./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:51,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:51,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:51,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:51,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:51,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:51,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:51,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:51,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:51,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:51,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:51,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:51,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:51,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:51,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:51,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:51,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:51,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:51,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:51,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:51,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:51,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:51,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:51,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:51,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:51,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:51,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:51,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:51,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:51,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:51,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:51,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:51,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:51,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:51,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:51,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:51,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:51,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:51,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:51,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:51,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:51,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:59:51,271 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:51,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:51,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:51,274 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:51,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:51,274 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:51,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:59:51,275 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:51,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:51,282 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:59:51,284 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:59:51,284 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:51,284 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:59:51,285 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:59:51,285 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:59:51,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:51,286 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:59:51,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:59:51,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:59:51,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:51,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:51,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:51,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:51,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:51,288 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:59:51,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:51,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:51,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:51,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:51,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:51,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:51,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:51,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:51,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:51,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:59:51,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:59:51,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:51,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:51,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:51,294 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_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 [2021-11-07 00:59:51,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:51,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:51,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:51,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:51,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:51,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-11-07 00:59:51,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/16be7c71e/e73e7d9579d14ffcb0da51dff7926b5c/FLAG7b2d12100 [2021-11-07 00:59:52,395 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:52,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i [2021-11-07 00:59:52,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/16be7c71e/e73e7d9579d14ffcb0da51dff7926b5c/FLAG7b2d12100 [2021-11-07 00:59:52,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/16be7c71e/e73e7d9579d14ffcb0da51dff7926b5c [2021-11-07 00:59:52,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:52,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:52,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:52,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:52,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:52,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:52" (1/1) ... [2021-11-07 00:59:52,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632fb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:52, skipping insertion in model container [2021-11-07 00:59:52,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:52" (1/1) ... [2021-11-07 00:59:52,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:52,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:53,017 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-11-07 00:59:53,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:53,051 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-07 00:59:53,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30edbee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53, skipping insertion in model container [2021-11-07 00:59:53,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:53,052 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:59:53,054 INFO L168 Benchmark]: Toolchain (without parser) took 293.32 ms. Allocated memory is still 123.7 MB. Free memory was 92.2 MB in the beginning and 100.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:53,055 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:59:53,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.00 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 100.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:53,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.00 ms. Allocated memory is still 123.7 MB. Free memory was 92.0 MB in the beginning and 100.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 32]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:55,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:55,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:55,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:55,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:55,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:55,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:55,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:55,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:55,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:55,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:55,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:55,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:55,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:55,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:55,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:55,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:55,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:55,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:55,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:55,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:55,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:55,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:55,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:55,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:55,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:55,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:55,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:55,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:55,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:55,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:55,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:55,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:55,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:55,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:55,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:55,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:55,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:55,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:55,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:55,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:55,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:59:55,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:55,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:55,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:55,975 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:55,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:55,975 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:55,975 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:55,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:55,976 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:55,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:55,978 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:59:55,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:59:55,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:55,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:55,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:55,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:55,980 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:55,980 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:59:55,980 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:59:55,980 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:59:55,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:55,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:55,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:55,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:55,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:59:55,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:55,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:55,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:55,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:55,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:55,982 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:59:55,983 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:59:55,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:55,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:55,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:55,984 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_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 [2021-11-07 00:59:56,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:56,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:56,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:56,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:56,560 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:56,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-11-07 00:59:56,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/a29b75e82/2dc3497745cf42fa987677790a70798d/FLAG4ef7a76c6 [2021-11-07 00:59:57,342 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:57,344 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i [2021-11-07 00:59:57,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/a29b75e82/2dc3497745cf42fa987677790a70798d/FLAG4ef7a76c6 [2021-11-07 00:59:57,662 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/data/a29b75e82/2dc3497745cf42fa987677790a70798d [2021-11-07 00:59:57,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:57,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:57,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:57,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:57,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:57,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:57" (1/1) ... [2021-11-07 00:59:57,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e49aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:57, skipping insertion in model container [2021-11-07 00:59:57,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:57" (1/1) ... [2021-11-07 00:59:57,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:57,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:57,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-11-07 00:59:57,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:57,966 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:59:57,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:57,984 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-11-07 00:59:57,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:57,997 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:59:58,012 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-11-07 00:59:58,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:58,040 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:59:58,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58 WrapperNode [2021-11-07 00:59:58,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:58,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:58,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:59:58,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:59:58,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:58,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:59:58,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:59:58,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:59:58,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:59:58,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:59:58,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:59:58,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:59:58,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (1/1) ... [2021-11-07 00:59:58,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:58,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:59:58,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:59:58,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:59:58,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:59:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:59:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:59:58,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:59:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:59:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:59:58,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:59:58,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:59:58,623 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-07 00:59:58,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:58 BoogieIcfgContainer [2021-11-07 00:59:58,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:59:58,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:59:58,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:59:58,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:59:58,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:59:57" (1/3) ... [2021-11-07 00:59:58,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73878f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:58, skipping insertion in model container [2021-11-07 00:59:58,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:58" (2/3) ... [2021-11-07 00:59:58,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73878f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:59:58, skipping insertion in model container [2021-11-07 00:59:58,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:58" (3/3) ... [2021-11-07 00:59:58,646 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.i [2021-11-07 00:59:58,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:59:58,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 00:59:58,739 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:59:58,760 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 00:59:58,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 00:59:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:59:58,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-07 00:59:58,800 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:58,800 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-07 00:59:58,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:59:58,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:58,808 INFO L85 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2021-11-07 00:59:58,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:58,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605269824] [2021-11-07 00:59:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:58,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:58,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:58,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:58,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:59:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:59,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 00:59:59,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:59:59,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 00:59:59,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 00:59:59,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2021-11-07 00:59:59,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 00:59:59,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 26 [2021-11-07 00:59:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:59:59,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:59,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 96 [2021-11-07 01:00:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:00:00,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:00,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605269824] [2021-11-07 01:00:00,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1605269824] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:00,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:00,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2021-11-07 01:00:00,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462409898] [2021-11-07 01:00:00,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:00:00,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:00,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:00:00,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:00:00,180 INFO L87 Difference]: Start difference. First operand has 17 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:00,393 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-11-07 01:00:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:00:00,395 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-07 01:00:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:00,404 INFO L225 Difference]: With dead ends: 27 [2021-11-07 01:00:00,404 INFO L226 Difference]: Without dead ends: 10 [2021-11-07 01:00:00,407 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:00:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-07 01:00:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-07 01:00:00,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-11-07 01:00:00,443 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2021-11-07 01:00:00,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:00,444 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-11-07 01:00:00,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:00:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-11-07 01:00:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:00:00,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:00,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:00:00,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:00:00,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:00,669 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:00:00,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:00,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2021-11-07 01:00:00,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:00,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990479071] [2021-11-07 01:00:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:00,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:00,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:00,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:00,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:00:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:00:00,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:00:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:00:00,911 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:00:00,912 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:00:00,917 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:00:00,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:00:00,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:01,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:01,125 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 01:00:01,130 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:00:01,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:00:01 BoogieIcfgContainer [2021-11-07 01:00:01,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:00:01,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:00:01,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:00:01,170 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:00:01,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:59:58" (3/4) ... [2021-11-07 01:00:01,174 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:00:01,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:00:01,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:00:01,227 INFO L168 Benchmark]: Toolchain (without parser) took 3554.86 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 52.1 MB in the beginning and 74.9 MB in the end (delta: -22.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,229 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:01,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.50 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 41.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.57 ms. Allocated memory is still 71.3 MB. Free memory was 41.1 MB in the beginning and 53.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,232 INFO L168 Benchmark]: Boogie Preprocessor took 35.25 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 52.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:00:01,233 INFO L168 Benchmark]: RCFGBuilder took 445.27 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 41.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,233 INFO L168 Benchmark]: TraceAbstraction took 2539.16 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 77.0 MB in the end (delta: -36.2 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,234 INFO L168 Benchmark]: Witness Printer took 56.43 ms. Allocated memory is still 96.5 MB. Free memory was 77.0 MB in the beginning and 74.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:00:01,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 368.50 ms. Allocated memory is still 71.3 MB. Free memory was 51.9 MB in the beginning and 41.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.57 ms. Allocated memory is still 71.3 MB. Free memory was 41.1 MB in the beginning and 53.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.25 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 52.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 445.27 ms. Allocated memory is still 71.3 MB. Free memory was 52.1 MB in the beginning and 41.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2539.16 ms. Allocated memory was 71.3 MB in the beginning and 96.5 MB in the end (delta: 25.2 MB). Free memory was 40.8 MB in the beginning and 77.0 MB in the end (delta: -36.2 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. * Witness Printer took 56.43 ms. Allocated memory is still 96.5 MB. Free memory was 77.0 MB in the beginning and 74.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] rr * ptr1 = 0; [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; [L53] ptr1 = getPtr() [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L47] ptr -> state = 2 [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L8] reach_error() - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 19 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 16 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 incorrect! [2021-11-07 01:00:01,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d17ac75-9955-434c-b091-c92e3470fc9a/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE