./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI --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 9ae694734f109522fa1ca97e7fe166df1ef5d566 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI --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 9ae694734f109522fa1ca97e7fe166df1ef5d566 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:50,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:50,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:51,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:51,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:51,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:51,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:51,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:51,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:51,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:51,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:51,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:51,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:51,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:51,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:51,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:51,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:51,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:51,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:51,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:51,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:51,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:51,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:51,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:51,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:51,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:51,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:51,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:51,086 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:51,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:51,088 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:51,089 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:51,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:51,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:51,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:51,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:51,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:51,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:51,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:51,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:51,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:51,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:51,139 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:51,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:51,140 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:51,141 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:51,141 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:51,141 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:51,141 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:51,141 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:51,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:51,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:51,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:51,142 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:51,142 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:51,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:51,143 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:51,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:51,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:51,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:51,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:51,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:51,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:51,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:51,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:51,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:51,145 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:51,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:51,146 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:51,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:51,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:51,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:51,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:51,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:51,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:51,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:51,148 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:51,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:51,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:51,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:51,148 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:51,149 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae694734f109522fa1ca97e7fe166df1ef5d566 [2021-10-11 02:20:51,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:51,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:51,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:51,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:51,437 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:51,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-10-11 02:20:51,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/d3e3a1574/93b6d9bede62446ab9b1cf6125999811/FLAG162ee0281 [2021-10-11 02:20:52,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:52,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-10-11 02:20:52,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/d3e3a1574/93b6d9bede62446ab9b1cf6125999811/FLAG162ee0281 [2021-10-11 02:20:52,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/d3e3a1574/93b6d9bede62446ab9b1cf6125999811 [2021-10-11 02:20:52,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:52,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:52,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:52,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:52,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:52,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c50a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52, skipping insertion in model container [2021-10-11 02:20:52,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:52" (1/1) ... [2021-10-11 02:20:52,456 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:52,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:52,827 WARN L226 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-10-11 02:20:52,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:52,840 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) [2021-10-11 02:20:52,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@351c8d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:52, skipping insertion in model container [2021-10-11 02:20:52,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:52,841 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:20:52,843 INFO L168 Benchmark]: Toolchain (without parser) took 419.50 ms. Allocated memory is still 102.8 MB. Free memory was 67.9 MB in the beginning and 73.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:52,844 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 102.8 MB. Free memory was 55.4 MB in the beginning and 55.3 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:52,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.17 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 73.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:52,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 102.8 MB. Free memory was 55.4 MB in the beginning and 55.3 MB in the end (delta: 76.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 416.17 ms. Allocated memory is still 102.8 MB. Free memory was 67.7 MB in the beginning and 73.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 404]: 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... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:20:55,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:55,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:55,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:55,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:55,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:55,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:55,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:55,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:55,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:55,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:55,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:55,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:55,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:55,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:55,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:55,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:55,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:55,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:55,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:55,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:55,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:55,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:55,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:55,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:55,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:55,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:55,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:55,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:55,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:55,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:55,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:55,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:55,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:55,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:55,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:55,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:55,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:55,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:55,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:55,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:55,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:20:55,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:55,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:55,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:55,494 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:55,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:55,494 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:55,494 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:55,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:55,494 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:55,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:55,495 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:55,496 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:55,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:55,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:55,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:55,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:55,497 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:55,497 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:20:55,497 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:20:55,498 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:55,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:55,498 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:55,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:55,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:55,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:20:55,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:55,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:55,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:55,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:55,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:55,501 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:20:55,501 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:20:55,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:55,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:55,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:55,502 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ae694734f109522fa1ca97e7fe166df1ef5d566 [2021-10-11 02:20:55,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:55,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:55,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:55,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:55,927 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:55,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-10-11 02:20:56,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/b246850a4/bcff8d140e444530acb578421d5b0db8/FLAGeb296b08a [2021-10-11 02:20:56,742 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:56,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c [2021-10-11 02:20:56,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/b246850a4/bcff8d140e444530acb578421d5b0db8/FLAGeb296b08a [2021-10-11 02:20:57,011 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/data/b246850a4/bcff8d140e444530acb578421d5b0db8 [2021-10-11 02:20:57,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:57,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:57,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:57,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:57,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:57,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bff1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57, skipping insertion in model container [2021-10-11 02:20:57,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:57,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:57,394 WARN L226 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-10-11 02:20:57,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:57,416 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:20:57,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:57,510 WARN L226 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-10-11 02:20:57,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:57,522 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:57,609 WARN L226 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_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/sv-benchmarks/c/loop-industry-pattern/ofuf_2.c[11342,11355] [2021-10-11 02:20:57,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:57,640 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:57,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57 WrapperNode [2021-10-11 02:20:57,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:57,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:57,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:57,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:57,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:57,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:57,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:57,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:57,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... [2021-10-11 02:20:57,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:57,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:57,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:57,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:57,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-11 02:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-11 02:20:58,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-11 02:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-11 02:20:58,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:20:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:58,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:20:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-10-11 02:20:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 02:20:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-11 02:20:58,036 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2021-10-11 02:20:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2021-10-11 02:20:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:20:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-11 02:20:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:20:58,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:20:59,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:59,751 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-11 02:20:59,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:59 BoogieIcfgContainer [2021-10-11 