./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test30-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/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 dbf4229fc71e086a20df7dc549a8cc43d35a83d5 ................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-26 02:12:17,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:12:17,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:12:17,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:12:17,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:12:17,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:12:17,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:12:17,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:12:17,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:12:17,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:12:17,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:12:17,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:12:17,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:12:17,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:12:17,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:12:17,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:12:17,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:12:17,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:12:17,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:12:17,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:12:17,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:12:17,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:12:17,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:12:17,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:12:17,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:12:17,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:12:17,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:12:17,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:12:17,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:12:17,635 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:12:17,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:12:17,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:12:17,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:12:17,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:12:17,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:12:17,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:12:17,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:12:17,639 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:12:17,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:12:17,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:12:17,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:12:17,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:12:17,667 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:12:17,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:12:17,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:12:17,679 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:12:17,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:12:17,679 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:12:17,679 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:12:17,680 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:12:17,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:12:17,680 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:12:17,680 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:12:17,680 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:12:17,681 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:12:17,681 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:12:17,681 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:12:17,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:12:17,682 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:12:17,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:12:17,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:12:17,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:12:17,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:12:17,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:12:17,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:12:17,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:12:17,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:12:17,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:12:17,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:12:17,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:12:17,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:12:17,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:12:17,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:12:17,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:12:17,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:12:17,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:12:17,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:12:17,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:12:17,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:12:17,687 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_1670927b-efe2-45f1-96c3-86b0549c6cb6/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 -> dbf4229fc71e086a20df7dc549a8cc43d35a83d5 [2019-11-26 02:12:17,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:12:17,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:12:17,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:12:17,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:12:17,890 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:12:17,891 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/../../sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-26 02:12:17,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/data/2e2f2da8d/af434aa2e32c452ba57435cf7a2e9c51/FLAG6bacbaf01 [2019-11-26 02:12:18,406 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:12:18,406 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/sv-benchmarks/c/ldv-regression/test30-2.c [2019-11-26 02:12:18,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/data/2e2f2da8d/af434aa2e32c452ba57435cf7a2e9c51/FLAG6bacbaf01 [2019-11-26 02:12:18,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/data/2e2f2da8d/af434aa2e32c452ba57435cf7a2e9c51 [2019-11-26 02:12:18,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:12:18,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:12:18,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:12:18,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:12:18,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:12:18,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:12:18" (1/1) ... [2019-11-26 02:12:18,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5301f831 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:18, skipping insertion in model container [2019-11-26 02:12:18,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:12:18" (1/1) ... [2019-11-26 02:12:18,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:12:18,889 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:12:19,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:12:19,172 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:12:19,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:12:19,211 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:12:19,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19 WrapperNode [2019-11-26 02:12:19,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:12:19,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:12:19,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:12:19,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:12:19,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:12:19,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:12:19,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:12:19,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:12:19,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... [2019-11-26 02:12:19,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:12:19,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:12:19,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:12:19,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:12:19,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/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 [2019-11-26 02:12:19,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-26 02:12:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:12:19,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:12:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:12:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:12:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:12:19,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:12:19,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:12:19,707 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:12:19,707 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-26 02:12:19,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:19 BoogieIcfgContainer [2019-11-26 02:12:19,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:12:19,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:12:19,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:12:19,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:12:19,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:12:18" (1/3) ... [2019-11-26 02:12:19,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3154ff9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:12:19, skipping insertion in model container [2019-11-26 02:12:19,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:12:19" (2/3) ... [2019-11-26 02:12:19,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3154ff9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:12:19, skipping insertion in model container [2019-11-26 02:12:19,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:19" (3/3) ... [2019-11-26 02:12:19,715 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-2.c [2019-11-26 02:12:19,723 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:12:19,729 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:12:19,739 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:12:19,759 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:12:19,759 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:12:19,759 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:12:19,759 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:12:19,760 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:12:19,760 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:12:19,760 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:12:19,760 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:12:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:12:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:12:19,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:12:19,777 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:12:19,778 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:12:19,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:12:19,783 INFO L82 PathProgramCache]: Analyzing trace with hash 50264, now seen corresponding path program 1 times [2019-11-26 02:12:19,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:12:19,791 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441105455] [2019-11-26 02:12:19,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:12:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:12:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:12:20,009 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:12:20,010 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:12:20,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:12:20 BoogieIcfgContainer [2019-11-26 02:12:20,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:12:20,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:12:20,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:12:20,035 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:12:20,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:12:19" (3/4) ... [2019-11-26 02:12:20,037 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:12:20,078 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1670927b-efe2-45f1-96c3-86b0549c6cb6/bin/utaipan/witness.graphml [2019-11-26 02:12:20,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:12:20,080 INFO L168 Benchmark]: Toolchain (without parser) took 1219.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -125.9 MB). Peak memory consumption was 434.9 kB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,080 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:12:20,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,082 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.23 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,082 INFO L168 Benchmark]: Boogie Preprocessor took 45.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,083 INFO L168 Benchmark]: RCFGBuilder took 402.66 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,083 INFO L168 Benchmark]: TraceAbstraction took 325.20 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:12:20,084 INFO L168 Benchmark]: Witness Printer took 43.07 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. [2019-11-26 02:12:20,087 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 352.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -171.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.23 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.01 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 402.66 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 325.20 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.07 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 31]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3] int a = 1, b; [L5-L7] struct dummy { int *a, *b; } global = {&a, &b}; [L21] struct dummy *pd = &global; [L16] \read(**pb) [L16] \read(**pb) [L11] EXPR \read(*pb) [L11] *pa = *pb [L25] EXPR \read(a) [L25] EXPR \read(b) VAL [a={3:0}, b={2:0}, global={5:0}] [L25] COND TRUE a != b [L31] __VERIFIER_error() VAL [a={3:0}, b={2:0}, global={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...