./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66fc40811a6b64eeba1619d2b2b45575ff6b207a ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 66fc40811a6b64eeba1619d2b2b45575ff6b207a ......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:01:24,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:01:24,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:01:24,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:01:24,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:01:24,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:01:24,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:01:24,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:01:24,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:01:24,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:01:24,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:01:24,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:01:24,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:01:24,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:01:24,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:01:24,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:01:24,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:01:24,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:01:24,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:01:24,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:01:24,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:01:24,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:01:24,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:01:24,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:01:24,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:01:24,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:01:24,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:01:24,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:01:24,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:01:24,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:01:24,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:01:24,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:01:24,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:01:24,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:01:24,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:01:24,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:01:24,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:01:24,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:01:24,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:01:24,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:01:24,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:01:24,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:01:24,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:01:24,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:01:24,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:01:24,631 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:01:24,631 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:01:24,631 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:01:24,632 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:01:24,632 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:01:24,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:01:24,632 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:01:24,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:01:24,639 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:01:24,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:01:24,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:01:24,640 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:01:24,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:01:24,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:01:24,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:01:24,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:01:24,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:01:24,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:01:24,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:01:24,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:01:24,650 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:01:24,650 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:01:24,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:01:24,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:01:24,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:01:24,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:01:24,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:01:24,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:24,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:01:24,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:01:24,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:01:24,654 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:01:24,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:01:24,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:01:24,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:01:24,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:01:24,656 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fc40811a6b64eeba1619d2b2b45575ff6b207a [2021-10-16 03:01:24,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:01:24,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:01:24,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:01:24,940 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:01:24,940 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:01:24,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-16 03:01:25,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/922738c02/7bc341fd22434ef78baa8da86ac7b85a/FLAGfc810426d [2021-10-16 03:01:25,529 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:01:25,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-16 03:01:25,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/922738c02/7bc341fd22434ef78baa8da86ac7b85a/FLAGfc810426d [2021-10-16 03:01:25,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/922738c02/7bc341fd22434ef78baa8da86ac7b85a [2021-10-16 03:01:25,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:01:25,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:01:25,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:25,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:01:25,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:01:25,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:25" (1/1) ... [2021-10-16 03:01:25,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a24c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:25, skipping insertion in model container [2021-10-16 03:01:25,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:25" (1/1) ... [2021-10-16 03:01:25,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:01:25,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:01:26,154 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-16 03:01:26,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:26,175 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:01:26,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-16 03:01:26,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:26,206 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:01:26,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26 WrapperNode [2021-10-16 03:01:26,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:26,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:26,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:01:26,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:01:26,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:26,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:01:26,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:01:26,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:01:26,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:01:26,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:01:26,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:01:26,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:01:26,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (1/1) ... [2021-10-16 03:01:26,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:26,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:01:26,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:01:26,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:01:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:01:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:01:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:01:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:01:26,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:01:26,560 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 03:01:26,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:26 BoogieIcfgContainer [2021-10-16 03:01:26,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:01:26,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:01:26,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:01:26,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:01:26,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:01:25" (1/3) ... [2021-10-16 03:01:26,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13472807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:26, skipping insertion in model container [2021-10-16 03:01:26,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:26" (2/3) ... [2021-10-16 03:01:26,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13472807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:26, skipping insertion in model container [2021-10-16 03:01:26,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:26" (3/3) ... [2021-10-16 03:01:26,573 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-10-16 03:01:26,580 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:01:26,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:01:26,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:01:26,637 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:01:26,637 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:01:26,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:01:26,659 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:26,660 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:01:26,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:26,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1738899, now seen corresponding path program 1 times [2021-10-16 03:01:26,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:01:26,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116992978] [2021-10-16 03:01:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:26,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:01:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:26,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:01:26,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116992978] [2021-10-16 03:01:26,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116992978] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:01:26,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:01:26,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:01:26,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720514259] [2021-10-16 03:01:26,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:01:26,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:01:26,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:01:26,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:01:27,001 INFO L87 Difference]: Start difference. First operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:01:27,072 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2021-10-16 03:01:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:01:27,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 03:01:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:01:27,083 INFO L225 Difference]: With dead ends: 13 [2021-10-16 03:01:27,084 INFO L226 Difference]: Without dead ends: 7 [2021-10-16 03:01:27,087 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:01:27,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-16 03:01:27,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-16 03:01:27,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-16 