./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE --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 ............................................................................................................................................ 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE --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 ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:30:38,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:30:39,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:30:39,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:30:39,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:30:39,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:30:39,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:30:39,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:30:39,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:30:39,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:30:39,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:30:39,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:30:39,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:30:39,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:30:39,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:30:39,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:30:39,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:30:39,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:30:39,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:30:39,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:30:39,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:30:39,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:30:39,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:30:39,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:30:39,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:30:39,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:30:39,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:30:39,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:30:39,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:30:39,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:30:39,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:30:39,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:30:39,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:30:39,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:30:39,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:30:39,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:30:39,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:30:39,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:30:39,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:30:39,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:30:39,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:30:39,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:30:39,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:30:39,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:30:39,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:30:39,171 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:30:39,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:30:39,172 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:30:39,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:30:39,172 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:30:39,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:30:39,178 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:30:39,179 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:30:39,180 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:30:39,180 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:30:39,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:30:39,180 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:30:39,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:30:39,181 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:30:39,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:30:39,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:30:39,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:30:39,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:30:39,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:30:39,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:30:39,183 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:30:39,183 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:30:39,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:30:39,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:30:39,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:30:39,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:30:39,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:30:39,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:30:39,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:30:39,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:30:39,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:30:39,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:30:39,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:30:39,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:30:39,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:30:39,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:30:39,187 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 [2021-10-24 10:30:39,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:30:39,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:30:39,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:30:39,546 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:30:39,547 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:30:39,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-10-24 10:30:39,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/5e5cd6e32/b400b403d5074763b3153b0bdbcea2c5/FLAG8d837b993 [2021-10-24 10:30:40,080 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:30:40,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i [2021-10-24 10:30:40,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/5e5cd6e32/b400b403d5074763b3153b0bdbcea2c5/FLAG8d837b993 [2021-10-24 10:30:40,483 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/5e5cd6e32/b400b403d5074763b3153b0bdbcea2c5 [2021-10-24 10:30:40,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:30:40,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:30:40,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:30:40,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:30:40,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:30:40,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:30:40" (1/1) ... [2021-10-24 10:30:40,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671e77c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:40, skipping insertion in model container [2021-10-24 10:30:40,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:30:40" (1/1) ... [2021-10-24 10:30:40,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:30:40,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:30:40,673 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-24 10:30:40,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:30:40,708 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) [2021-10-24 10:30:40,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dd0d871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:40, skipping insertion in model container [2021-10-24 10:30:40,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:30:40,709 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:30:40,711 INFO L168 Benchmark]: Toolchain (without parser) took 219.83 ms. Allocated memory is still 130.0 MB. Free memory was 93.5 MB in the beginning and 107.9 MB in the end (delta: -14.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:40,712 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 130.0 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:30:40,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.11 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 107.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:40,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 130.0 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 211.11 ms. Allocated memory is still 130.0 MB. Free memory was 93.4 MB in the beginning and 107.9 MB in the end (delta: -14.5 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:30:42,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:30:42,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:30:42,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:30:42,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:30:42,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:30:42,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:30:42,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:30:42,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:30:42,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:30:42,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:30:42,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:30:42,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:30:42,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:30:42,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:30:42,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:30:42,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:30:42,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:30:42,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:30:42,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:30:42,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:30:42,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:30:42,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:30:42,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:30:42,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:30:42,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:30:42,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:30:42,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:30:42,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:30:42,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:30:42,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:30:42,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:30:42,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:30:42,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:30:42,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:30:42,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:30:42,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:30:42,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:30:42,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:30:42,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:30:42,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:30:42,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:30:42,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:30:42,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:30:42,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:30:42,911 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:30:42,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:30:42,911 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:30:42,911 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:30:42,912 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:30:42,912 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:30:42,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:30:42,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:30:42,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:30:42,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:30:42,915 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:30:42,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:30:42,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:30:42,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:30:42,917 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:30:42,917 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:30:42,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:30:42,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:30:42,918 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:30:42,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:30:42,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:30:42,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:30:42,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:30:42,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:30:42,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:30:42,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:30:42,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:30:42,921 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:30:42,921 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:30:42,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:30:42,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:30:42,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:30:42,922 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 900cc87915f78d8f9b7a01f7b163a61da3f269083f153e9256c9ee6a33b8e554 [2021-10-24 10:30:43,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:30:43,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:30:43,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:30:43,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:30:43,302 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:30:43,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-10-24 10:30:43,370 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/367687a3a/f600837aa57f4c7181dc61b092ccd202/FLAG043ff777c [2021-10-24 10:30:43,907 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:30:43,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i [2021-10-24 10:30:43,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/367687a3a/f600837aa57f4c7181dc61b092ccd202/FLAG043ff777c [2021-10-24 10:30:44,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/data/367687a3a/f600837aa57f4c7181dc61b092ccd202 [2021-10-24 10:30:44,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:30:44,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:30:44,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:30:44,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:30:44,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:30:44,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1992261c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44, skipping insertion in model container [2021-10-24 10:30:44,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:30:44,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:30:44,510 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-24 10:30:44,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:30:44,538 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:30:44,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:30:44,546 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-24 10:30:44,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:30:44,555 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:30:44,567 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_2751bc5e-aab0-43b0-890d-c8b5efd6d414/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-24 10:30:44,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:30:44,587 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:30:44,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44 WrapperNode [2021-10-24 10:30:44,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:30:44,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:30:44,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:30:44,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:30:44,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:30:44,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:30:44,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:30:44,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:30:44,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:30:44,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:30:44,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:30:44,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:30:44,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (1/1) ... [2021-10-24 10:30:44,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:30:44,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:30:44,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:30:44,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:30:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:30:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:30:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 10:30:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 10:30:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:30:44,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:30:44,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 10:30:44,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:30:44,956 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-24 10:30:44,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:30:44 BoogieIcfgContainer [2021-10-24 10:30:44,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:30:44,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:30:44,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:30:44,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:30:44,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:30:44" (1/3) ... [2021-10-24 10:30:44,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc1f8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:30:44, skipping insertion in model container [2021-10-24 10:30:44,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:30:44" (2/3) ... [2021-10-24 10:30:44,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc1f8b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:30:44, skipping insertion in model container [2021-10-24 10:30:44,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:30:44" (3/3) ... [2021-10-24 10:30:44,968 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.i [2021-10-24 10:30:44,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:30:44,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-24 10:30:45,031 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:30:45,040 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 [2021-10-24 10:30:45,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-24 10:30:45,054 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) [2021-10-24 10:30:45,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:30:45,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:30:45,061 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:30:45,061 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:30:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:30:45,073 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2021-10-24 10:30:45,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:30:45,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117734310] [2021-10-24 10:30:45,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:30:45,092 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:30:45,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:30:45,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:30:45,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:30:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:30:45,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-24 10:30:45,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:30:45,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:30:45,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-24 10:30:45,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-24 10:30:45,408 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 [2021-10-24 10:30:45,560 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 10:30:45,560 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 [2021-10-24 10:30:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:30:45,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:30:45,663 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 [2021-10-24 10:30:46,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:30:46,190 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:30:46,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117734310] [2021-10-24 10:30:46,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117734310] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:30:46,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:30:46,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 6 [2021-10-24 10:30:46,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224467013] [2021-10-24 10:30:46,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:30:46,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:30:46,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:30:46,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:30:46,215 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) [2021-10-24 10:30:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:30:46,378 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-24 10:30:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:30:46,380 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 [2021-10-24 10:30:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:30:46,387 INFO L225 Difference]: With dead ends: 27 [2021-10-24 10:30:46,388 INFO L226 Difference]: Without dead ends: 10 [2021-10-24 10:30:46,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 152.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:30:46,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-24 10:30:46,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-24 10:30:46,415 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) [2021-10-24 10:30:46,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-10-24 10:30:46,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2021-10-24 10:30:46,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:30:46,417 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-10-24 10:30:46,418 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) [2021-10-24 10:30:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-10-24 10:30:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 10:30:46,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:30:46,419 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:30:46,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 10:30:46,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:30:46,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:30:46,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:30:46,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2021-10-24 10:30:46,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:30:46,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251812264] [2021-10-24 10:30:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:30:46,649 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:30:46,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:30:46,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:30:46,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:30:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:30:46,789 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:30:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:30:46,898 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:30:46,899 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:30:46,900 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:30:46,902 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:30:46,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:30:47,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:30:47,124 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:30:47,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:30:47 BoogieIcfgContainer [2021-10-24 10:30:47,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:30:47,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:30:47,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:30:47,164 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:30:47,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:30:44" (3/4) ... [2021-10-24 10:30:47,166 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:30:47,207 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:30:47,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:30:47,208 INFO L168 Benchmark]: Toolchain (without parser) took 2890.54 ms. Allocated memory was 50.3 MB in the beginning and 90.2 MB in the end (delta: 39.8 MB). Free memory was 27.0 MB in the beginning and 62.4 MB in the end (delta: -35.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,209 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:30:47,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.26 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 27.3 MB in the end (delta: -517.6 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 25.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,211 INFO L168 Benchmark]: Boogie Preprocessor took 23.65 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 24.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,212 INFO L168 Benchmark]: RCFGBuilder took 311.17 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 24.4 MB in the beginning and 43.9 MB in the end (delta: -19.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,213 INFO L168 Benchmark]: TraceAbstraction took 2202.31 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 64.5 MB in the end (delta: -21.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:30:47,213 INFO L168 Benchmark]: Witness Printer took 43.10 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 62.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:30:47,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.26 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 27.3 MB in the end (delta: -517.6 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 25.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.65 ms. Allocated memory is still 50.3 MB. Free memory was 25.7 MB in the beginning and 24.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 311.17 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 24.4 MB in the beginning and 43.9 MB in the end (delta: -19.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2202.31 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 64.5 MB in the end (delta: -21.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 43.10 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 62.4 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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: 2085.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 190.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 19 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 152.4ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.3ms SsaConstructionTime, 117.4ms SatisfiabilityAnalysisTime, 947.2ms 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! [2021-10-24 10:30:47,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2751bc5e-aab0-43b0-890d-c8b5efd6d414/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...