./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a94ea84ce989fbbbaf2c8eaba75d5160290d15621b4e8c8582440d0d85685d8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:39:53,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:39:53,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:39:53,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:39:53,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:39:53,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:39:53,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:39:53,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:39:53,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:39:53,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:39:53,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:39:53,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:39:53,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:39:53,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:39:53,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:39:53,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:39:53,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:39:53,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:39:53,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:39:53,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:39:53,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:39:53,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:39:53,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:39:53,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:39:53,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:39:53,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:39:53,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:39:53,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:39:53,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:39:53,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:39:53,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:39:53,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:39:53,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:39:53,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:39:53,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:39:53,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:39:53,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:39:53,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:39:53,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:39:53,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:39:53,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:39:53,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:39:53,190 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:39:53,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:39:53,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:39:53,192 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:39:53,193 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:39:53,193 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:39:53,193 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:39:53,193 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:39:53,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:39:53,200 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:39:53,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:39:53,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:39:53,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:39:53,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:39:53,202 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:39:53,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:39:53,203 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:39:53,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:39:53,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:39:53,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:39:53,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:39:53,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:39:53,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:39:53,205 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:39:53,205 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:39:53,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:39:53,206 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:39:53,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:39:53,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:39:53,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:39:53,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:39:53,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:39:53,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:39:53,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:39:53,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:39:53,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:39:53,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:39:53,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:39:53,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:39:53,209 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_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94ea84ce989fbbbaf2c8eaba75d5160290d15621b4e8c8582440d0d85685d8d [2021-11-07 01:39:53,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:39:53,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:39:53,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:39:53,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:39:53,547 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:39:53,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2021-11-07 01:39:53,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/6a7522a2e/5f0b3749c9664b5da17828460291112e/FLAG36a113645 [2021-11-07 01:39:54,310 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:39:54,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2021-11-07 01:39:54,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/6a7522a2e/5f0b3749c9664b5da17828460291112e/FLAG36a113645 [2021-11-07 01:39:54,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/6a7522a2e/5f0b3749c9664b5da17828460291112e [2021-11-07 01:39:54,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:39:54,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:39:54,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:54,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:39:54,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:39:54,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:54" (1/1) ... [2021-11-07 01:39:54,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716bb7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:54, skipping insertion in model container [2021-11-07 01:39:54,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:54" (1/1) ... [2021-11-07 01:39:54,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:39:54,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:39:55,008 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2021-11-07 01:39:55,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:55,037 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 01:39:55,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3173b579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:55, skipping insertion in model container [2021-11-07 01:39:55,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:55,038 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:39:55,041 INFO L168 Benchmark]: Toolchain (without parser) took 550.03 ms. Allocated memory is still 121.6 MB. Free memory was 90.9 MB in the beginning and 86.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:39:55,041 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:39:55,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.74 ms. Allocated memory is still 121.6 MB. Free memory was 90.9 MB in the beginning and 86.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:39:55,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 121.6 MB. Free memory is still 74.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 547.74 ms. Allocated memory is still 121.6 MB. Free memory was 90.9 MB in the beginning and 86.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * 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_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a94ea84ce989fbbbaf2c8eaba75d5160290d15621b4e8c8582440d0d85685d8d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:39:57,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:39:57,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:39:57,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:39:57,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:39:57,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:39:57,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:39:57,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:39:57,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:39:57,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:39:57,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:39:57,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:39:57,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:39:57,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:39:57,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:39:57,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:39:57,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:39:57,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:39:57,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:39:57,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:39:57,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:39:57,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:39:57,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:39:57,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:39:57,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:39:57,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:39:57,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:39:57,438 