./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f26903d601d84bcfe738256ba3a8dbce35e2085 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_add-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f26903d601d84bcfe738256ba3a8dbce35e2085 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 13:01:40,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:01:40,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:01:40,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:01:40,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:01:40,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:01:40,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:01:40,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:01:40,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:01:40,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:01:40,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:01:40,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:01:40,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:01:40,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:01:40,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:01:40,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:01:40,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:01:40,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:01:40,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:01:40,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:01:40,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:01:40,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:01:40,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:01:40,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:01:40,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:01:40,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:01:40,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:01:40,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:01:40,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:01:40,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:01:40,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:01:40,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:01:40,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:01:40,161 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:01:40,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:01:40,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:01:40,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:01:40,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:01:40,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:01:40,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:01:40,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:01:40,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:01:40,174 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:01:40,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:01:40,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:01:40,175 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:01:40,175 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:01:40,175 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:01:40,175 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:01:40,175 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:01:40,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:01:40,176 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:01:40,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:01:40,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:01:40,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:01:40,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:01:40,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:01:40,179 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan 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(__VERIFIER_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 -> 0f26903d601d84bcfe738256ba3a8dbce35e2085 [2019-12-07 13:01:40,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:01:40,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:01:40,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:01:40,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:01:40,292 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:01:40,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2019-12-07 13:01:40,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/9380bd24e/69e3c3eab4a7423fa7cce98875908af8/FLAG13b2e4e3f [2019-12-07 13:01:40,776 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:01:40,777 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/sv-benchmarks/c/ldv-sets/test_add-1.i [2019-12-07 13:01:40,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/9380bd24e/69e3c3eab4a7423fa7cce98875908af8/FLAG13b2e4e3f [2019-12-07 13:01:40,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/9380bd24e/69e3c3eab4a7423fa7cce98875908af8 [2019-12-07 13:01:40,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:01:40,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:01:40,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:01:40,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:01:40,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:01:40,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:01:40" (1/1) ... [2019-12-07 13:01:40,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3437c0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:40, skipping insertion in model container [2019-12-07 13:01:40,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:01:40" (1/1) ... [2019-12-07 13:01:40,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:01:40,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:01:41,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:01:41,085 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) [2019-12-07 13:01:41,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e5abc20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:41, skipping insertion in model container [2019-12-07 13:01:41,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:01:41,085 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:01:41,087 INFO L168 Benchmark]: Toolchain (without parser) took 289.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:01:41,088 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:01:41,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:01:41,089 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 621]: 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 0.1.25-f470102 [2019-12-07 13:01:42,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:01:42,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:01:42,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:01:42,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:01:42,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:01:42,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:01:42,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:01:42,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:01:42,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:01:42,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:01:42,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:01:42,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:01:42,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:01:42,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:01:42,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:01:42,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:01:42,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:01:42,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:01:42,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:01:42,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:01:42,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:01:42,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:01:42,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:01:42,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:01:42,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:01:42,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:01:42,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:01:42,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:01:42,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:01:42,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:01:42,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:01:42,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:01:42,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:01:42,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:01:42,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:01:42,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:01:42,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:01:42,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:01:42,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:01:42,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:01:42,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:01:42,276 