result 1033 states and 4259 transitions. [2021-11-19 13:35:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:35:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 13:35:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:24,629 INFO L225 Difference]: With dead ends: 1033 [2021-11-19 13:35:24,629 INFO L226 Difference]: Without dead ends: 1033 [2021-11-19 13:35:24,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:35:24,631 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 70 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:24,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 29 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:35:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-11-19 13:35:24,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 839. [2021-11-19 13:35:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 838 states have (on average 4.144391408114559) internal successors, (3473), 838 states have internal predecessors, (3473), 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 13:35:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 3473 transitions. [2021-11-19 13:35:24,701 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 3473 transitions. Word has length 29 [2021-11-19 13:35:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:24,701 INFO L470 AbstractCegarLoop]: Abstraction has 839 states and 3473 transitions. [2021-11-19 13:35:24,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 13:35:24,702 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 3473 transitions. [2021-11-19 13:35:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 13:35:24,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:24,707 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 13:35:24,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:24,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:24,926 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 13:35:24,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash 939940533, now seen corresponding path program 2 times [2021-11-19 13:35:24,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:24,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844086608] [2021-11-19 13:35:24,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:35:24,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:24,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:24,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:35:25,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 13:35:25,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:35:25,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:35:25,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:25,270 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 13:35:25,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:25,460 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 13:35:25,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:25,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844086608] [2021-11-19 13:35:25,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844086608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:25,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:25,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-19 13:35:25,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569817182] [2021-11-19 13:35:25,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:25,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:35:25,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:25,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:35:25,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:35:25,463 INFO L87 Difference]: Start difference. First operand 839 states and 3473 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 13:35:26,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:26,238 INFO L93 Difference]: Finished difference Result 1379 states and 5617 transitions. [2021-11-19 13:35:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:35:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 13:35:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:26,254 INFO L225 Difference]: With dead ends: 1379 [2021-11-19 13:35:26,254 INFO L226 Difference]: Without dead ends: 1379 [2021-11-19 13:35:26,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:35:26,258 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 144 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:26,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 31 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:35:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2021-11-19 13:35:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 719. [2021-11-19 13:35:26,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 718 states have (on average 4.018105849582173) internal successors, (2885), 718 states have internal predecessors, (2885), 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 13:35:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 2885 transitions. [2021-11-19 13:35:26,312 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 2885 transitions. Word has length 29 [2021-11-19 13:35:26,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:26,313 INFO L470 AbstractCegarLoop]: Abstraction has 719 states and 2885 transitions. [2021-11-19 13:35:26,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 13:35:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 2885 transitions. [2021-11-19 13:35:26,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-19 13:35:26,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:26,318 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] [2021-11-19 13:35:26,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:26,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:26,531 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 13:35:26,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:26,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1469718632, now seen corresponding path program 1 times [2021-11-19 13:35:26,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:26,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238862313] [2021-11-19 13:35:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:26,536 