./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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 253b2130a235408df8c2a581facc1d40316361da7beeb584c737673c98999cc2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:24:53,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:24:53,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:24:53,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:24:53,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:24:53,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:24:53,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:24:53,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:24:53,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:24:53,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:24:53,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:24:53,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:24:53,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:24:53,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:24:53,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:24:53,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:24:53,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:24:53,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:24:53,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:24:53,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:24:53,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:24:53,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:24:53,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:24:53,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:24:53,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:24:53,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:24:53,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:24:53,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:24:53,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:24:53,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:24:53,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:24:53,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:24:53,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:24:53,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:24:53,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:24:53,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:24:53,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:24:53,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:24:53,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:24:53,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:24:53,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:24:53,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:24:53,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:24:53,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:24:53,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:24:53,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:24:53,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:24:53,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:24:53,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:24:53,285 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:24:53,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:24:53,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:24:53,286 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:24:53,286 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:24:53,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:24:53,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:24:53,287 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:24:53,287 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:24:53,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:24:53,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:24:53,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:24:53,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:24:53,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:24:53,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:24:53,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:24:53,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:24:53,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:24:53,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:24:53,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:24:53,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:24:53,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:24:53,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:24:53,291 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:24:53,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:24:53,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:24:53,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:24:53,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:24:53,292 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 253b2130a235408df8c2a581facc1d40316361da7beeb584c737673c98999cc2 [2021-11-19 14:24:53,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:24:53,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:24:53,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:24:53,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:24:53,630 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:24:53,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-11-19 14:24:53,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/89d22f669/709e68902a9e417b9edce98e3dba593d/FLAG3d56f787d [2021-11-19 14:24:54,447 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:24:54,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-11-19 14:24:54,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/89d22f669/709e68902a9e417b9edce98e3dba593d/FLAG3d56f787d [2021-11-19 14:24:54,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/89d22f669/709e68902a9e417b9edce98e3dba593d [2021-11-19 14:24:54,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:24:54,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:24:54,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:24:54,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:24:54,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:24:54,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:54" (1/1) ... [2021-11-19 14:24:54,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e322f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:54, skipping insertion in model container [2021-11-19 14:24:54,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:54" (1/1) ... [2021-11-19 14:24:54,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:24:54,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:24:55,200 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c[65405,65418] [2021-11-19 14:24:55,220 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:55,247 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 14:24:55,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c2ef5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:55, skipping insertion in model container [2021-11-19 14:24:55,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:24:55,248 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:24:55,252 INFO L158 Benchmark]: Toolchain (without parser) took 609.31ms. Allocated memory is still 102.8MB. Free memory was 62.6MB in the beginning and 67.0MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:24:55,252 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 102.8MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:24:55,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.85ms. Allocated memory is still 102.8MB. Free memory was 62.4MB in the beginning and 67.0MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:24:55,256 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 102.8MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 604.85ms. Allocated memory is still 102.8MB. Free memory was 62.4MB in the beginning and 67.0MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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 253b2130a235408df8c2a581facc1d40316361da7beeb584c737673c98999cc2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:24:57,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:24:57,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:24:57,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:24:57,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:24:57,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:24:57,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:24:57,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:24:57,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:24:57,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:24:57,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:24:57,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:24:57,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:24:57,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:24:57,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:24:57,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:24:57,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:24:57,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:24:57,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:24:57,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:24:57,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:24:57,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:24:57,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:24:57,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:24:57,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:24:57,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:24:57,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:24:57,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:24:57,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:24:57,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:24:57,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:24:57,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:24:57,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:24:57,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:24:57,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:24:57,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:24:57,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:24:57,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:24:57,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:24:57,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:24:57,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:24:57,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:24:57,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:24:57,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:24:57,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:24:57,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:24:57,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:24:57,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:24:57,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:24:57,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:24:57,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:24:57,630 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:24:57,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:24:57,631 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:24:57,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:24:57,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:24:57,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:24:57,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:24:57,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:24:57,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:24:57,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:24:57,635 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:24:57,638 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:24:57,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:24:57,639 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:24:57,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:24:57,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:24:57,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:24:57,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:24:57,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:24:57,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:24:57,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:24:57,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:24:57,642 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:24:57,642 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:57,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:24:57,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:24:57,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:24:57,644 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 253b2130a235408df8c2a581facc1d40316361da7beeb584c737673c98999cc2 [2021-11-19 14:24:58,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:24:58,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:24:58,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:24:58,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:24:58,144 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:24:58,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-11-19 14:24:58,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/8e994c28e/2d44d3faf8b046ba94cb83dd0e519507/FLAGb2f0df8af [2021-11-19 14:24:58,896 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:24:58,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c [2021-11-19 14:24:58,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/8e994c28e/2d44d3faf8b046ba94cb83dd0e519507/FLAGb2f0df8af [2021-11-19 14:24:59,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/data/8e994c28e/2d44d3faf8b046ba94cb83dd0e519507 [2021-11-19 14:24:59,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:24:59,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:24:59,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:24:59,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:24:59,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:24:59,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:59" (1/1) ... [2021-11-19 