./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.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_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/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_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/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_02ede625-202e-482c-ab50-5dd4edd0de4a/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 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:33:04,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:33:04,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:33:04,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:33:04,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:33:04,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:33:04,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:33:04,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:33:04,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:33:04,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:33:04,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:33:04,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:33:04,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:33:04,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:33:04,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:33:04,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:33:04,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:33:04,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:33:04,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:33:04,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:33:04,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:33:04,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:33:04,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:33:04,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:33:04,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:33:04,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:33:04,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:33:04,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:33:04,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:33:04,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:33:04,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:33:04,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:33:04,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:33:04,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:33:04,161 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:33:04,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:33:04,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:33:04,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:33:04,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:33:04,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:33:04,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:33:04,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:33:04,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:33:04,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:33:04,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:33:04,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:33:04,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:33:04,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:33:04,223 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:33:04,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:33:04,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:33:04,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:33:04,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:33:04,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:33:04,226 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:33:04,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:33:04,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:33:04,227 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:33:04,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:33:04,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:33:04,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:33:04,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:33:04,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:33:04,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:33:04,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:33:04,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:33:04,229 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:33:04,230 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:33:04,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:33:04,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:33:04,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:33:04,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:33:04,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:33:04,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:04,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:33:04,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:33:04,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:33:04,234 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:33:04,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:33:04,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:33:04,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:33:04,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:33:04,235 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_02ede625-202e-482c-ab50-5dd4edd0de4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-11-19 14:33:04,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:33:04,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:33:04,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:33:04,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:33:04,528 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:33:04,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-19 14:33:04,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/0b2ca4d9a/b93d9f03654f494fb3ed80b05eec9961/FLAGa9f04ac4f [2021-11-19 14:33:05,229 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:33:05,238 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-19 14:33:05,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/0b2ca4d9a/b93d9f03654f494fb3ed80b05eec9961/FLAGa9f04ac4f [2021-11-19 14:33:05,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/0b2ca4d9a/b93d9f03654f494fb3ed80b05eec9961 [2021-11-19 14:33:05,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:33:05,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:33:05,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:05,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:33:05,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:33:05,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:05" (1/1) ... [2021-11-19 14:33:05,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4330ddcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:05, skipping insertion in model container [2021-11-19 14:33:05,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:05" (1/1) ... [2021-11-19 14:33:05,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:33:05,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:33:06,006 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_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-19 14:33:06,016 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:06,030 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 14:33:06,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4c39fc9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:06, skipping insertion in model container [2021-11-19 14:33:06,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:06,032 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:33:06,034 INFO L158 Benchmark]: Toolchain (without parser) took 577.23ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.9MB in the beginning and 66.7MB in the end (delta: -17.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:33:06,034 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:33:06,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.13ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.7MB in the beginning and 66.7MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:33:06,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 53.5MB in the beginning and 53.5MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.13ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.7MB in the beginning and 66.7MB in the end (delta: -18.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1050]: 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_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/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_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/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_02ede625-202e-482c-ab50-5dd4edd0de4a/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 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:33:08,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:33:08,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:33:08,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:33:08,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:33:08,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:33:08,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:33:08,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:33:08,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:33:08,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:33:08,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:33:08,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:33:08,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:33:08,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:33:08,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:33:08,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:33:08,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:33:08,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:33:08,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:33:08,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:33:08,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:33:08,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:33:08,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:33:08,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:33:08,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:33:08,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:33:08,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:33:08,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:33:08,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:33:08,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:33:08,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:33:08,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:33:08,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:33:08,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:33:08,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:33:08,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:33:08,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:33:08,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:33:08,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:33:08,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:33:08,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:33:08,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:33:08,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:33:08,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:33:08,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:33:08,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:33:08,306 