02:20:59,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:59,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:59,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:59,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:59,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:57" (1/3) ... [2021-10-11 02:20:59,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9aa386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:59, skipping insertion in model container [2021-10-11 02:20:59,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:57" (2/3) ... [2021-10-11 02:20:59,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9aa386 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:59, skipping insertion in model container [2021-10-11 02:20:59,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:59" (3/3) ... [2021-10-11 02:20:59,766 INFO L111 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2021-10-11 02:20:59,780 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:59,784 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:59,795 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:59,846 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:59,846 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:59,846 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:59,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:59,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:59,847 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:59,847 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:59,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2021-10-11 02:20:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:20:59,897 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:59,900 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:59,900 INFO L429 AbstractCegarLoop]: === Iteration 1 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:59,905 INFO L82 PathProgramCache]: Analyzing trace with hash 437048265, now seen corresponding path program 1 times [2021-10-11 02:20:59,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:20:59,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740955070] [2021-10-11 02:20:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:00,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:21:00,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:00,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:00,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:00,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740955070] [2021-10-11 02:21:00,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:00,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:00,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314928265] [2021-10-11 02:21:00,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:00,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:00,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:00,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:00,341 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 2 states. [2021-10-11 02:21:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:00,416 INFO L93 Difference]: Finished difference Result 347 states and 566 transitions. [2021-10-11 02:21:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:00,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2021-10-11 02:21:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:00,435 INFO L225 Difference]: With dead ends: 347 [2021-10-11 02:21:00,435 INFO L226 Difference]: Without dead ends: 172 [2021-10-11 02:21:00,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:00,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-11 02:21:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-10-11 02:21:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2021-10-11 02:21:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 268 transitions. [2021-10-11 02:21:00,534 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 268 transitions. Word has length 19 [2021-10-11 02:21:00,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:00,535 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 268 transitions. [2021-10-11 02:21:00,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 268 transitions. [2021-10-11 02:21:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:21:00,539 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:00,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:00,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:21:00,763 INFO L429 AbstractCegarLoop]: === Iteration 2 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:00,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:00,764 INFO L82 PathProgramCache]: Analyzing trace with hash -794654387, now seen corresponding path program 1 times [2021-10-11 02:21:00,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:00,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772435874] [2021-10-11 02:21:00,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:01,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:01,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:01,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:01,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772435874] [2021-10-11 02:21:01,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:01,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:01,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142010283] [2021-10-11 02:21:01,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:01,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:01,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:01,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:01,169 INFO L87 Difference]: Start difference. First operand 172 states and 268 transitions. Second operand 3 states. [2021-10-11 02:21:01,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:01,307 INFO L93 Difference]: Finished difference Result 486 states and 767 transitions. [2021-10-11 02:21:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:01,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:21:01,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:01,313 INFO L225 Difference]: With dead ends: 486 [2021-10-11 02:21:01,313 INFO L226 Difference]: Without dead ends: 319 [2021-10-11 02:21:01,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:01,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-10-11 02:21:01,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 173. [2021-10-11 02:21:01,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2021-10-11 02:21:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 269 transitions. [2021-10-11 02:21:01,352 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 269 transitions. Word has length 19 [2021-10-11 02:21:01,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:01,352 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 269 transitions. [2021-10-11 02:21:01,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:01,352 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 269 transitions. [2021-10-11 02:21:01,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:21:01,362 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:01,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:01,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:21:01,580 INFO L429 AbstractCegarLoop]: === Iteration 3 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:01,581 INFO L82 PathProgramCache]: Analyzing trace with hash 57389583, now seen corresponding path program 1 times [2021-10-11 02:21:01,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:01,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066661343] [2021-10-11 02:21:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:01,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:01,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:21:01,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:01,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:02,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:02,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066661343] [2021-10-11 02:21:02,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1790897319] [2021-10-11 02:21:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:02,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:21:02,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:21:02,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:02,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:21:02,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2021-10-11 02:21:02,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507497697] [2021-10-11 02:21:02,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:21:02,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:02,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:21:02,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:02,410 INFO L87 Difference]: Start difference. First operand 173 states and 269 transitions. Second operand 4 states. [2021-10-11 02:21:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:02,498 INFO L93 Difference]: Finished difference Result 210 states and 313 transitions. [2021-10-11 02:21:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:21:02,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2021-10-11 02:21:02,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:02,502 INFO L225 Difference]: With dead ends: 210 [2021-10-11 02:21:02,502 INFO L226 Difference]: Without dead ends: 188 [2021-10-11 02:21:02,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:21:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-11 02:21:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2021-10-11 02:21:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2021-10-11 02:21:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 285 transitions. [2021-10-11 02:21:02,528 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 285 transitions. Word has length 21 [2021-10-11 02:21:02,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:02,528 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 285 transitions. [2021-10-11 02:21:02,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:21:02,529 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 285 transitions. [2021-10-11 02:21:02,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:21:02,538 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:02,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:02,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:02,961 INFO L429 AbstractCegarLoop]: === Iteration 4 === [Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash 2115889006, now seen corresponding path program 1 times [2021-10-11 02:21:02,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:02,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387550918] [2021-10-11 02:21:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:03,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:21:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:03,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:03,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:03,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387550918] [2021-10-11 02:21:03,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [469113726] [2021-10-11 02:21:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:03,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:03,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:03,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:21:03,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:21:03,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97156022] [2021-10-11 02:21:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:04,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:21:04,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:21:04,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:04,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2021-10-11 02:21:04,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 6, 6] total 15 [2021-10-11 02:21:04,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579282085] [2021-10-11 02:21:04,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:04,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:04,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:04,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:21:04,250 INFO L87 Difference]: Start difference. First operand 186 states and 285 transitions. Second operand 3 states. [2021-10-11 02:21:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:04,262 INFO L93 Difference]: Finished difference Result 198 states and 299 transitions. [2021-10-11 02:21:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:04,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:21:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:04,264 INFO L225 Difference]: With dead ends: 198 [2021-10-11 02:21:04,264 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:21:04,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:21:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:21:04,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:21:04,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:21:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:21:04,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-11 02:21:04,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:04,267 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:21:04,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:21:04,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:21:04,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:04,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:21:05,033 INFO L262 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,033 INFO L262 CegarLoopResult]: For program point L234-2(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,033 INFO L262 CegarLoopResult]: For program point L234-3(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-5(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-6(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-8(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-9(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-11(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,034 INFO L262 CegarLoopResult]: For program point L234-12(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-14(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-15(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-17(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-18(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-20(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,035 INFO L262 CegarLoopResult]: For program point L234-21(line 234) no Hoare annotation was computed. [2021-10-11 02:21:05,036 INFO L262 CegarLoopResult]: For program point L234-23(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,036 INFO L262 CegarLoopResult]: For program point L202(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,036 INFO L262 CegarLoopResult]: For program point L202-2(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,036 INFO L262 CegarLoopResult]: For program point L202-3(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,036 INFO L262 CegarLoopResult]: For program point L202-5(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L202-6(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L202-8(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L202-9(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L202-11(lines 202 208) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L236(lines 236 241) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L236-1(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,037 INFO L262 CegarLoopResult]: For program point L236-2(lines 236 241) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L236-3(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L236-4(lines 236 241) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L236-5(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L236-6(lines 236 241) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L236-7(lines 234 246) no Hoare annotation was computed. [2021-10-11 02:21:05,038 INFO L262 CegarLoopResult]: For program point L204(lines 204 207) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L204-1(lines 204 207) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L204-2(lines 204 207) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L204-3(lines 204 207) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L304(lines 304 307) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L371(lines 371 374) no Hoare annotation was computed. [2021-10-11 02:21:05,039 INFO L262 CegarLoopResult]: For program point L406-2(lines 406 416) no Hoare annotation was computed. [2021-10-11 02:21:05,040 INFO L265 CegarLoopResult]: At program point L406-3(lines 406 416) the Hoare annotation is: true [2021-10-11 02:21:05,040 INFO L265 CegarLoopResult]: At program point L406-4(lines 406 416) the Hoare annotation is: true [2021-10-11 02:21:05,040 INFO L262 CegarLoopResult]: For program point L308-1(lines 308 315) no Hoare annotation was computed. [2021-10-11 02:21:05,040 INFO L265 CegarLoopResult]: At program point L209(lines 209 225) the Hoare annotation is: true [2021-10-11 02:21:05,040 INFO L265 CegarLoopResult]: At program point L308-3(lines 308 315) the Hoare annotation is: true [2021-10-11 02:21:05,041 INFO L265 CegarLoopResult]: At program point L209-1(lines 209 225) the Hoare annotation is: true [2021-10-11 02:21:05,041 INFO L262 CegarLoopResult]: For program point L308-4(lines 308 315) no Hoare annotation was computed. [2021-10-11 02:21:05,041 INFO L265 CegarLoopResult]: At program point L209-2(lines 209 225) the Hoare annotation is: true [2021-10-11 02:21:05,041 INFO L265 CegarLoopResult]: At program point L209-3(lines 209 225) the Hoare annotation is: true [2021-10-11 02:21:05,041 INFO L262 CegarLoopResult]: For program point L408(line 408) no Hoare annotation was computed. [2021-10-11 02:21:05,041 INFO L262 CegarLoopResult]: For program point L408-2(lines 408 415) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L376-2(lines 376 393) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L265 CegarLoopResult]: At program point L376-3(lines 376 393) the Hoare annotation is: true [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L376-4(lines 376 393) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L211-2(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L211-3(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,042 INFO L262 CegarLoopResult]: For program point L211-5(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L211-6(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L211-8(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L211-9(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L211-11(line 211) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L311(lines 311 314) no Hoare annotation was computed. [2021-10-11 02:21:05,043 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L262 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L262 CegarLoopResult]: For program point L212-4(line 212) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L262 CegarLoopResult]: For program point L212-6(line 212) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L262 CegarLoopResult]: For program point L378(lines 378 381) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L265 CegarLoopResult]: At program point L247(lines 193 248) the Hoare annotation is: true [2021-10-11 02:21:05,044 INFO L262 CegarLoopResult]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,044 INFO L265 CegarLoopResult]: At program point L247-1(lines 193 248) the Hoare annotation is: true [2021-10-11 02:21:05,045 INFO L265 CegarLoopResult]: At program point L247-2(lines 193 248) the Hoare annotation is: true [2021-10-11 02:21:05,045 INFO L262 CegarLoopResult]: For program point L214-2(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,045 INFO L265 CegarLoopResult]: At program point L247-3(lines 193 248) the Hoare annotation is: true [2021-10-11 02:21:05,045 INFO L262 CegarLoopResult]: For program point L214-3(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,045 INFO L262 CegarLoopResult]: For program point L214-5(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,045 INFO L262 CegarLoopResult]: For program point L214-6(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L214-8(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L214-9(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L214-11(line 214) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L215(line 215) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L215-2(line 215) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L215-4(line 215) no Hoare annotation was computed. [2021-10-11 02:21:05,046 INFO L262 CegarLoopResult]: For program point L215-6(line 215) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L316(line 316) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L316-2(line 316) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L217(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L316-3(line 316) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L217-2(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L316-5(lines 316 328) no Hoare annotation was computed. [2021-10-11 02:21:05,047 INFO L262 CegarLoopResult]: For program point L217-3(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L217-5(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L217-6(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L217-8(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L217-9(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L217-11(line 217) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:21:05,048 INFO L262 CegarLoopResult]: For program point L218(line 218) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L218-2(line 218) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L218-4(line 218) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L218-6(line 218) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L318(lines 318 323) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L262 CegarLoopResult]: For program point L318-1(lines 316 328) no Hoare annotation was computed. [2021-10-11 02:21:05,049 INFO L265 CegarLoopResult]: At program point L418(lines 427 458) the Hoare annotation is: true [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L352-2(lines 352 355) no Hoare annotation was computed. [2021-10-11 02:21:05,050 INFO L265 CegarLoopResult]: At program point L352-3(lines 352 355) the Hoare annotation is: true [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L352-4(lines 332 399) no Hoare annotation was computed. [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L220(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L220-3(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,050 INFO L262 CegarLoopResult]: For program point L220-5(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L220-6(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L220-8(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L220-9(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L220-11(line 220) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L452(lines 452 455) no Hoare annotation was computed. [2021-10-11 02:21:05,051 INFO L262 CegarLoopResult]: For program point L221(line 221) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L221-2(line 221) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L221-4(line 221) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L221-6(line 221) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L223(line 223) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L223-2(line 223) no Hoare annotation was computed. [2021-10-11 02:21:05,052 INFO L262 CegarLoopResult]: For program point L223-4(line 223) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L262 CegarLoopResult]: For program point L223-6(line 223) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L262 CegarLoopResult]: For program point L389(lines 389 392) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L262 CegarLoopResult]: For program point L356(lines 356 397) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L262 CegarLoopResult]: For program point L358-2(lines 358 396) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L265 CegarLoopResult]: At program point L358-3(lines 358 396) the Hoare annotation is: true [2021-10-11 02:21:05,053 INFO L262 CegarLoopResult]: For program point L226-1(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,053 INFO L265 CegarLoopResult]: At program point L226-3(lines 226 233) the Hoare annotation is: true [2021-10-11 02:21:05,054 INFO L262 CegarLoopResult]: For program point L226-4(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,054 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:21:05,054 INFO L262 CegarLoopResult]: For program point L226-6(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,054 INFO L265 CegarLoopResult]: At program point L226-8(lines 226 233) the Hoare annotation is: true [2021-10-11 02:21:05,054 INFO L262 CegarLoopResult]: For program point L226-9(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,054 INFO L262 CegarLoopResult]: For program point L226-11(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,054 INFO L265 CegarLoopResult]: At program point L226-13(lines 226 233) the Hoare annotation is: true [2021-10-11 02:21:05,055 INFO L262 CegarLoopResult]: For program point L226-14(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,055 INFO L262 CegarLoopResult]: For program point L226-16(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,055 INFO L265 CegarLoopResult]: At program point L226-18(lines 226 233) the Hoare annotation is: true [2021-10-11 02:21:05,055 INFO L262 CegarLoopResult]: For program point L226-19(lines 226 233) no Hoare annotation was computed. [2021-10-11 02:21:05,055 INFO L262 CegarLoopResult]: For program point L361(lines 361 364) no Hoare annotation was computed. [2021-10-11 02:21:05,055 INFO L262 CegarLoopResult]: For program point L229(lines 229 232) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L229-1(lines 229 232) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L229-2(lines 229 232) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L229-3(lines 229 232) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L265 CegarLoopResult]: At program point L329(lines 300 330) the Hoare annotation is: true [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L198(lines 198 201) no Hoare annotation was computed. [2021-10-11 02:21:05,056 INFO L262 CegarLoopResult]: For program point L198-1(lines 198 201) no Hoare annotation was computed. [2021-10-11 02:21:05,057 INFO L262 CegarLoopResult]: For program point L198-2(lines 198 201) no Hoare annotation was computed. [2021-10-11 02:21:05,057 INFO L262 CegarLoopResult]: For program point L198-3(lines 198 201) no Hoare annotation was computed. [2021-10-11 02:21:05,057 INFO L265 CegarLoopResult]: At program point L398(lines 331 399) the Hoare annotation is: true [2021-10-11 02:21:05,057 INFO L262 CegarLoopResult]: For program point L365(lines 365 368) no Hoare annotation was computed. [2021-10-11 02:21:05,057 INFO L262 CegarLoopResult]: For program point L461(lines 461 464) no Hoare annotation was computed. [2021-10-11 02:21:05,057 INFO L262 CegarLoopResult]: For program point L11(lines 11 14) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L258 CegarLoopResult]: At program point L461-2(lines 459 466) the Hoare annotation is: (and (= (_ bv1 32) Id_MCDC_95___VERIFIER_assert_~Id_MCDC_103) (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93))) [2021-10-11 02:21:05,058 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 14) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L262 CegarLoopResult]: For program point L288(lines 288 295) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L262 CegarLoopResult]: For program point L255(lines 255 269) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L262 CegarLoopResult]: For program point L288-2(lines 288 295) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L262 CegarLoopResult]: For program point L284(lines 284 287) no Hoare annotation was computed. [2021-10-11 02:21:05,058 INFO L265 CegarLoopResult]: At program point Id_MCDC_95ENTRY(lines 280 299) the Hoare annotation is: true [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point Id_MCDC_95EXIT(lines 280 299) no Hoare annotation was computed. [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point L9(lines 9 15) no Hoare annotation was computed. [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point Id_MCDC_95Err0ASSERT_VIOLATIONERROR_FUNCTION(line 463) no Hoare annotation was computed. [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point L9-1(lines 9 15) no Hoare annotation was computed. [2021-10-11 02:21:05,059 INFO L262 CegarLoopResult]: For program point L261(lines 261 269) no Hoare annotation was computed. [2021-10-11 02:21:05,060 INFO L258 CegarLoopResult]: At program point L290(line 290) the Hoare annotation is: (or (not (= (_ bv4 32) |Id_MCDC_95_#in~Id_MCDC_93|)) (= (_ bv4 32) Id_MCDC_95_~Id_MCDC_93)) [2021-10-11 02:21:05,060 INFO L262 CegarLoopResult]: For program point L290-1(line 290) no Hoare annotation was computed. [2021-10-11 02:21:05,060 INFO L265 CegarLoopResult]: At program point L278(lines 249 279) the Hoare annotation is: true [2021-10-11 02:21:05,060 INFO L262 CegarLoopResult]: For program point L270-1(lines 250 279) no Hoare annotation was computed. [2021-10-11 02:21:05,060 INFO L262 CegarLoopResult]: For program point L270-2(lines 270 277) no Hoare annotation was computed. [2021-10-11 02:21:05,060 INFO L262 CegarLoopResult]: For program point Id_MCDC_95FINAL(lines 280 299) no Hoare annotation was computed. [2021-10-11 02:21:05,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:05 BoogieIcfgContainer [2021-10-11 02:21:05,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:05,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:05,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:05,076 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:05,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:59" (3/4) ... [2021-10-11 02:21:05,080 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:21:05,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Id_MCDC_95 [2021-10-11 02:21:05,103 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-10-11 02:21:05,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-10-11 02:21:05,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:21:05,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:21:05,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:05,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:05,161 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == Id_MCDC_103 && (!(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93) [2021-10-11 02:21:05,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18b5a3f8-60ad-4eb0-aa59-cf7efa413df4/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:05,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:05,259 INFO L168 Benchmark]: Toolchain (without parser) took 8240.81 ms. Allocated memory was 58.7 MB in the beginning and 132.1 MB in the end (delta: 73.4 MB). Free memory was 35.9 MB in the beginning and 57.5 MB in the end (delta: -21.7 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,259 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:05,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.53 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 35.6 MB in the beginning and 41.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.94 ms. Allocated memory is still 73.4 MB. Free memory was 41.7 MB in the beginning and 54.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,261 INFO L168 Benchmark]: Boogie Preprocessor took 130.04 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 49.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,261 INFO L168 Benchmark]: RCFGBuilder took 1839.58 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 49.0 MB in the beginning and 55.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,262 INFO L168 Benchmark]: TraceAbstraction took 5319.61 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 54.5 MB in the beginning and 74.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,262 INFO L168 Benchmark]: Witness Printer took 181.50 ms. Allocated memory is still 132.1 MB. Free memory was 74.3 MB in the beginning and 57.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:05,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 45.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.53 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 35.6 MB in the beginning and 41.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.94 ms. Allocated memory is still 73.4 MB. Free memory was 41.7 MB in the beginning and 54.3 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.04 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 49.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1839.58 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 49.0 MB in the beginning and 55.0 MB in the end (delta: -6.0 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5319.61 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 54.5 MB in the beginning and 74.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Witness Printer took 181.50 ms. Allocated memory is still 132.1 MB. Free memory was 74.3 MB in the beginning and 57.5 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 463]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: 1bv32 == Id_MCDC_103 && (!(4bv32 == \old(Id_MCDC_93)) || 4bv32 == Id_MCDC_93) - InvariantResult [Line: 376]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 406]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 308]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1254 SDtfs, 284 SDslu, 1052 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 148 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 49 PreInvPairs, 80 NumberOfFragments, 43 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 6752 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1629 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 13/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...