14:24:59,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5091eff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:24:59, skipping insertion in model container [2021-11-19 14:24:59,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:24:59" (1/1) ... [2021-11-19 14:24:59,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:24:59,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:24:59,744 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c[65405,65418] [2021-11-19 14:24:59,756 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:59,781 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:24:59,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:24:59,883 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c[65405,65418] [2021-11-19 14:24:59,886 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:24:59,894 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:24:59,979 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_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/sv-benchmarks/c/openssl/s3_clnt.blast.04.i.cil-1.c[65405,65418] [2021-11-19 14:24:59,982 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:25:00,002 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:25:00,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00 WrapperNode [2021-11-19 14:25:00,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:25:00,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:25:00,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:25:00,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:25:00,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,140 INFO L137 Inliner]: procedures = 36, calls = 217, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 688 [2021-11-19 14:25:00,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:25:00,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:25:00,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:25:00,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:25:00,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:25:00,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:25:00,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:25:00,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:25:00,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (1/1) ... [2021-11-19 14:25:00,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:25:00,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:25:00,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:25:00,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:25:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:25:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:25:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:25:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:25:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:25:00,570 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:25:00,572 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:25:00,594 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-19 14:25:10,131 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-11-19 14:25:10,131 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-11-19 14:25:10,132 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:25:10,140 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:25:10,140 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:25:10,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:25:10 BoogieIcfgContainer [2021-11-19 14:25:10,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:25:10,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:25:10,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:25:10,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:25:10,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:24:59" (1/3) ... [2021-11-19 14:25:10,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66920fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:25:10, skipping insertion in model container [2021-11-19 14:25:10,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:25:00" (2/3) ... [2021-11-19 14:25:10,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66920fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:25:10, skipping insertion in model container [2021-11-19 14:25:10,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:25:10" (3/3) ... [2021-11-19 14:25:10,151 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-1.c [2021-11-19 14:25:10,157 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:25:10,157 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:25:10,207 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:25:10,215 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 14:25:10,215 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:25:10,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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 14:25:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-19 14:25:10,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:10,242 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] [2021-11-19 14:25:10,243 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:25:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1457695037, now seen corresponding path program 1 times [2021-11-19 14:25:10,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:10,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89653840] [2021-11-19 14:25:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:10,266 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:10,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:10,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:25:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:10,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:25:10,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:10,839 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 14:25:10,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:11,062 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 14:25:11,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:11,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89653840] [2021-11-19 14:25:11,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89653840] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:25:11,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:25:11,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:25:11,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297457915] [2021-11-19 14:25:11,068 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:25:11,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:25:11,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:25:11,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:25:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:25:11,120 INFO L87 Difference]: Start difference. First operand has 129 states, 127 states have (on average 1.7086614173228347) internal successors, (217), 128 states have internal predecessors, (217), 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) [2021-11-19 14:25:11,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:25:11,376 INFO L93 Difference]: Finished difference Result 487 states and 823 transitions. [2021-11-19 14:25:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:25:11,382 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 [2021-11-19 14:25:11,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:25:11,395 INFO L225 Difference]: With dead ends: 487 [2021-11-19 14:25:11,396 INFO L226 Difference]: Without dead ends: 314 [2021-11-19 14:25:11,400 INFO L932 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 [2021-11-19 14:25:11,404 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 359 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:25:11,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 588 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:25:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-19 14:25:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-11-19 14:25:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.5015974440894568) internal successors, (470), 313 states have internal predecessors, (470), 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 14:25:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 470 transitions. [2021-11-19 14:25:11,472 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 470 transitions. Word has length 24 [2021-11-19 14:25:11,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:25:11,474 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 470 transitions. [2021-11-19 14:25:11,474 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) [2021-11-19 14:25:11,475 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 470 transitions. [2021-11-19 14:25:11,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-19 14:25:11,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:11,486 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 14:25:11,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:11,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:25:11,699 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:25:11,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1854239308, now seen corresponding path program 1 times [2021-11-19 14:25:11,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:11,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883372024] [2021-11-19 14:25:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:11,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:11,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:11,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:11,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:25:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:12,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:25:12,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:25:12,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:25:12,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:12,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883372024] [2021-11-19 14:25:12,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883372024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:25:12,604 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:25:12,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:25:12,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417655565] [2021-11-19 14:25:12,606 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:25:12,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:25:12,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:25:12,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:25:12,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:25:12,611 INFO L87 Difference]: Start difference. First operand 314 states and 470 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:25:14,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:25:14,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:25:14,856 INFO L93 Difference]: Finished difference Result 721 states and 1085 transitions. [2021-11-19 14:25:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:25:14,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:25:14,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:25:14,861 INFO L225 Difference]: With dead ends: 721 [2021-11-19 14:25:14,861 INFO L226 Difference]: Without dead ends: 515 [2021-11-19 14:25:14,863 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 14:25:14,865 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 270 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:25:14,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 595 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:25:14,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-11-19 14:25:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-11-19 14:25:14,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.4941634241245136) internal successors, (768), 514 states have internal predecessors, (768), 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 14:25:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 768 transitions. [2021-11-19 14:25:14,940 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 768 transitions. Word has length 60 [2021-11-19 14:25:14,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:25:14,940 INFO L470 AbstractCegarLoop]: Abstraction has 515 states and 768 transitions. [2021-11-19 14:25:14,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:25:14,941 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 768 transitions. [2021-11-19 14:25:14,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-19 14:25:14,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:14,949 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2021-11-19 14:25:14,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:15,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:25:15,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:25:15,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:15,167 INFO L85 PathProgramCache]: Analyzing trace with hash 465583256, now seen corresponding path program 1 times [2021-11-19 14:25:15,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:15,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771985471] [2021-11-19 14:25:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:15,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:15,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:15,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8866cfb7-30ef-4cc3-9865-e5b565fe1ce4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:25:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:16,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:25:16,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:18,629 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:25:18,630 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 [2021-11-19 14:25:59,019 WARN L227 SmtUtils]: Spent 40.31s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-19 14:25:59,019 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:25:59,021 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