./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 4dd574cd450f66ad0a509d55de13eff19153a3c0 ...................................................................................................................................... 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_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 4dd574cd450f66ad0a509d55de13eff19153a3c0 ............................................................................................................................................................................................................................................................................................................................... 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 20:05:41,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:05:41,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:05:41,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:05:41,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:05:41,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:05:41,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:05:41,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:05:41,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:05:41,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:05:41,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:05:41,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:05:41,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:05:41,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:05:41,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:05:41,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:05:41,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:05:41,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:05:41,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:05:41,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:05:41,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:05:41,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:05:41,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:05:41,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:05:41,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:05:41,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:05:41,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:05:41,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:05:41,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:05:41,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:05:41,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:05:41,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:05:41,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:05:41,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:05:41,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:05:41,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:05:41,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:05:41,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:05:41,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:05:41,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:05:41,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:05:41,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:05:41,593 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:05:41,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:05:41,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:05:41,594 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:05:41,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:05:41,594 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:05:41,595 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:05:41,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:05:41,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:05:41,596 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:05:41,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:05:41,596 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:05:41,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:05:41,597 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:05:41,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:05:41,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:05:41,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:05:41,599 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:05:41,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:05:41,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:05:41,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:05:41,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:05:41,599 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_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 -> 4dd574cd450f66ad0a509d55de13eff19153a3c0 [2019-12-07 20:05:41,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:05:41,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:05:41,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:05:41,719 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:05:41,720 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:05:41,720 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/../../sv-benchmarks/c/ldv-regression/1_3.i [2019-12-07 20:05:41,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/f278043e7/e85585d3f49b46c2accde5997b4f1bf6/FLAG598232669 [2019-12-07 20:05:42,090 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:05:42,090 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/sv-benchmarks/c/ldv-regression/1_3.i [2019-12-07 20:05:42,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/f278043e7/e85585d3f49b46c2accde5997b4f1bf6/FLAG598232669 [2019-12-07 20:05:42,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/f278043e7/e85585d3f49b46c2accde5997b4f1bf6 [2019-12-07 20:05:42,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:05:42,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:05:42,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:05:42,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:05:42,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:05:42,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:05:42" (1/1) ... [2019-12-07 20:05:42,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c3175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:42, skipping insertion in model container [2019-12-07 20:05:42,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:05:42" (1/1) ... [2019-12-07 20:05:42,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:05:42,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:05:42,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:05:42,286 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 20:05:42,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54744357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:42, skipping insertion in model container [2019-12-07 20:05:42,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:05:42,287 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:05:42,289 INFO L168 Benchmark]: Toolchain (without parser) took 181.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:42,290 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:05:42,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:42,292 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 30]: 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 20:05:43,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:05:43,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:05:43,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:05:43,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:05:43,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:05:43,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:05:43,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:05:43,442 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:05:43,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:05:43,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:05:43,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:05:43,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:05:43,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:05:43,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:05:43,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:05:43,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:05:43,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:05:43,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:05:43,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:05:43,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:05:43,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:05:43,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:05:43,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:05:43,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:05:43,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:05:43,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:05:43,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:05:43,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:05:43,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:05:43,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:05:43,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:05:43,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:05:43,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:05:43,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:05:43,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:05:43,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:05:43,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:05:43,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:05:43,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:05:43,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:05:43,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:05:43,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:05:43,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:05:43,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:05:43,474 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:05:43,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:05:43,474 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:05:43,474 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:05:43,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:05:43,475 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:05:43,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:05:43,475 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:05:43,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:05:43,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:05:43,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:05:43,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:05:43,478 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:05:43,479 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:05:43,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:05:43,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:05:43,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:05:43,479 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_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 -> 4dd574cd450f66ad0a509d55de13eff19153a3c0 [2019-12-07 20:05:43,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:05:43,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:05:43,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:05:43,659 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:05:43,659 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:05:43,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/../../sv-benchmarks/c/ldv-regression/1_3.i [2019-12-07 20:05:43,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/61de57ae7/ce147448f09a4cd0b149ebb74d9cce65/FLAGd49aeea8f [2019-12-07 20:05:44,071 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:05:44,071 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/sv-benchmarks/c/ldv-regression/1_3.i [2019-12-07 20:05:44,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/61de57ae7/ce147448f09a4cd0b149ebb74d9cce65/FLAGd49aeea8f [2019-12-07 20:05:44,085 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/data/61de57ae7/ce147448f09a4cd0b149ebb74d9cce65 [2019-12-07 20:05:44,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:05:44,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:05:44,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:05:44,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:05:44,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:05:44,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445e3d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44, skipping