03:01:27,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2021-10-16 03:01:27,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:01:27,124 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-16 03:01:27,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-16 03:01:27,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:01:27,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:27,125 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-10-16 03:01:27,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:01:27,126 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:27,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:27,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1671226539, now seen corresponding path program 1 times [2021-10-16 03:01:27,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:01:27,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139604375] [2021-10-16 03:01:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:27,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:01:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:27,547 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:01:27,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139604375] [2021-10-16 03:01:27,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139604375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:01:27,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943940334] [2021-10-16 03:01:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:27,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:01:27,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:01:27,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:01:27,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:01:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:27,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-16 03:01:27,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:28,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:28,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:28,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943940334] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:01:28,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [683350767] [2021-10-16 03:01:28,586 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2021-10-16 03:01:28,588 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:01:28,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:01:28,603 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:01:28,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:01:28,646 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,656 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:01:28,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:01:28,661 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:01:28,662 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,663 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:01:28,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-16 03:01:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:01:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:01:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:01:28,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:01:28,732 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:01:28,739 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,740 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:01:28,741 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:01:28,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:28,801 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:01:28,808 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 128 [2021-10-16 03:01:28,809 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:01:28,811 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:125, output treesize:128 [2021-10-16 03:01:28,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:01:29,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:01:29,039 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:01:29,043 INFO L168 Benchmark]: Toolchain (without parser) took 3098.82 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 75.1 MB in the beginning and 90.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,044 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 117.4 MB. Free memory is still 91.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:29,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.21 ms. Allocated memory is still 117.4 MB. Free memory was 74.9 MB in the beginning and 91.3 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,046 INFO L168 Benchmark]: Boogie Preprocessor took 22.96 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 89.0 MB in the end (delta: 769.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,047 INFO L168 Benchmark]: RCFGBuilder took 297.33 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 78.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,048 INFO L168 Benchmark]: TraceAbstraction took 2476.93 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 78.5 MB in the beginning and 90.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:29,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 117.4 MB. Free memory is still 91.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.21 ms. Allocated memory is still 117.4 MB. Free memory was 74.9 MB in the beginning and 91.3 MB in the end (delta: -16.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.93 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 89.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.96 ms. Allocated memory is still 117.4 MB. Free memory was 89.8 MB in the beginning and 89.0 MB in the end (delta: 769.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 297.33 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 78.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2476.93 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 78.5 MB in the beginning and 90.2 MB in the end (delta: -11.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:01:29,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:01:31,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:01:31,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:01:31,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:01:31,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:01:31,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:01:31,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:01:31,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:01:31,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:01:31,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:01:32,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:01:32,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:01:32,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:01:32,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:01:32,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:01:32,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:01:32,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:01:32,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:01:32,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:01:32,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:01:32,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:01:32,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:01:32,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:01:32,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:01:32,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:01:32,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:01:32,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:01:32,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:01:32,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:01:32,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:01:32,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:01:32,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:01:32,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:01:32,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:01:32,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:01:32,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:01:32,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:01:32,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:01:32,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:01:32,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:01:32,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:01:32,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:01:32,089 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:01:32,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:01:32,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:01:32,091 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:01:32,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:01:32,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:01:32,092 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:01:32,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:01:32,092 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:01:32,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:01:32,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:01:32,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:01:32,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:01:32,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:01:32,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:01:32,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:01:32,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:01:32,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:01:32,097 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:01:32,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:01:32,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:01:32,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:01:32,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:01:32,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:01:32,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:01:32,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:01:32,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:32,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:01:32,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:01:32,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:01:32,100 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:01:32,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:01:32,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:01:32,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:01:32,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:01:32,101 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fc40811a6b64eeba1619d2b2b45575ff6b207a [2021-10-16 03:01:32,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:01:32,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:01:32,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:01:32,580 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:01:32,581 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:01:32,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-16 03:01:32,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/493cbbcd3/7278322cfda043e8ab9e4e9348ea991a/FLAG12d15e83f [2021-10-16 03:01:33,240 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:01:33,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c [2021-10-16 03:01:33,247 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/493cbbcd3/7278322cfda043e8ab9e4e9348ea991a/FLAG12d15e83f [2021-10-16 03:01:33,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/data/493cbbcd3/7278322cfda043e8ab9e4e9348ea991a [2021-10-16 03:01:33,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:01:33,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:01:33,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:33,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:01:33,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:01:33,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286b0236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33, skipping insertion in model container [2021-10-16 03:01:33,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:01:33,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:01:33,788 