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:33:08,306 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:33:08,306 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:33:08,306 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:33:08,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:33:08,307 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:33:08,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:33:08,311 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:33:08,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:33:08,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:33:08,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:33:08,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:33:08,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:33:08,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:33:08,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:33:08,314 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:33:08,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:33:08,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:33:08,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:33:08,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:33:08,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:33:08,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:33:08,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:33:08,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:08,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:33:08,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:33:08,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:33:08,318 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:33:08,319 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:33:08,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:33:08,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:33:08,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:33:08,321 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_02ede625-202e-482c-ab50-5dd4edd0de4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c6f82e874e2f980b653c53fa0437dd3390b1771d726d8f345336fe56afb2bb6 [2021-11-19 14:33:08,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:33:08,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:33:08,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:33:08,763 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:33:08,763 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:33:08,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-19 14:33:08,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/8f0c0453d/17e26bf862944c9e8afea99f9a82da32/FLAGb0832c389 [2021-11-19 14:33:09,589 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:33:09,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c [2021-11-19 14:33:09,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/8f0c0453d/17e26bf862944c9e8afea99f9a82da32/FLAGb0832c389 [2021-11-19 14:33:09,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/data/8f0c0453d/17e26bf862944c9e8afea99f9a82da32 [2021-11-19 14:33:09,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:33:09,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:33:09,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:09,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:33:09,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:33:09,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:09" (1/1) ... [2021-11-19 14:33:09,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b228c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:09, skipping insertion in model container [2021-11-19 14:33:09,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:33:09" (1/1) ... [2021-11-19 14:33:09,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:33:09,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:33:10,317 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_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-19 14:33:10,327 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:10,347 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:33:10,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:33:10,454 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_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-19 14:33:10,457 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:10,487 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:33:10,588 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_02ede625-202e-482c-ab50-5dd4edd0de4a/sv-benchmarks/c/openssl/s3_srvr.blast.07.i.cil-2.c[74369,74382] [2021-11-19 14:33:10,591 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:33:10,611 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:33:10,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10 WrapperNode [2021-11-19 14:33:10,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:33:10,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:10,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:33:10,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:33:10,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,693 INFO L137 Inliner]: procedures = 36, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 761 [2021-11-19 14:33:10,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:33:10,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:33:10,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:33:10,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:33:10,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:33:10,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:33:10,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:33:10,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:33:10,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (1/1) ... [2021-11-19 14:33:10,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:33:10,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:33:10,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:33:10,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:33:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:33:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:33:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:33:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:33:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:33:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:33:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:33:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:33:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:33:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:33:11,034 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:33:11,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:33:11,054 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:33:19,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-19 14:33:19,865 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-19 14:33:19,865 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:33:19,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:33:19,875 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:33:19,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:19 BoogieIcfgContainer [2021-11-19 14:33:19,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:33:19,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:33:19,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:33:19,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:33:19,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:33:09" (1/3) ... [2021-11-19 14:33:19,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51981790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:33:19, skipping insertion in model container [2021-11-19 14:33:19,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:33:10" (2/3) ... [2021-11-19 14:33:19,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51981790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:33:19, skipping insertion in model container [2021-11-19 14:33:19,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:19" (3/3) ... [2021-11-19 14:33:19,886 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-2.c [2021-11-19 14:33:19,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:33:19,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:33:19,943 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:33:19,950 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 14:33:19,950 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:33:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 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 14:33:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 14:33:19,979 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:19,979 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:19,980 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:19,986 INFO L85 PathProgramCache]: Analyzing trace with hash -442385418, now seen corresponding path program 1 times [2021-11-19 14:33:20,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:20,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421648833] [2021-11-19 