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:39:57,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:39:57,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:39:57,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:39:57,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:39:57,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:39:57,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:39:57,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:39:57,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:39:57,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:39:57,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:39:57,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:39:57,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:39:57,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:39:57,451 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:39:57,498 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:39:57,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:39:57,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:39:57,500 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:39:57,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:39:57,500 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:39:57,501 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:39:57,501 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:39:57,501 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:39:57,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:39:57,504 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:39:57,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:39:57,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:39:57,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:39:57,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:39:57,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:39:57,506 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:39:57,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:39:57,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:39:57,506 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:39:57,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:39:57,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:39:57,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:39:57,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:39:57,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:39:57,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:39:57,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:39:57,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:39:57,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:39:57,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:39:57,509 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:39:57,509 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:39:57,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:39:57,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:39:57,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:39:57,511 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_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94ea84ce989fbbbaf2c8eaba75d5160290d15621b4e8c8582440d0d85685d8d [2021-11-07 01:39:57,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:39:57,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:39:57,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:39:57,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:39:57,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:39:57,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2021-11-07 01:39:58,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/74892e5ef/addb2b7dee054f0baacb4a5ea3173228/FLAG5b0347309 [2021-11-07 01:39:58,671 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:39:58,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c [2021-11-07 01:39:58,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/74892e5ef/addb2b7dee054f0baacb4a5ea3173228/FLAG5b0347309 [2021-11-07 01:39:58,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/data/74892e5ef/addb2b7dee054f0baacb4a5ea3173228 [2021-11-07 01:39:58,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:39:58,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:39:58,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:58,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:39:58,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:39:58,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:58" (1/1) ... [2021-11-07 01:39:58,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5987c99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:58, skipping insertion in model container [2021-11-07 01:39:58,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:39:58" (1/1) ... [2021-11-07 01:39:58,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:39:58,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:39:59,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2021-11-07 01:39:59,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:59,584 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:39:59,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:39:59,708 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2021-11-07 01:39:59,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:59,721 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:39:59,837 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/sv-benchmarks/c/openssl/s3_clnt.blast.01.i.cil-1.c[65523,65536] [2021-11-07 01:39:59,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:39:59,858 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:39:59,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59 WrapperNode [2021-11-07 01:39:59,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:39:59,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:39:59,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:39:59,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:39:59,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:39:59,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:39:59,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:39:59,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:39:59,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:39:59,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:39:59,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:39:59,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:40:00,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:40:00,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:40:00,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:40:00,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (1/1) ... [2021-11-07 01:40:00,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:00,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:00,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:40:00,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:40:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:40:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:40:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:40:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:40:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:40:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:40:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:40:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:40:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:40:00,437 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-07 01:40:08,951 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-07 01:40:08,951 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-07 01:40:08,958 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:40:08,959 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 01:40:08,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:08 BoogieIcfgContainer [2021-11-07 01:40:08,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:40:08,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:40:08,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:40:08,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:40:08,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:39:58" (1/3) ... [2021-11-07 01:40:08,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577f5349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:08, skipping insertion in model container [2021-11-07 01:40:08,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:39:59" (2/3) ... [2021-11-07 01:40:08,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577f5349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:08, skipping insertion in model container [2021-11-07 01:40:08,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:08" (3/3) ... [2021-11-07 01:40:08,970 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2021-11-07 01:40:08,975 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:40:08,975 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:40:09,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:40:09,029 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:40:09,030 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:40:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:40:09,056 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:09,056 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:09,057 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:09,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1457703966, now seen corresponding path program 1 times [2021-11-07 01:40:09,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:09,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945594630] [2021-11-07 01:40:09,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:09,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:09,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:09,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:09,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:40:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:09,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:09,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:09,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:09,906 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:09,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945594630] [2021-11-07 01:40:09,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945594630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:09,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:09,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:40:09,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132436482] [2021-11-07 01:40:09,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:40:09,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:09,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:40:09,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:09,940 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.689922480620155) internal successors, (218), 130 states have internal predecessors, (218), 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 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:10,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:10,186 INFO L93 Difference]: Finished difference Result 496 states and 829 transitions. [2021-11-07 01:40:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:40:10,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 24 [2021-11-07 01:40:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:10,217 INFO L225 Difference]: With dead ends: 496 [2021-11-07 01:40:10,217 INFO L226 Difference]: Without dead ends: 321 [2021-11-07 01:40:10,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:10,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-07 01:40:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2021-11-07 01:40:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.49375) internal successors, (478), 320 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 478 transitions. [2021-11-07 01:40:10,295 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 478 transitions. Word has length 24 [2021-11-07 01:40:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:10,296 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 478 transitions. [2021-11-07 01:40:10,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:10,297 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 478 transitions. [2021-11-07 01:40:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 01:40:10,301 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:10,301 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 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] [2021-11-07 01:40:10,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:10,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:10,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash 908084980, now seen corresponding path program 1 times [2021-11-07 01:40:10,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:10,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67323969] [2021-11-07 01:40:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:10,517 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:10,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:10,519 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:10,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:40:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:10,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:10,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:11,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:11,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:11,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [67323969] [2021-11-07 01:40:11,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [67323969] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:11,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:11,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:40:11,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646493676] [2021-11-07 01:40:11,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:40:11,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:11,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:40:11,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:11,625 INFO L87 Difference]: Start difference. First operand 321 states and 478 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:13,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:13,890 INFO L93 Difference]: Finished difference Result 836 states and 1249 transitions. [2021-11-07 01:40:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:40:13,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 65 [2021-11-07 01:40:13,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:13,895 INFO L225 Difference]: With dead ends: 836 [2021-11-07 01:40:13,895 INFO L226 Difference]: Without dead ends: 625 [2021-11-07 01:40:13,898 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-11-07 01:40:13,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 525. [2021-11-07 01:40:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 1.4866412213740459) internal successors, (779), 524 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:13,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 779 transitions. [2021-11-07 01:40:13,974 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 779 transitions. Word has length 65 [2021-11-07 01:40:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:13,975 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 779 transitions. [2021-11-07 01:40:13,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:13,975 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 779 transitions. [2021-11-07 01:40:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 01:40:13,995 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:13,995 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2021-11-07 01:40:14,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:14,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:14,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1159650437, now seen corresponding path program 1 times [2021-11-07 01:40:14,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:14,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169184884] [2021-11-07 01:40:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:14,200 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:14,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:14,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:40:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:14,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:14,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-07 01:40:15,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-07 01:40:15,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:15,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169184884] [2021-11-07 01:40:15,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169184884] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:15,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:15,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:40:15,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62151087] [2021-11-07 01:40:15,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:40:15,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:40:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:15,549 INFO L87 Difference]: Start difference. First operand 525 states and 779 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:17,761 INFO L93 Difference]: Finished difference Result 1248 states and 1856 transitions. [2021-11-07 01:40:17,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:40:17,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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 104 [2021-11-07 01:40:17,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:17,768 INFO L225 Difference]: With dead ends: 1248 [2021-11-07 01:40:17,768 INFO L226 Difference]: Without dead ends: 833 [2021-11-07 01:40:17,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:17,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2021-11-07 01:40:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 732. [2021-11-07 01:40:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.481532147742818) internal successors, (1083), 731 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:17,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1083 transitions. [2021-11-07 01:40:17,817 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1083 transitions. Word has length 104 [2021-11-07 01:40:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:17,821 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1083 transitions. [2021-11-07 01:40:17,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1083 transitions. [2021-11-07 01:40:17,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 01:40:17,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:17,840 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1] [2021-11-07 01:40:17,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:18,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:18,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:18,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash 876212838, now seen corresponding path program 1 times [2021-11-07 01:40:18,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:18,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879053558] [2021-11-07 01:40:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:18,044 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:18,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:18,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:18,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb097d6c-6ca6-4ed8-af20-3bffda8bceb7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:40:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:19,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:40:19,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:38,102 WARN L207 SmtUtils]: Spent 18.96 s on a formula simplification that was a NOOP. DAG size: 19 [2021-11-07 01:40:38,103 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:40:38,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4938 treesize of output 4458 [2021-11-07 01:41:18,409 WARN L207 SmtUtils]: Spent 40.26 s on a formula simplification that was a NOOP. DAG size: 23 [2021-11-07 01:41:18,410 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:41:18,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4439 treesize of output 4067