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-16 03:01:33,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:33,813 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:01:33,858 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/sv-benchmarks/c/loop-crafted/simple_vardep_1.c[584,597] [2021-10-16 03:01:33,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:33,905 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:01:33,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33 WrapperNode [2021-10-16 03:01:33,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:33,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:33,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:01:33,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:01:33,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:33,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:01:33,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:01:33,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:01:33,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:33,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:01:33,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:01:33,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:01:33,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:01:33,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (1/1) ... [2021-10-16 03:01:34,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:34,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:01:34,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:01:34,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:01:34,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:01:34,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:01:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:01:34,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:01:34,423 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:01:34,423 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 03:01:34,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:34 BoogieIcfgContainer [2021-10-16 03:01:34,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:01:34,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:01:34,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:01:34,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:01:34,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:01:33" (1/3) ... [2021-10-16 03:01:34,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb70a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:34, skipping insertion in model container [2021-10-16 03:01:34,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:33" (2/3) ... [2021-10-16 03:01:34,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb70a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:34, skipping insertion in model container [2021-10-16 03:01:34,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:34" (3/3) ... [2021-10-16 03:01:34,455 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_1.c [2021-10-16 03:01:34,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:01:34,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:01:34,543 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:01:34,554 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:01:34,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:01:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:34,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 03:01:34,587 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:34,588 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 03:01:34,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:34,599 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2021-10-16 03:01:34,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:01:34,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074655868] [2021-10-16 03:01:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:34,649 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:01:34,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:01:34,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:01:34,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:01:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:34,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 03:01:34,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:34,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:34,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:01:35,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:01:35,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074655868] [2021-10-16 03:01:35,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074655868] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:01:35,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:01:35,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 03:01:35,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835010425] [2021-10-16 03:01:35,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:01:35,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:01:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:01:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:01:35,149 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:36,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:01:36,041 INFO L93 Difference]: Finished difference Result 15 states and 21 transitions. [2021-10-16 03:01:36,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:01:36,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 03:01:36,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:01:36,051 INFO L225 Difference]: With dead ends: 15 [2021-10-16 03:01:36,052 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:01:36,055 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 96.4ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:01:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:01:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:01:36,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:36,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:01:36,083 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-16 03:01:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:01:36,084 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:01:36,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:01:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:01:36,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:01:36,088 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:01:36,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 03:01:36,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:01:36,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:01:36,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:36,381 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:01:36,381 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 29) no Hoare annotation was computed. [2021-10-16 03:01:36,381 INFO L857 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2021-10-16 03:01:36,382 INFO L853 garLoopResultBuilder]: At program point L9-2(lines 7 27) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~i~0 (_ bv0 32)) (= ULTIMATE.start_main_~k~0 (_ bv0 32)) (= ULTIMATE.start_main_~j~0 (_ bv0 32))) (and (= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0) ULTIMATE.start_main_~k~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) [2021-10-16 03:01:36,382 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:01:36,382 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:01:36,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:01:36,383 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-10-16 03:01:36,383 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-10-16 03:01:36,389 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:01:36,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:01:36 BoogieIcfgContainer [2021-10-16 03:01:36,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:01:36,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:01:36,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:01:36,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:01:36,426 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:34" (3/4) ... [2021-10-16 03:01:36,432 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:01:36,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 03:01:36,447 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 03:01:36,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:01:36,448 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:01:36,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:01:36,509 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:01:36,512 INFO L168 Benchmark]: Toolchain (without parser) took 2913.67 ms. Allocated memory was 62.9 MB in the beginning and 100.7 MB in the end (delta: 37.7 MB). Free memory was 43.4 MB in the beginning and 61.0 MB in the end (delta: -17.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:36,513 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 44.8 MB in the end (delta: 63.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:36,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.64 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 47.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:36,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:36,516 INFO L168 Benchmark]: Boogie Preprocessor took 41.89 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.5 MB in the end (delta: 926.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:36,517 INFO L168 Benchmark]: RCFGBuilder took 430.57 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 35.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:36,517 INFO L168 Benchmark]: TraceAbstraction took 1991.14 ms. Allocated memory was 62.9 MB in the beginning and 100.7 MB in the end (delta: 37.7 MB). Free memory was 35.0 MB in the beginning and 63.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:36,519 INFO L168 Benchmark]: Witness Printer took 85.28 ms. Allocated memory is still 100.7 MB. Free memory was 63.1 MB in the beginning and 61.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:36,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 44.8 MB in the end (delta: 63.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.64 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 47.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.12 ms. Allocated memory is still 62.9 MB. Free memory was 46.8 MB in the beginning and 45.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.89 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 44.5 MB in the end (delta: 926.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 430.57 ms. Allocated memory is still 62.9 MB. Free memory was 44.3 MB in the beginning and 35.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1991.14 ms. Allocated memory was 62.9 MB in the beginning and 100.7 MB in the end (delta: 37.7 MB). Free memory was 35.0 MB in the beginning and 63.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 85.28 ms. Allocated memory is still 100.7 MB. Free memory was 63.1 MB in the beginning and 61.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1847.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 14.9ms, AutomataDifference: 929.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 78.5ms, InitialAbstractionConstructionTime: 16.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 824.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 96.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 20 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 44.4ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 27.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 12.4ms SsaConstructionTime, 24.0ms SatisfiabilityAnalysisTime, 348.3ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 4 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: ((i == 0bv32 && k == 0bv32) && j == 0bv32) || (~bvadd64(i, j) == k && cond == 1bv32) RESULT: Ultimate proved your program to be correct! [2021-10-16 03:01:36,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab96d0e5-0fe4-47b6-995a-dac97e8ca57d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...