insertion in model container [2019-12-07 20:05:44,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:05:44,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:05:44,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:05:44,234 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:05:44,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:05:44,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:05:44,245 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:05:44,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:05:44,269 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:05:44,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44 WrapperNode [2019-12-07 20:05:44,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:05:44,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:05:44,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:05:44,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:05:44,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:05:44,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:05:44,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:05:44,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:05:44,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... [2019-12-07 20:05:44,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:05:44,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:05:44,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:05:44,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:05:44,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 20:05:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 20:05:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:05:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:05:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:05:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:05:44,519 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:05:44,520 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 20:05:44,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:05:44 BoogieIcfgContainer [2019-12-07 20:05:44,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:05:44,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:05:44,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:05:44,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:05:44,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:05:44" (1/3) ... [2019-12-07 20:05:44,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685d08e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:05:44, skipping insertion in model container [2019-12-07 20:05:44,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:05:44" (2/3) ... [2019-12-07 20:05:44,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685d08e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:05:44, skipping insertion in model container [2019-12-07 20:05:44,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:05:44" (3/3) ... [2019-12-07 20:05:44,525 INFO L109 eAbstractionObserver]: Analyzing ICFG 1_3.i [2019-12-07 20:05:44,531 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:05:44,535 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-07 20:05:44,542 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 20:05:44,558 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:05:44,558 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:05:44,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:05:44,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:05:44,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:05:44,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:05:44,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:05:44,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:05:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-12-07 20:05:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 20:05:44,571 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:05:44,571 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 20:05:44,571 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:05:44,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:05:44,575 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2019-12-07 20:05:44,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:05:44,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515977865] [2019-12-07 20:05:44,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 20:05:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:05:44,641 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 13 conjunts are in the unsatisfiable core [2019-12-07 20:05:44,645 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:05:44,680 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 20:05:44,682 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 20:05:44,685 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-12-07 20:05:44,686 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,687 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,763 INFO L343 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2019-12-07 20:05:44,763 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 3 case distinctions, treesize of input 30 treesize of output 36 [2019-12-07 20:05:44,764 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,779 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 20:05:44,780 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,780 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:36 [2019-12-07 20:05:44,828 INFO L343 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2019-12-07 20:05:44,828 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2019-12-07 20:05:44,829 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,831 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 20:05:44,831 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,832 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:67, output treesize:10 [2019-12-07 20:05:44,840 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 20:05:44,840 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:05:44,866 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 31 treesize of output 29 [2019-12-07 20:05:44,868 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,869 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,869 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,872 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,873 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,873 INFO L172 IndexEqualityManager]: detected equality via solver [2019-12-07 20:05:44,874 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,876 INFO L614 ElimStorePlain]: treesize reduction 5, result has 16.7 percent of original size [2019-12-07 20:05:44,876 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,878 INFO L614 ElimStorePlain]: treesize reduction 62, result has 1.6 percent of original size [2019-12-07 20:05:44,878 INFO L502 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2019-12-07 20:05:44,878 INFO L502 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-12-07 20:05:44,878 INFO L534 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 20:05:44,879 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:94, output treesize:1 [2019-12-07 20:05:44,879 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 20:05:44,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515977865] [2019-12-07 20:05:44,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:05:44,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:05:44,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220086564] [2019-12-07 20:05:44,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:05:44,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:05:44,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:05:44,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:05:44,895 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2019-12-07 20:05:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:05:44,995 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 20:05:44,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:05:44,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 20:05:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:05:45,003 INFO L225 Difference]: With dead ends: 27 [2019-12-07 20:05:45,003 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 20:05:45,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 3 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 20:05:45,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 20:05:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 20:05:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 20:05:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2019-12-07 20:05:45,025 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2019-12-07 20:05:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:05:45,025 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2019-12-07 20:05:45,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:05:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-12-07 20:05:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 20:05:45,025 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:05:45,025 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:05:45,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:05:45,226 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:05:45,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:05:45,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2019-12-07 20:05:45,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:05:45,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924011545] [2019-12-07 20:05:45,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/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 20:05:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:05:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:05:45,336 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:05:45,337 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:05:45,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:05:45,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:05:45 BoogieIcfgContainer [2019-12-07 20:05:45,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:05:45,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:05:45,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:05:45,587 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:05:45,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:05:44" (3/4) ... [2019-12-07 20:05:45,589 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:05:45,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_703c7ee8-7f5f-4ffa-ae09-03a4ce0973c0/bin/utaipan/witness.graphml [2019-12-07 20:05:45,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:05:45,622 INFO L168 Benchmark]: Toolchain (without parser) took 1534.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 956.4 MB in the beginning and 1.0 GB in the end (delta: -68.8 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,622 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:05:45,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,624 INFO L168 Benchmark]: Boogie Preprocessor took 16.20 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 20:05:45,624 INFO L168 Benchmark]: RCFGBuilder took 176.53 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,624 INFO L168 Benchmark]: TraceAbstraction took 1065.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,625 INFO L168 Benchmark]: Witness Printer took 34.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:05:45,627 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 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.96 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.20 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. * RCFGBuilder took 176.53 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1065.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.6 MB). Peak memory consumption was 74.6 MB. Max. memory is 11.5 GB. * Witness Printer took 34.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L50] rr * ptr1 = 0; [L30] rr * r = (rr *)malloc(sizeof *r); [L31] r -> state = 0 [L32] return r; [L37] rr * r = getrr(); [L38] r -> state = 1 [L39] return r; [L51] ptr1 = getPtr() [L44] EXPR ptr -> state [L44] (ptr -> state == 1) ? (0) : __blast_assert () [L45] ptr -> state = 2 [L44] EXPR ptr -> state [L44] (ptr -> state == 1) ? (0) : __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 3 SDslu, 14 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 510 SizeOfPredicates, 15 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...