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:26,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:26,537 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:26,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:35:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:26,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-19 13:35:26,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:28,114 INFO L354 Elim1Store]: treesize reduction 1262, result has 5.7 percent of original size [2021-11-19 13:35:28,115 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 13:39:46,800 WARN L227 SmtUtils]: Spent 4.23m 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 13:39:46,803 INFO L354 Elim1Store]: treesize reduction 2057, result has 17.4 percent of original size [2021-11-19 13:39:46,803 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 13:43:02,542 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 13:43:02,544 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:43:02,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238862313] [2021-11-19 13:43:02,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 13:43:02,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1110537344] [2021-11-19 13:43:02,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:02,545 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:43:02,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:43:02,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-19 13:43:02,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:43:02,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 13:43:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:03,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-19 13:43:03,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:03,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 13:43:03,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695711463] [2021-11-19 13:43:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:43:03,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:43:03,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:43:03,215 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:43:03,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 13:43:03,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:43:03,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-19 13:43:03,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:43:03,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/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 13:43:03,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:43:03,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 13:43:03,436 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-19 13:43:03,436 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 13:43:03,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-19 13:43:03,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2021-11-19 13:43:03,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2021-11-19 13:43:03,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2021-11-19 13:43:03,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2021-11-19 13:43:03,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-11-19 13:43:03,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:43:03,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-19 13:43:04,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c2a5ef8-9bc7-4cc0-ab11-4f9e68b3be9b/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:43:04,059 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2021-11-19 13:43:04,063 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 13:43:04,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:43:04,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:43:04 BasicIcfg [2021-11-19 13:43:04,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:43:04,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:43:04,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:43:04,106 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:43:04,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:34:54" (3/4) ... [2021-11-19 13:43:04,109 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 13:43:04,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:43:04,110 INFO L158 Benchmark]: Toolchain (without parser) took 491646.68ms. Allocated memory was 56.6MB in the beginning and 113.2MB in the end (delta: 56.6MB). Free memory was 34.3MB in the beginning and 50.2MB in the end (delta: -15.8MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,111 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:43:04,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.92ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 34.1MB in the beginning and 55.7MB in the end (delta: -21.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.95ms. Allocated memory is still 77.6MB. Free memory was 55.7MB in the beginning and 53.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,112 INFO L158 Benchmark]: Boogie Preprocessor took 63.87ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 50.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,114 INFO L158 Benchmark]: RCFGBuilder took 1188.05ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 51.2MB in the end (delta: -546.0kB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,115 INFO L158 Benchmark]: TraceAbstraction took 489769.90ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 50.5MB in the beginning and 50.2MB in the end (delta: 354.7kB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-11-19 13:43:04,115 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 113.2MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:43:04,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 37.6MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.92ms. Allocated memory was 56.6MB in the beginning and 77.6MB in the end (delta: 21.0MB). Free memory was 34.1MB in the beginning and 55.7MB in the end (delta: -21.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.95ms. Allocated memory is still 77.6MB. Free memory was 55.7MB in the beginning and 53.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.87ms. Allocated memory is still 77.6MB. Free memory was 53.0MB in the beginning and 50.