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:01:42,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:01:42,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:01:42,277 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:01:42,277 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:01:42,277 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:01:42,277 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:01:42,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:01:42,277 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:01:42,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:01:42,278 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:01:42,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:01:42,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:01:42,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:01:42,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:01:42,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:01:42,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:01:42,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:01:42,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:01:42,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:01:42,282 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan 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(__VERIFIER_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 -> 0f26903d601d84bcfe738256ba3a8dbce35e2085 [2019-12-07 13:01:42,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:01:42,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:01:42,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:01:42,471 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:01:42,471 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:01:42,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/../../sv-benchmarks/c/ldv-sets/test_add-1.i [2019-12-07 13:01:42,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/ae5720459/acb240fbc80a48eb9a441e9c895d6966/FLAG94c29a93d [2019-12-07 13:01:42,924 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:01:42,924 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/sv-benchmarks/c/ldv-sets/test_add-1.i [2019-12-07 13:01:42,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/ae5720459/acb240fbc80a48eb9a441e9c895d6966/FLAG94c29a93d [2019-12-07 13:01:43,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/data/ae5720459/acb240fbc80a48eb9a441e9c895d6966 [2019-12-07 13:01:43,310 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:01:43,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:01:43,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:01:43,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:01:43,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:01:43,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d316f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43, skipping insertion in model container [2019-12-07 13:01:43,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:01:43,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:01:43,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:01:43,582 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:01:43,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:01:43,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:01:43,618 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:01:43,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:01:43,687 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:01:43,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43 WrapperNode [2019-12-07 13:01:43,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:01:43,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:01:43,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:01:43,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:01:43,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:01:43,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:01:43,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:01:43,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:01:43,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... [2019-12-07 13:01:43,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:01:43,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:01:43,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:01:43,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:01:43,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:01:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:01:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 13:01:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 13:01:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:01:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 13:01:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:01:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-12-07 13:01:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:01:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:01:44,095 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:01:44,095 INFO L287 CfgBuilder]: Removed 20 assume(true) statements. [2019-12-07 13:01:44,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:01:44 BoogieIcfgContainer [2019-12-07 13:01:44,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:01:44,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:01:44,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:01:44,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:01:44,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:01:43" (1/3) ... [2019-12-07 13:01:44,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8631422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:01:44, skipping insertion in model container [2019-12-07 13:01:44,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:01:43" (2/3) ... [2019-12-07 13:01:44,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8631422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:01:44, skipping insertion in model container [2019-12-07 13:01:44,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:01:44" (3/3) ... [2019-12-07 13:01:44,101 INFO L109 eAbstractionObserver]: Analyzing ICFG test_add-1.i [2019-12-07 13:01:44,107 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:01:44,112 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:01:44,119 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:01:44,133 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:01:44,133 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:01:44,134 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:01:44,134 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:01:44,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:01:44,134 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:01:44,134 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:01:44,134 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:01:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-12-07 13:01:44,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 13:01:44,146 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:01:44,146 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:01:44,147 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:01:44,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:01:44,150 INFO L82 PathProgramCache]: Analyzing trace with hash -923442845, now seen corresponding path program 1 times [2019-12-07 13:01:44,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:01:44,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756754466] [2019-12-07 13:01:44,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:01:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:01:44,229 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:01:44,232 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:01:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:44,241 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:01:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:44,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756754466] [2019-12-07 13:01:44,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:01:44,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:01:44,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500086776] [2019-12-07 13:01:44,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:01:44,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:01:44,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:01:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:01:44,260 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-12-07 13:01:44,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:01:44,271 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-12-07 13:01:44,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:01:44,272 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 13:01:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:01:44,279 INFO L225 Difference]: With dead ends: 41 [2019-12-07 13:01:44,279 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 13:01:44,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:01:44,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 13:01:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 13:01:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 13:01:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-12-07 13:01:44,304 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2019-12-07 13:01:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:01:44,304 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 13:01:44,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:01:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-12-07 13:01:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 13:01:44,305 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:01:44,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:01:44,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:01:44,506 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:01:44,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:01:44,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1228046979, now seen corresponding path program 1 times [2019-12-07 13:01:44,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:01:44,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [405185388] [2019-12-07 13:01:44,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:01:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:01:44,699 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:01:44,701 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:01:44,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:44,732 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:01:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:44,736 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [405185388] [2019-12-07 13:01:44,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:01:44,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 13:01:44,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878180051] [2019-12-07 13:01:44,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:01:44,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:01:44,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:01:44,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:01:44,740 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 4 states. [2019-12-07 13:01:44,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:01:44,787 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2019-12-07 13:01:44,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:01:44,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 13:01:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:01:44,788 INFO L225 Difference]: With dead ends: 37 [2019-12-07 13:01:44,788 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 13:01:44,789 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:01:44,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 13:01:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-12-07 13:01:44,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 13:01:44,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-12-07 13:01:44,792 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 12 [2019-12-07 13:01:44,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:01:44,793 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-12-07 13:01:44,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:01:44,793 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-12-07 13:01:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 13:01:44,793 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:01:44,793 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:01:44,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:01:44,994 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:01:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:01:44,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1885213511, now seen corresponding path program 1 times [2019-12-07 13:01:44,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:01:44,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117797750] [2019-12-07 13:01:44,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:01:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:01:45,084 INFO L264 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 13:01:45,085 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:01:45,134 INFO L377 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 15 treesize of output 7 [2019-12-07 13:01:45,134 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:45,145 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:45,148 INFO L377 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 [2019-12-07 13:01:45,149 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:45,155 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:45,155 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:01:45,155 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:10 [2019-12-07 13:01:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:45,167 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:01:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:45,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117797750] [2019-12-07 13:01:45,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:01:45,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 13:01:45,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726130497] [2019-12-07 13:01:45,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:01:45,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:01:45,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:01:45,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:01:45,206 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states. [2019-12-07 13:01:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:01:47,271 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2019-12-07 13:01:47,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:01:47,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-12-07 13:01:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:01:47,273 INFO L225 Difference]: With dead ends: 40 [2019-12-07 13:01:47,273 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 13:01:47,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:01:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 13:01:47,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2019-12-07 13:01:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 13:01:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-12-07 13:01:47,276 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2019-12-07 13:01:47,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:01:47,276 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-12-07 13:01:47,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:01:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-12-07 13:01:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:01:47,277 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:01:47,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:01:47,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:01:47,479 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:01:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:01:47,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2054053118, now seen corresponding path program 1 times [2019-12-07 13:01:47,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:01:47,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741842570] [2019-12-07 13:01:47,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 13:01:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:01:47,610 INFO L264 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 29 conjunts are in the unsatisfiable core [2019-12-07 13:01:47,612 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:01:47,628 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:47,629 INFO L377 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 1 case distinctions, treesize of input 9 treesize of output 25 [2019-12-07 13:01:47,629 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:47,642 INFO L614 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-12-07 13:01:47,642 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:01:47,643 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:15 [2019-12-07 13:01:47,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:47,685 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:47,685 INFO L377 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 13 treesize of output 17 [2019-12-07 13:01:47,686 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:47,706 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:47,706 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 18 treesize of output 36 [2019-12-07 13:01:47,707 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:47,730 INFO L614 ElimStorePlain]: treesize