14:33:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:20,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:20,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:20,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:33:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:20,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:20,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:20,530 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 14:33:20,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:20,765 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 14:33:20,766 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:20,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421648833] [2021-11-19 14:33:20,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421648833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:20,769 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:20,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:33:20,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968174940] [2021-11-19 14:33:20,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:20,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:33:20,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:33:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:20,826 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 14:33:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:21,079 INFO L93 Difference]: Finished difference Result 566 states and 965 transitions. [2021-11-19 14:33:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:33:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 37 [2021-11-19 14:33:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:21,105 INFO L225 Difference]: With dead ends: 566 [2021-11-19 14:33:21,106 INFO L226 Difference]: Without dead ends: 387 [2021-11-19 14:33:21,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:21,117 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 402 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:21,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 670 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:33:21,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-19 14:33:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-11-19 14:33:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5286458333333333) internal successors, (587), 384 states have internal predecessors, (587), 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 14:33:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 587 transitions. [2021-11-19 14:33:21,225 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 587 transitions. Word has length 37 [2021-11-19 14:33:21,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:21,226 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 587 transitions. [2021-11-19 14:33:21,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 14:33:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 587 transitions. [2021-11-19 14:33:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 14:33:21,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:21,230 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:21,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:21,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash 746604405, now seen corresponding path program 1 times [2021-11-19 14:33:21,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:21,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600431533] [2021-11-19 14:33:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:21,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:21,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:21,456 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:21,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:33:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:21,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:21,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:33:21,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:33:22,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:22,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600431533] [2021-11-19 14:33:22,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600431533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:22,199 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:22,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:33:22,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623509391] [2021-11-19 14:33:22,201 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:22,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:33:22,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:22,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:33:22,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:22,205 INFO L87 Difference]: Start difference. First operand 385 states and 587 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 14:33:22,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:22,843 INFO L93 Difference]: Finished difference Result 879 states and 1353 transitions. [2021-11-19 14:33:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:33:22,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 60 [2021-11-19 14:33:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:22,849 INFO L225 Difference]: With dead ends: 879 [2021-11-19 14:33:22,849 INFO L226 Difference]: Without dead ends: 628 [2021-11-19 14:33:22,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:22,852 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 305 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:22,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 721 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:33:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-11-19 14:33:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 626. [2021-11-19 14:33:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 625 states have (on average 1.52) internal successors, (950), 625 states have internal predecessors, (950), 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 14:33:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 950 transitions. [2021-11-19 14:33:22,880 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 950 transitions. Word has length 60 [2021-11-19 14:33:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:22,881 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 950 transitions. [2021-11-19 14:33:22,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 14:33:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 950 transitions. [2021-11-19 14:33:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-19 14:33:22,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:22,888 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:22,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:23,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:23,102 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1749353389, now seen corresponding path program 1 times [2021-11-19 14:33:23,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:23,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183815267] [2021-11-19 14:33:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:23,105 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:23,107 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:23,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:33:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:23,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:23,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:33:23,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:24,222 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 14:33:24,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:24,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183815267] [2021-11-19 14:33:24,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183815267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:24,222 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:24,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:33:24,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471078288] [2021-11-19 14:33:24,223 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:24,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:33:24,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:24,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:33:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:33:24,225 INFO L87 Difference]: Start difference. First operand 626 states and 950 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 14:33:24,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:24,739 INFO L93 Difference]: Finished difference Result 1238 states and 1888 transitions. [2021-11-19 14:33:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:33:24,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 119 [2021-11-19 14:33:24,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:24,749 INFO L225 Difference]: With dead ends: 1238 [2021-11-19 14:33:24,749 INFO L226 Difference]: Without dead ends: 746 [2021-11-19 14:33:24,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:33:24,756 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 137 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:24,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 569 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:33:24,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-11-19 14:33:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2021-11-19 14:33:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.516778523489933) internal successors, (1130), 745 states have internal predecessors, (1130), 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 14:33:24,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1130 transitions. [2021-11-19 14:33:24,794 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1130 transitions. Word has length 119 [2021-11-19 14:33:24,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:24,796 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 1130 transitions. [2021-11-19 14:33:24,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 14:33:24,796 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1130 transitions. [2021-11-19 14:33:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-19 14:33:24,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:24,805 