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.05ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 51.2MB in the end (delta: -546.0kB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * TraceAbstraction took 489769.90ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 50.5MB in the beginning and 50.2MB in the end (delta: 354.7kB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 113.2MB. Free memory is still 50.2MB. 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: 25.4s, 228 PlacesBefore, 47 PlacesAfterwards, 234 TransitionsBefore, 40 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 9 FixpointIterations, 159 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 8 ConcurrentYvCompositions, 13 ChoiceCompositions, 231 TotalNumberOfCompositions, 3454 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2752, positive: 2660, positive conditional: 0, positive unconditional: 2660, negative: 92, negative conditional: 0, negative unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1204, positive: 1185, positive conditional: 0, positive unconditional: 1185, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1204, positive: 1184, positive conditional: 0, positive unconditional: 1184, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 568, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 502, negative conditional: 0, negative unconditional: 502, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2752, positive: 1475, positive conditional: 0, positive unconditional: 1475, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 1204, unknown conditional: 0, unknown unconditional: 1204] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - 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: 150]: 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; [L120] 0 pthread_t t1, t2, t3, t4; [L122] 0 C = __VERIFIER_nondet_int() [L123] 0 M = __VERIFIER_nondet_int() [L124] 0 N = __VERIFIER_nondet_int() [L126] 0 q1_front = __VERIFIER_nondet_int() [L127] 0 q1_back = __VERIFIER_nondet_int() [L128] 0 q2_front = __VERIFIER_nondet_int() [L129] 0 q2_back = __VERIFIER_nondet_int() [L131] 0 n1 = __VERIFIER_nondet_int() [L132] 0 n2 = __VERIFIER_nondet_int() [L133] CALL, EXPR 0 create_fresh_int_array(n1) [L156] CALL 0 assume_abort_if_not(size >= 0) [L37] COND FALSE 0 !(!cond) [L156] RET 0 assume_abort_if_not(size >= 0) [L157] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND FALSE 0 !(!cond) [L157] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND TRUE 0 i < size [L161] 0 arr[i] = __VERIFIER_nondet_int() [L160] 0 i++ [L163] 0 return arr; [L133] RET, EXPR 0 create_fresh_int_array(n1) [L133] 0 q1 = create_fresh_int_array(n1) [L134] CALL, EXPR 0 create_fresh_int_array(n2) [L156] CALL 0 assume_abort_if_not(size >= 0) [L37] COND FALSE 0 !(!cond) [L156] RET 0 assume_abort_if_not(size >= 0) [L157] CALL 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L37] COND TRUE 0 !cond [L157] RET 0 assume_abort_if_not(size <= (((size_t) 4294967295) / sizeof(int))) [L159] 0 int* arr = (int*)malloc(sizeof(int) * (size_t)size); [L160] 0 int i = 0; [L160] COND FALSE 0 !(i < size) [L163] 0 return arr; [L134] RET, EXPR 0 create_fresh_int_array(n2) [L134] 0 q2 = create_fresh_int_array(n2) [L136] CALL 0 assume_abort_if_not(C > -2147483648) [L37] COND FALSE 0 !(!cond) [L136] RET 0 assume_abort_if_not(C > -2147483648) [L137] CALL 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L37] COND FALSE 0 !(!cond) [L137] RET 0 assume_abort_if_not(N > M && M >= 0 && C > 0 && q1_front == q1_back && q2_front == q2_back) [L140] 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++ [L55] 1 i++ [L58] 1 cond = i < N [L51] COND FALSE 1 !(\read(cond)) [L62] 1 return 0; [L141] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) [L67] 2 _Bool cond = j < M; [L69] COND FALSE 2 !(\read(cond)) [L80] 2 return 0; [L142] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) [L85] 3 _Bool cond = i < N || q1_front < q1_back; [L87] COND TRUE 3 \read(cond) [L89] CALL 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L37] COND TRUE 3 !cond [L89] RET 3 assume_abort_if_not(q1_front >= 0 && q1_front < n1 && q1_front < q1_back) [L90] EXPR 3 q1[q1_front] [L90] CALL, EXPR 3 plus(total, q1[q1_front]) [L167] CALL 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L37] COND TRUE 3 !cond [L167] RET 3 assume_abort_if_not(b >= 0 || a >= -2147483648 - b) [L168] CALL 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L37] COND TRUE 3 !cond [L168] RET 3 assume_abort_if_not(b <= 0 || a <= 2147483647 - b) [L169] 3 return a + b; [L90] RET, EXPR 3 plus(total, q1[q1_front]) [L90] 3 total = plus(total, q1[q1_front]) [L91] 3 q1_front++ [L143] FCALL, FORK 0 pthread_create(&t4, 0, thread4, 0) [L103] 4 _Bool cond = j < M || q2_front < q2_back; [L144] 0 \read(t1) [L144] FCALL, JOIN 1 pthread_join(t1, 0) [L145] 0 \read(t2) [L145] FCALL, JOIN 2 pthread_join(t2, 0) [L146] 0 \read(t3) [L116] 4 return 0; [L94] 3 cond = i < N || q1_front < q1_back [L98] 3 return 0; [L146] FCALL, JOIN 3 pthread_join(t3, 0) [L147] 0 \read(t4) [L147] FCALL, JOIN 4 pthread_join(t4, 0) [L149] CALL 0 assume_abort_if_not(total <= 0) [L37] COND TRUE 0 !cond [L149] RET 0 assume_abort_if_not(total <= 0) [L150] 0 reach_error() - UnprovableResult [Line: 140]: 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: 142]: 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: 141]: 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: 143]: 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, 248 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 489.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 25.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 316 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 316 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 421 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 611 IncrementalHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 33 mSDtfsCounter, 611 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=839occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 854 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 457.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 60 NumberOfNonLiveVariables, 693 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 8/10 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