./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_add-1.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_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/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_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/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_4269eaea-5b23-46ef-81b2-f3713e38e50b/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 ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 ............................................................................................................................................ 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/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_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/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_4269eaea-5b23-46ef-81b2-f3713e38e50b/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 ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 11:17:30,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:17:30,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:17:30,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:17:30,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:17:30,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:17:30,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:17:30,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:17:30,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:17:30,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:17:30,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:17:30,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:17:30,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:17:30,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:17:30,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:17:30,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:17:30,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:17:30,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:17:30,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:17:30,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:17:30,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:17:30,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:17:30,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:17:30,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:17:30,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:17:30,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:17:30,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:17:30,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:17:30,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:17:30,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:17:30,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:17:30,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:17:30,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:17:30,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:17:30,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:17:30,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:17:30,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:17:30,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:17:30,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:17:30,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:17:30,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:17:30,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:17:30,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:17:30,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:17:30,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:17:30,819 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:17:30,819 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:17:30,819 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:17:30,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:17:30,820 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:17:30,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:17:30,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:17:30,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:17:30,821 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:17:30,822 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:17:30,822 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:17:30,822 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:17:30,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:17:30,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:17:30,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:17:30,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:17:30,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:17:30,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:17:30,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:17:30,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:17:30,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:17:30,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:17:30,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:17:30,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:17:30,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:17:30,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:17:30,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:17:30,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:17:30,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:17:30,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:17:30,834 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:17:30,834 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:17:30,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:17:30,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:17:30,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:17:30,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:17:30,835 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 [2021-10-24 11:17:31,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:17:31,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:17:31,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:17:31,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:17:31,239 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:17:31,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-24 11:17:31,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/f7ed9cbf7/7e9678276ee44b7da61b7bd3c84265d9/FLAG8693dda6a [2021-10-24 11:17:32,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:17:32,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-24 11:17:32,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/f7ed9cbf7/7e9678276ee44b7da61b7bd3c84265d9/FLAG8693dda6a [2021-10-24 11:17:32,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/f7ed9cbf7/7e9678276ee44b7da61b7bd3c84265d9 [2021-10-24 11:17:32,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:17:32,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:17:32,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:17:32,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:17:32,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:17:32,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:32" (1/1) ... [2021-10-24 11:17:32,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd5240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:32, skipping insertion in model container [2021-10-24 11:17:32,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:32" (1/1) ... [2021-10-24 11:17:32,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:17:32,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:17:32,994 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-24 11:17:33,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:17:33,018 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 11:17:33,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56b53395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:33, skipping insertion in model container [2021-10-24 11:17:33,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:17:33,021 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:17:33,024 INFO L168 Benchmark]: Toolchain (without parser) took 695.90 ms. Allocated memory is still 104.9 MB. Free memory was 72.1 MB in the beginning and 77.5 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:33,026 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:17:33,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.33 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 77.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:33,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 104.9 MB. Free memory is still 60.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.33 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 77.5 MB in the end (delta: -5.7 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: 635]: 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 11:17:35,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:17:35,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:17:35,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:17:35,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:17:35,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:17:35,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:17:35,949 