reduction 19, result has 36.7 percent of original size [2019-12-07 13:01:47,730 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:01:47,731 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:47, output treesize:11 [2019-12-07 13:01:57,979 WARN L192 SmtUtils]: Spent 10.23 s on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2019-12-07 13:01:57,980 INFO L343 Elim1Store]: treesize reduction 84, result has 46.8 percent of original size [2019-12-07 13:01:57,980 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 77 treesize of output 90 [2019-12-07 13:01:57,981 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:58,054 INFO L614 ElimStorePlain]: treesize reduction 45, result has 52.1 percent of original size [2019-12-07 13:01:58,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,056 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-12-07 13:01:58,057 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:82, output treesize:67 [2019-12-07 13:01:58,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,122 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 13:01:58,168 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:58,168 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 43 [2019-12-07 13:01:58,169 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:58,332 WARN L192 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-12-07 13:01:58,333 INFO L343 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2019-12-07 13:01:58,333 INFO L377 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 50 treesize of output 90 [2019-12-07 13:01:58,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 13:01:58,334 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 13:01:58,336 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 13:01:58,336 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 13:01:58,336 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:95, output treesize:4 [2019-12-07 13:01:58,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:58,349 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:01:58,376 INFO L377 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 742 treesize of output 734 [2019-12-07 13:01:58,379 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-12-07 13:01:58,884 WARN L192 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 37 [2019-12-07 13:01:58,885 INFO L614 ElimStorePlain]: treesize reduction 647, result has 10.4 percent of original size [2019-12-07 13:01:58,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 13:01:58,889 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-12-07 13:01:58,889 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:82, output treesize:11 [2019-12-07 13:01:58,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-12-07 13:01:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:01:59,012 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741842570] [2019-12-07 13:01:59,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:01:59,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-12-07 13:01:59,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688524805] [2019-12-07 13:01:59,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:01:59,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:01:59,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:01:59,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:01:59,014 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 10 states. [2019-12-07 13:01:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:01:59,492 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-12-07 13:01:59,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:01:59,494 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2019-12-07 13:01:59,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:01:59,494 INFO L225 Difference]: With dead ends: 29 [2019-12-07 13:01:59,494 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 13:01:59,495 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:01:59,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 13:01:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-12-07 13:01:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 13:01:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-12-07 13:01:59,498 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2019-12-07 13:01:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:01:59,498 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-12-07 13:01:59,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:01:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-12-07 13:01:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 13:01:59,499 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:01:59,499 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:01:59,699 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:01:59,700 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:01:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:01:59,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2055661832, now seen corresponding path program 1 times [2019-12-07 13:01:59,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:01:59,702 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868568249] [2019-12-07 13:01:59,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 13:01:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:01:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:01:59,999 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 13:01:59,999 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:02:00,199 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:02:00,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:02:00 BoogieIcfgContainer [2019-12-07 13:02:00,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:02:00,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:02:00,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:02:00,232 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:02:00,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:01:44" (3/4) ... [2019-12-07 13:02:00,233 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:02:00,267 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7e48ad85-4b14-4194-841a-cb438d99d4cd/bin/utaipan/witness.graphml [2019-12-07 13:02:00,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:02:00,268 INFO L168 Benchmark]: Toolchain (without parser) took 16957.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.0 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:02:00,268 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:02:00,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:02:00,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:02:00,269 INFO L168 Benchmark]: Boogie Preprocessor took 24.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:02:00,269 INFO L168 Benchmark]: RCFGBuilder took 348.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:02:00,270 INFO L168 Benchmark]: TraceAbstraction took 16134.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:02:00,270 INFO L168 Benchmark]: Witness Printer took 35.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:02:00,271 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 348.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16134.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 35.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 653]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L648] struct ldv_list_head s1 = { &(s1), &(s1) }; VAL [s1={3:0}] [L651] int j = __VERIFIER_nondet_int(); [L637] struct ldv_list_element *m; [L638] EXPR (s)->next [L638] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L638] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={3:0}] [L638] COND FALSE !(&m->list != (s)) VAL [s1={3:0}] [L643] return 0; VAL [s1={3:0}] [L619] COND TRUE !ldv_is_in_set(new, s) [L620] struct ldv_list_element *le; [L562] void *ptr = malloc(size); [L564] return ptr; VAL [s1={3:0}] [L621] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L622] le->e = new [L591] head->next [L579] next->prev = new [L580] new->next = next [L581] new->prev = prev [L582] prev->next = new VAL [s1={3:0}] [L637] struct ldv_list_element *m; [L638] EXPR (s)->next [L638] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L638] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [s1={3:0}] [L638] COND TRUE &m->list != (s) [L639] EXPR m->e VAL [s1={3:0}] [L639] COND TRUE m->e == e [L640] return 1; VAL [s1={3:0}] [L653] COND TRUE ldv_is_in_set(j, &s1) [L653] __VERIFIER_error() VAL [s1={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Result: UNSAFE, OverallTime: 16.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 75 SDtfs, 115 SDslu, 83 SDs, 0 SdLazy, 48 SolverSat, 10 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 92 ConstructedInterpolants, 6 QuantifiedInterpolants, 6737 SizeOfPredicates, 48 NumberOfNonLiveVariables, 261 ConjunctsInSsa, 49 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...