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:33:24,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:25,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:25,020 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash 433077792, now seen corresponding path program 1 times [2021-11-19 14:33:25,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:25,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835622819] [2021-11-19 14:33:25,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:25,023 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:25,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:25,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:25,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:33:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:25,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:33:25,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:33:25,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:33:26,117 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:26,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835622819] [2021-11-19 14:33:26,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835622819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:26,118 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:26,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:33:26,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381162891] [2021-11-19 14:33:26,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:26,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:33:26,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:26,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:33:26,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:26,120 INFO L87 Difference]: Start difference. First operand 746 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 14:33:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:26,996 INFO L93 Difference]: Finished difference Result 1605 states and 2443 transitions. [2021-11-19 14:33:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:33:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 143 [2021-11-19 14:33:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:27,004 INFO L225 Difference]: With dead ends: 1605 [2021-11-19 14:33:27,004 INFO L226 Difference]: Without dead ends: 993 [2021-11-19 14:33:27,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:33:27,006 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 296 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:27,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 731 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:33:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-19 14:33:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-11-19 14:33:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5141129032258065) internal successors, (1502), 992 states have internal predecessors, (1502), 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 14:33:27,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1502 transitions. [2021-11-19 14:33:27,046 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1502 transitions. Word has length 143 [2021-11-19 14:33:27,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:27,047 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1502 transitions. [2021-11-19 14:33:27,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 14:33:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1502 transitions. [2021-11-19 14:33:27,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:33:27,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:27,052 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:27,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:27,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:27,265 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:27,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:27,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1035961974, now seen corresponding path program 1 times [2021-11-19 14:33:27,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:27,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899294483] [2021-11-19 14:33:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:27,267 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:27,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:27,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:27,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:33:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:27,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-19 14:33:27,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:27,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:33:27,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 14:33:28,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:28,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-19 14:33:28,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:28,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-11-19 14:33:28,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 319 [2021-11-19 14:33:28,536 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-19 14:33:28,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 1289 treesize of output 1241 [2021-11-19 14:33:28,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:28,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-19 14:33:28,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:28,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 336 [2021-11-19 14:33:28,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 319 [2021-11-19 14:33:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 49 [2021-11-19 14:33:28,953 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-19 14:33:28,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-11-19 14:33:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:28,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-19 14:33:29,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-19 14:33:29,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-19 14:33:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 14:33:29,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:33:29,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:29,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-19 14:33:29,951 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:29,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-19 14:33:30,085 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,087 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-11-19 14:33:30,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-19 14:33:30,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-11-19 14:33:30,125 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-11-19 14:33:30,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-11-19 14:33:30,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:30,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-11-19 14:33:30,695 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-11-19 14:33:30,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:30,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899294483] [2021-11-19 14:33:30,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899294483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:33:30,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:33:30,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:33:30,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515527403] [2021-11-19 14:33:30,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:33:30,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:33:30,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:33:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:33:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:33:30,700 INFO L87 Difference]: Start difference. First operand 993 states and 1502 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 14:33:32,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:34,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:36,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:41,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:47,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:50,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:33:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:33:53,103 INFO L93 Difference]: Finished difference Result 1983 states and 3000 transitions. [2021-11-19 14:33:53,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:33:53,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 166 [2021-11-19 14:33:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:33:53,112 INFO L225 Difference]: With dead ends: 1983 [2021-11-19 14:33:53,112 INFO L226 Difference]: Without dead ends: 993 [2021-11-19 14:33:53,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:33:53,114 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 7 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:33:53,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1136 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 3 Unknown, 58 Unchecked, 22.3s Time] [2021-11-19 14:33:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-19 14:33:53,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 993. [2021-11-19 14:33:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 992 states have (on average 1.5131048387096775) internal successors, (1501), 992 states have internal predecessors, (1501), 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 14:33:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1501 transitions. [2021-11-19 14:33:53,167 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1501 transitions. Word has length 166 [2021-11-19 14:33:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:33:53,168 INFO L470 AbstractCegarLoop]: Abstraction has 993 states and 1501 transitions. [2021-11-19 14:33:53,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 14:33:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1501 transitions. [2021-11-19 14:33:53,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-19 14:33:53,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:33:53,173 