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:17:35,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:17:35,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:17:35,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:17:35,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:17:35,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:17:35,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:17:35,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:17:35,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:17:35,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:17:35,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:17:35,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:17:35,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:17:35,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:17:35,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:17:35,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:17:35,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:17:36,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:17:36,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:17:36,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:17:36,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:17:36,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:17:36,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:17:36,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:17:36,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:17:36,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:17:36,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:17:36,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:17:36,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:17:36,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:17:36,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:17:36,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:17:36,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:17:36,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:17:36,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:17:36,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:17:36,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:17:36,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:17:36,088 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:17:36,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:17:36,088 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:17:36,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:17:36,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:17:36,089 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:17:36,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:17:36,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:17:36,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:17:36,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:17:36,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:17:36,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:17:36,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:17:36,093 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:17:36,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:17:36,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:17:36,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:17:36,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:17:36,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:17:36,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:17:36,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:17:36,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:17:36,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:17:36,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:17:36,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:17:36,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:17:36,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:17:36,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:17:36,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:17:36,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:17:36,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:17:36,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:17:36,098 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed7fc1ee8e8624c54bbfaff1033820d20aa5fb88ac8eae06fb8e7107f72c3762 [2021-10-24 11:17:36,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:17:36,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:17:36,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:17:36,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:17:36,569 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:17:36,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-24 11:17:36,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/bf9ae67d7/c90e9aebc70546cb9459db7da3550d1c/FLAGb568f3847 [2021-10-24 11:17:37,246 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:17:37,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i [2021-10-24 11:17:37,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/bf9ae67d7/c90e9aebc70546cb9459db7da3550d1c/FLAGb568f3847 [2021-10-24 11:17:37,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/data/bf9ae67d7/c90e9aebc70546cb9459db7da3550d1c [2021-10-24 11:17:37,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:17:37,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:17:37,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:17:37,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:17:37,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:17:37,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:37" (1/1) ... [2021-10-24 11:17:37,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f46f7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:37, skipping insertion in model container [2021-10-24 11:17:37,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:37" (1/1) ... [2021-10-24 11:17:37,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:17:37,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:17:38,115 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-24 11:17:38,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:17:38,157 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:17:38,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:17:38,239 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-24 11:17:38,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:17:38,246 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:17:38,301 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_4269eaea-5b23-46ef-81b2-f3713e38e50b/sv-benchmarks/c/ldv-sets/test_add-1.i[25792,25805] [2021-10-24 11:17:38,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:17:38,366 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:17:38,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38 WrapperNode [2021-10-24 11:17:38,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:17:38,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:17:38,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:17:38,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:17:38,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:17:38,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:17:38,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:17:38,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:17:38,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:17:38,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:17:38,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:17:38,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:17:38,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (1/1) ... [2021-10-24 11:17:38,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:17:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:17:38,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:17:38,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:17:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 11:17:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-24 11:17:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-24 11:17:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:17:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-24 11:17:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 11:17:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-24 11:17:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:17:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:17:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:17:39,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:17:39,428 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 11:17:39,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:39 BoogieIcfgContainer [2021-10-24 11:17:39,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:17:39,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:17:39,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:17:39,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:17:39,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:17:37" (1/3) ... [2021-10-24 11:17:39,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428829de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:39, skipping insertion in model container [2021-10-24 11:17:39,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:38" (2/3) ... [2021-10-24 11:17:39,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428829de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:39, skipping insertion in model container [2021-10-24 11:17:39,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:39" (3/3) ... [2021-10-24 11:17:39,441 INFO L111 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2021-10-24 11:17:39,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:17:39,448 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:17:39,530 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:17:39,539 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 11:17:39,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:17:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 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 11:17:39,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:17:39,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:17:39,578 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:17:39,580 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:17:39,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:17:39,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1191041087, now seen corresponding path program 1 times [2021-10-24 11:17:39,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:17:39,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455148638] [2021-10-24 11:17:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:17:39,606 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:17:39,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:17:39,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:17:39,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:17:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:17:39,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:17:39,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:17:39,859 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 11:17:39,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:17:39,933 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 11:17:39,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:17:39,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455148638] [2021-10-24 11:17:39,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455148638] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:17:39,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:17:39,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:17:39,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072574902] [2021-10-24 11:17:39,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:17:39,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:17:39,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:17:39,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:17:39,965 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.434782608695652) internal successors, (33), 24 states have internal predecessors, (33), 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 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 11:17:39,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:17:39,986 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2021-10-24 11:17:39,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:17:39,988 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2021-10-24 11:17:39,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:17:39,997 INFO L225 Difference]: With dead ends: 45 [2021-10-24 11:17:39,997 INFO L226 Difference]: Without dead ends: 21 [2021-10-24 11:17:40,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:17:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-24 11:17:40,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-24 11:17:40,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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 11:17:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2021-10-24 11:17:40,042 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2021-10-24 11:17:40,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:17:40,043 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-24 11:17:40,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 11:17:40,044 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2021-10-24 11:17:40,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:17:40,045 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:17:40,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:17:40,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:17:40,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:17:40,261 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:17:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:17:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash -942277654, now seen corresponding path program 1 times [2021-10-24 11:17:40,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:17:40,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100278855] [2021-10-24 11:17:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:17:40,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:17:40,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:17:40,283 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:17:40,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:17:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:17:40,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 11:17:40,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:17:40,482 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 11:17:40,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:17:40,535 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 11:17:40,536 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:17:40,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100278855] [2021-10-24 11:17:40,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2100278855] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:17:40,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:17:40,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 11:17:40,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051226814] [2021-10-24 11:17:40,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:17:40,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:17:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:17:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:17:40,540 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 11:17:40,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:17:40,646 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2021-10-24 11:17:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:17:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2021-10-24 11:17:40,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:17:40,649 INFO L225 Difference]: With dead ends: 41 [2021-10-24 11:17:40,649 INFO L226 Difference]: Without dead ends: 32 [2021-10-24 11:17:40,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 11:17:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-24 11:17:40,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-24 11:17:40,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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 11:17:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-10-24 11:17:40,656 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-10-24 11:17:40,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:17:40,657 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-24 11:17:40,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 11:17:40,657 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-24 11:17:40,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:17:40,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:17:40,658 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:17:40,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:17:40,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:17:40,883 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:17:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:17:40,884 INFO L82 PathProgramCache]: Analyzing trace with hash 239429152, now seen corresponding path program 1 times [2021-10-24 11:17:40,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:17:40,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095291138] [2021-10-24 11:17:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:17:40,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:17:40,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:17:40,890 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:17:40,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:17:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:17:41,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-24 11:17:41,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:17:41,252 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:17:41,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-10-24 11:17:41,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-10-24 11:17:41,374 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 11:17:41,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:17:41,520 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 11:17:41,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:17:41,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095291138] [2021-10-24 11:17:41,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095291138] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:17:41,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:17:41,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 11:17:41,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706407793] [2021-10-24 11:17:41,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 11:17:41,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:17:41,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 11:17:41,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 11:17:41,533 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 11:17:42,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:17:42,915 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2021-10-24 11:17:42,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 11:17:42,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 12 [2021-10-24 11:17:42,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:17:42,918 INFO L225 Difference]: With dead ends: 44 [2021-10-24 11:17:42,918 INFO L226 Difference]: Without dead ends: 23 [2021-10-24 11:17:42,919 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 110.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 11:17:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-24 11:17:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2021-10-24 11:17:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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 11:17:42,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-24 11:17:42,924 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 12 [2021-10-24 11:17:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:17:42,925 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-24 11:17:42,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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 11:17:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-24 11:17:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:17:42,926 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:17:42,926 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:17:42,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-24 11:17:43,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:17:43,140 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:17:43,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:17:43,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1232200096, now seen corresponding path program 1 times [2021-10-24 11:17:43,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:17:43,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977762953] [2021-10-24 11:17:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:17:43,142 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:17:43,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:17:43,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:17:43,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:17:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:17:43,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-24 11:17:43,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:17:43,419 INFO L354 Elim1Store]: treesize reduction 78, result has 28.4 percent of original size [2021-10-24 11:17:43,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 36 [2021-10-24 11:17:43,782 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-24 11:17:43,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-10-24 11:17:47,448 INFO L354 Elim1Store]: treesize reduction 193, result has 15.0 percent of original size [2021-10-24 11:17:47,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 45 [2021-10-24 11:17:47,798 INFO L354 Elim1Store]: treesize reduction 54, result has 33.3 percent of original size [2021-10-24 11:17:47,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 50 [2021-10-24 11:17:47,912 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 11:17:47,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:17:48,025 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 12818 treesize of output 12690 [2021-10-24 11:17:52,508 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 11:17:52,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:17:52,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977762953] [2021-10-24 11:17:52,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977762953] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:17:52,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:17:52,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-10-24 11:17:52,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257054712] [2021-10-24 11:17:52,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 11:17:52,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:17:52,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 11:17:52,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-24 11:17:52,512 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 11:17:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:17:53,215 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-24 11:17:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 11:17:53,218 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 16 [2021-10-24 11:17:53,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:17:53,218 INFO L225 Difference]: With dead ends: 31 [2021-10-24 11:17:53,219 INFO L226 Difference]: Without dead ends: 26 [2021-10-24 11:17:53,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 416.3ms TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-24 11:17:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-24 11:17:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2021-10-24 11:17:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 11:17:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-10-24 11:17:53,229 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 16 [2021-10-24 11:17:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:17:53,230 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-10-24 11:17:53,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 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 11:17:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-24 11:17:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 11:17:53,232 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:17:53,232 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:17:53,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:17:53,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:17:53,439 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:17:53,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:17:53,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1233808810, now seen corresponding path program 1 times [2021-10-24 11:17:53,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:17:53,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741004028] [2021-10-24 11:17:53,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:17:53,442 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:17:53,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:17:53,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:17:53,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:17:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:17:53,739 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:17:53,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:17:53,930 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 11:17:53,930 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:17:53,932 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:17:53,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:17:54,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:17:54,162 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:17:54,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:17:54 BoogieIcfgContainer [2021-10-24 11:17:54,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:17:54,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:17:54,215 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:17:54,215 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:17:54,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:39" (3/4) ... [2021-10-24 11:17:54,218 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 11:17:54,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:17:54,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:17:54,306 INFO L168 Benchmark]: Toolchain (without parser) took 16764.21 ms. Allocated memory was 56.6 MB in the beginning and 176.2 MB in the end (delta: 119.5 MB). Free memory was 32.9 MB in the beginning and 66.8 MB in the end (delta: -33.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,307 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:17:54,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.51 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.7 MB in the beginning and 40.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.56 ms. Allocated memory is still 71.3 MB. Free memory was 39.8 MB in the beginning and 37.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,311 INFO L168 Benchmark]: Boogie Preprocessor took 86.58 ms. Allocated memory is still 71.3 MB. Free memory was 37.6 MB in the beginning and 53.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,312 INFO L168 Benchmark]: RCFGBuilder took 907.14 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 37.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,313 INFO L168 Benchmark]: TraceAbstraction took 14781.47 ms. Allocated memory was 71.3 MB in the beginning and 176.2 MB in the end (delta: 104.9 MB). Free memory was 37.5 MB in the beginning and 70.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,313 INFO L168 Benchmark]: Witness Printer took 90.75 ms. Allocated memory is still 176.2 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:17:54,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 820.51 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 32.7 MB in the beginning and 40.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.56 ms. Allocated memory is still 71.3 MB. Free memory was 39.8 MB in the beginning and 37.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.58 ms. Allocated memory is still 71.3 MB. Free memory was 37.6 MB in the beginning and 53.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 907.14 ms. Allocated memory is still 71.3 MB. Free memory was 53.3 MB in the beginning and 37.8 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14781.47 ms. Allocated memory was 71.3 MB in the beginning and 176.2 MB in the end (delta: 104.9 MB). Free memory was 37.5 MB in the beginning and 70.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 16.1 GB. * Witness Printer took 90.75 ms. Allocated memory is still 176.2 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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: 667]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L662] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={-2147483648:0}] [L665] int j = __VERIFIER_nondet_int(); [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND FALSE !(&m->list != (s)) VAL [s1={-2147483648:0}] [L657] return 0; VAL [s1={-2147483648:0}] [L633] COND TRUE !ldv_is_in_set(new, s) [L634] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [s1={-2147483648:0}] [L578] return ptr; VAL [s1={-2147483648:0}] [L635] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L636] le->e = new [L605] head->next [L593] next->prev = new [L594] new->next = next [L595] new->prev = prev [L596] prev->next = new VAL [s1={-2147483648:0}] [L651] struct ldv_list_element *m; [L652] EXPR (s)->next [L652] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L652] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={-2147483648:0}] [L652] COND TRUE &m->list != (s) [L653] EXPR m->e VAL [s1={-2147483648:0}] [L653] COND TRUE m->e == e [L654] return 1; VAL [s1={-2147483648:0}] [L667] COND TRUE ldv_is_in_set(j, &s1) [L667] reach_error() VAL [s1={-2147483648:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14632.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 29.0ms, AutomataDifference: 2268.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 82 SDtfs, 132 SDslu, 88 SDs, 0 SdLazy, 54 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1866.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 557.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 45.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.4ms SsaConstructionTime, 377.8ms SatisfiabilityAnalysisTime, 9995.0ms InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 6 QuantifiedInterpolants, 514 SizeOfPredicates, 48 NumberOfNonLiveVariables, 302 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 11:17:54,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4269eaea-5b23-46ef-81b2-f3713e38e50b/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...