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:33:53,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:33:53,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:33:53,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:33:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:33:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1534397000, now seen corresponding path program 1 times [2021-11-19 14:33:53,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:33:53,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953112495] [2021-11-19 14:33:53,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:53,394 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:33:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:33:53,396 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:33:53,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:33:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:33:55,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-19 14:33:55,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:33:55,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5153 treesize of output 5117 [2021-11-19 14:33:55,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:33:55,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7159 [2021-11-19 14:33:55,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7583 treesize of output 7215 [2021-11-19 14:33:55,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 14:33:56,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 28 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5454 treesize of output 5059 [2021-11-19 14:33:56,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5623 treesize of output 5409 [2021-11-19 14:33:56,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:33:56,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953112495] [2021-11-19 14:33:56,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Some non-self update cases but no top-level DER relation [2021-11-19 14:33:56,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [605691477] [2021-11-19 14:33:56,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:33:56,098 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:33:56,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:33:56,102 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:33:56,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 14:37:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:24,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-19 14:37:24,908 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@1cc0e20d [2021-11-19 14:37:24,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125314850] [2021-11-19 14:37:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:37:24,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:37:24,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:37:24,933 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:37:24,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 14:37:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:37:25,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-19 14:37:25,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@1cc0e20d [2021-11-19 14:37:25,552 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:37:25,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 14:37:25,552 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-19 14:37:25,552 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 14:37:25,560 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:37:25,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:25,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-19 14:37:25,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:37:26,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:37:26,166 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 14:37:26,168 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:37:26,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:37:26 BoogieIcfgContainer [2021-11-19 14:37:26,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:37:26,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:37:26,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:37:26,225 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:37:26,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:33:19" (3/4) ... [2021-11-19 14:37:26,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:37:26,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:37:26,229 INFO L158 Benchmark]: Toolchain (without parser) took 256473.09ms. Allocated memory was 62.9MB in the beginning and 146.8MB in the end (delta: 83.9MB). Free memory was 40.5MB in the beginning and 44.9MB in the end (delta: -4.3MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,230 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:37:26,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.22ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.4MB in the beginning and 58.8MB in the end (delta: -18.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.86ms. Allocated memory is still 90.2MB. Free memory was 58.8MB in the beginning and 54.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,231 INFO L158 Benchmark]: Boogie Preprocessor took 83.80ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 46.8MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,231 INFO L158 Benchmark]: RCFGBuilder took 9098.26ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 46.8MB in the beginning and 76.6MB in the end (delta: -29.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,231 INFO L158 Benchmark]: TraceAbstraction took 246345.70ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 76.0MB in the beginning and 44.9MB in the end (delta: 31.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2021-11-19 14:37:26,232 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 146.8MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:37:26,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 62.9MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.22ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 40.4MB in the beginning and 58.8MB in the end (delta: -18.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.86ms. Allocated memory is still 90.2MB. Free memory was 58.8MB in the beginning and 54.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.80ms. Allocated memory is still 90.2MB. Free memory was 54.3MB in the beginning and 46.8MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 9098.26ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 46.8MB in the beginning and 76.6MB in the end (delta: -29.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 246345.70ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 76.0MB in the beginning and 44.9MB in the end (delta: 31.1MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 146.8MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 1757]: 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: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1087] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1088] s->options = __VERIFIER_nondet_ulong() [L1089] s->verify_mode = __VERIFIER_nondet_int() [L1090] EXPR s->session [L1090] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1091] EXPR s->s3 [L1091] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1093] EXPR s->s3 [L1093] EXPR (s->s3)->tmp.new_cipher [L1093] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1095] COND FALSE !(__VERIFIER_nondet_int()) [L1101] s->cert = malloc(sizeof(struct cert_st)) [L1102] EXPR s->cert [L1102] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1105] CALL ssl3_accept(s) [L1111] BUF_MEM *buf ; [L1112] unsigned long l ; [L1113] unsigned long Time ; [L1114] unsigned long tmp ; [L1115] void (*cb)() ; [L1116] long num1 ; [L1117] int ret ; [L1118] int new_state ; [L1119] int state ; [L1120] int skip ; [L1121] int got_new_session ; [L1122] int tmp___1 = __VERIFIER_nondet_int() ; [L1123] int tmp___2 = __VERIFIER_nondet_int() ; [L1124] int tmp___3 = __VERIFIER_nondet_int() ; [L1125] int tmp___4 = __VERIFIER_nondet_int() ; [L1126] int tmp___5 = __VERIFIER_nondet_int() ; [L1127] int tmp___6 = __VERIFIER_nondet_int() ; [L1128] int tmp___7 ; [L1129] long tmp___8 = __VERIFIER_nondet_long() ; [L1130] int tmp___9 = __VERIFIER_nondet_int() ; [L1131] int tmp___10 = __VERIFIER_nondet_int() ; [L1132] int blastFlag ; [L1136] s->state = 8464 [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1601] EXPR s->session [L1601] EXPR s->s3 [L1601] EXPR (s->s3)->tmp.new_cipher [L1601] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1602] COND FALSE !(! tmp___9) [L1608] ret = __VERIFIER_nondet_int() [L1609] COND TRUE blastFlag == 2 [L1610] blastFlag = 3 [L1622] COND FALSE !(ret <= 0) [L1627] s->state = 8672 [L1628] s->init_num = 0 [L1629] COND FALSE !(! tmp___10) [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1638] ret = __VERIFIER_nondet_int() [L1639] COND TRUE blastFlag == 3 [L1640] blastFlag = 4 [L1644] COND FALSE !(ret <= 0) [L1649] s->state = 8448 [L1650] s->hit [L1650] COND TRUE s->hit [L1651] EXPR s->s3 [L1651] (s->s3)->tmp.next_state = 8640 [L1655] s->init_num = 0 [L1716] EXPR s->s3 [L1716] EXPR (s->s3)->tmp.reuse_message [L1716] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1745] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND TRUE s->state == 8640 [L1581] ret = __VERIFIER_nondet_int() [L1582] COND TRUE blastFlag == 4 [L1757] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 246.2s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1147 SdHoareTripleChecker+Valid, 24.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1147 mSDsluCounter, 3827 SdHoareTripleChecker+Invalid, 23.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 58 IncrementalHoareTripleChecker+Unchecked, 2282 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 1545 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1042 GetRequests, 1026 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=993occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 691 NumberOfCodeBlocks, 691 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1040 ConstructedInterpolants, 1 QuantifiedInterpolants, 2069 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1848 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 912/912 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 [2021-11-19 14:37:26,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02ede625-202e-482c-ab50-5dd4edd0de4a/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN