./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 ................................................................................................................................................................................................................................................................................ 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:52:54,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:52:54,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:52:54,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:52:54,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:52:54,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:52:54,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:52:54,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:52:54,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:52:54,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:52:54,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:52:54,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:52:54,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:52:54,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:52:54,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:52:54,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:52:54,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:52:54,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:52:54,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:52:54,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:52:54,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:52:54,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:52:54,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:52:54,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:52:54,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:52:54,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:52:54,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:52:54,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:52:54,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:52:54,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:52:54,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:52:54,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:52:54,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:52:54,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:52:54,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:52:54,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:52:54,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:52:54,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:52:54,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:52:54,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:52:54,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:52:54,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:52:54,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:52:54,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:52:54,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:52:54,939 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:52:54,940 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:52:54,941 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:52:54,941 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:52:54,941 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:52:54,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:52:54,945 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:52:54,945 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:52:54,945 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:52:54,946 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:52:54,946 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:52:54,946 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:52:54,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:52:54,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:52:54,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:52:54,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:52:54,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:52:54,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:52:54,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:52:54,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:52:54,950 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:52:54,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:52:54,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:52:54,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:52:54,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:52:54,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:52:54,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:52:54,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:52:54,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:52:54,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:52:54,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:52:54,954 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:52:54,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:52:54,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:52:54,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:52:54,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:52:54,955 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 [2021-10-16 02:52:55,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:52:55,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:52:55,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:52:55,293 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:52:55,293 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:52:55,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-16 02:52:55,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/7d45c73d4/f73c734a16144ff4b63cff208ec81505/FLAGa4fec24ed [2021-10-16 02:52:55,828 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:52:55,829 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-16 02:52:55,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/7d45c73d4/f73c734a16144ff4b63cff208ec81505/FLAGa4fec24ed [2021-10-16 02:52:56,222 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/7d45c73d4/f73c734a16144ff4b63cff208ec81505 [2021-10-16 02:52:56,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:52:56,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:52:56,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:52:56,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:52:56,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:52:56,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee385e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56, skipping insertion in model container [2021-10-16 02:52:56,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:52:56,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:52:56,479 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-16 02:52:56,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:52:56,533 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:52:56,552 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-16 02:52:56,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:52:56,592 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:52:56,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56 WrapperNode [2021-10-16 02:52:56,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:52:56,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:52:56,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:52:56,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:52:56,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:52:56,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:52:56,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:52:56,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:52:56,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:52:56,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:52:56,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:52:56,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:52:56,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (1/1) ... [2021-10-16 02:52:56,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:52:56,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:52:56,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:52:56,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:52:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:52:56,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:52:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:52:56,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:52:57,157 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:52:57,157 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:52:57,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:57 BoogieIcfgContainer [2021-10-16 02:52:57,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:52:57,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:52:57,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:52:57,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:52:57,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:52:56" (1/3) ... [2021-10-16 02:52:57,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b8123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:57, skipping insertion in model container [2021-10-16 02:52:57,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:52:56" (2/3) ... [2021-10-16 02:52:57,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b8123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:57, skipping insertion in model container [2021-10-16 02:52:57,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:57" (3/3) ... [2021-10-16 02:52:57,172 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-10-16 02:52:57,177 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:52:57,185 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:52:57,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:52:57,246 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 02:52:57,247 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:52:57,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 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 02:52:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:52:57,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:52:57,271 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:52:57,272 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:52:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:52:57,285 INFO L82 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2021-10-16 02:52:57,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:52:57,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393560000] [2021-10-16 02:52:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:52:57,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:52:57,425 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:52:57,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808073131] [2021-10-16 02:52:57,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:52:57,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:52:57,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:52:57,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:52:57,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:52:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:52:57,507 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:52:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:52:57,549 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:52:57,551 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:52:57,553 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,555 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,556 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,556 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,557 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,558 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:52:57,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:52:57,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 02:52:57,778 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:52:57,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:52:57 BoogieIcfgContainer [2021-10-16 02:52:57,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:52:57,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:52:57,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:52:57,805 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:52:57,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:57" (3/4) ... [2021-10-16 02:52:57,809 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:52:57,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:52:57,812 INFO L168 Benchmark]: Toolchain (without parser) took 1584.73 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 73.2 MB in the beginning and 89.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,812 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:52:57,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.81 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 73.2 MB in the beginning and 121.2 MB in the end (delta: -48.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 119.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:52:57,817 INFO L168 Benchmark]: Boogie Preprocessor took 47.04 ms. Allocated memory is still 146.8 MB. Free memory was 119.7 MB in the beginning and 118.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,823 INFO L168 Benchmark]: RCFGBuilder took 460.14 ms. Allocated memory is still 146.8 MB. Free memory was 118.6 MB in the beginning and 106.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,823 INFO L168 Benchmark]: TraceAbstraction took 638.14 ms. Allocated memory is still 146.8 MB. Free memory was 105.4 MB in the beginning and 90.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,824 INFO L168 Benchmark]: Witness Printer took 4.94 ms. Allocated memory is still 146.8 MB. Free memory was 90.3 MB in the beginning and 89.8 MB in the end (delta: 560.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:57,832 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 102.8 MB. Free memory is still 57.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.81 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 73.2 MB in the beginning and 121.2 MB in the end (delta: -48.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.25 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 119.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.04 ms. Allocated memory is still 146.8 MB. Free memory was 119.7 MB in the beginning and 118.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 460.14 ms. Allocated memory is still 146.8 MB. Free memory was 118.6 MB in the beginning and 106.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 638.14 ms. Allocated memory is still 146.8 MB. Free memory was 105.4 MB in the beginning and 90.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.94 ms. Allocated memory is still 146.8 MB. Free memory was 90.3 MB in the beginning and 89.8 MB in the end (delta: 560.1 kB). 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 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 539.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.8ms SsaConstructionTime, 24.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:52:57,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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 02:53:00,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:53:00,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:53:00,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:53:00,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:53:00,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:53:00,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:53:00,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:53:00,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:53:00,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:53:00,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:53:00,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:53:00,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:53:00,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:53:00,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:53:00,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:53:00,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:53:00,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:53:00,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:53:00,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:53:00,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:53:00,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:53:00,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:53:00,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:53:00,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:53:00,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:53:00,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:53:00,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:53:00,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:53:00,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:53:00,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:53:00,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:53:00,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:53:00,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:53:00,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:53:00,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:53:00,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:53:00,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:53:00,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:53:00,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:53:00,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:53:00,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:53:00,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:53:00,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:53:00,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:53:00,539 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:53:00,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:53:00,540 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:53:00,540 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:53:00,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:53:00,541 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:53:00,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:53:00,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:53:00,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:53:00,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:53:00,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:53:00,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:53:00,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:53:00,546 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:53:00,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:53:00,546 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:53:00,546 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:53:00,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:53:00,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:53:00,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:53:00,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:53:00,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:53:00,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:53:00,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:53:00,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:53:00,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:53:00,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:53:00,549 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:53:00,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:53:00,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:53:00,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:53:00,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:53:00,551 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 [2021-10-16 02:53:00,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:53:00,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:53:00,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:53:00,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:53:00,975 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:53:00,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-16 02:53:01,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/a797a0649/5c94368462994b98a891772d33b37c43/FLAG262f82935 [2021-10-16 02:53:01,675 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:53:01,675 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-10-16 02:53:01,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/a797a0649/5c94368462994b98a891772d33b37c43/FLAG262f82935 [2021-10-16 02:53:01,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/data/a797a0649/5c94368462994b98a891772d33b37c43 [2021-10-16 02:53:01,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:53:01,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:53:01,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:53:01,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:53:01,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:53:01,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:01" (1/1) ... [2021-10-16 02:53:01,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d072d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:01, skipping insertion in model container [2021-10-16 02:53:01,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:01" (1/1) ... [2021-10-16 02:53:01,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:53:01,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:53:01,912 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-16 02:53:01,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:53:01,957 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:53:01,974 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_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-10-16 02:53:02,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:53:02,022 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:53:02,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02 WrapperNode [2021-10-16 02:53:02,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:53:02,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:53:02,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:53:02,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:53:02,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:53:02,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:53:02,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:53:02,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:53:02,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:53:02,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:53:02,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:53:02,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:53:02,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (1/1) ... [2021-10-16 02:53:02,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:53:02,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:53:02,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:53:02,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:53:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:53:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:53:02,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:53:02,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:53:14,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:53:14,012 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:53:14,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:53:14 BoogieIcfgContainer [2021-10-16 02:53:14,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:53:14,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:53:14,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:53:14,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:53:14,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:53:01" (1/3) ... [2021-10-16 02:53:14,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca3e7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:53:14, skipping insertion in model container [2021-10-16 02:53:14,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:02" (2/3) ... [2021-10-16 02:53:14,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca3e7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:53:14, skipping insertion in model container [2021-10-16 02:53:14,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:53:14" (3/3) ... [2021-10-16 02:53:14,023 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-10-16 02:53:14,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:53:14,028 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:53:14,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:53:14,081 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 02:53:14,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:53:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 02:53:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:53:14,099 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:53:14,100 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:53:14,100 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:53:14,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:53:14,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-16 02:53:14,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:53:14,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1425358443] [2021-10-16 02:53:14,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:53:14,119 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:53:14,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:53:14,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:53:14,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:53:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:53:14,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:53:14,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:53:14,424 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 02:53:14,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:53:14,474 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 02:53:14,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:53:14,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1425358443] [2021-10-16 02:53:14,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1425358443] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:53:14,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:53:14,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:53:14,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374514858] [2021-10-16 02:53:14,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:53:14,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:53:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:53:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:53:14,503 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 02:53:14,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:53:14,524 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-16 02:53:14,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:53:14,526 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) Word has length 7 [2021-10-16 02:53:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:53:14,536 INFO L225 Difference]: With dead ends: 63 [2021-10-16 02:53:14,536 INFO L226 Difference]: Without dead ends: 29 [2021-10-16 02:53:14,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:53:14,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-16 02:53:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-16 02:53:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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 02:53:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-16 02:53:14,577 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-16 02:53:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:53:14,578 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-16 02:53:14,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 02:53:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-16 02:53:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:53:14,579 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:53:14,579 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:53:14,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:53:14,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:53:14,795 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:53:14,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:53:14,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-16 02:53:14,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:53:14,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257923164] [2021-10-16 02:53:14,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:53:14,798 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:53:14,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:53:14,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:53:14,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:53:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:53:14,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:53:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:53:15,271 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 02:53:15,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:53:20,281 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 02:53:20,282 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:53:20,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257923164] [2021-10-16 02:53:20,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257923164] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:53:20,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:53:20,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:53:20,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157424030] [2021-10-16 02:53:20,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:53:20,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:53:20,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:53:20,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:53:20,286 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 02:53:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:53:50,816 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-16 02:53:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:53:50,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2021-10-16 02:53:50,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:53:50,818 INFO L225 Difference]: With dead ends: 34 [2021-10-16 02:53:50,819 INFO L226 Difference]: Without dead ends: 32 [2021-10-16 02:53:50,819 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3879.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:53:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-16 02:53:50,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-16 02:53:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 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 02:53:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-16 02:53:50,826 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-10-16 02:53:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:53:50,826 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-16 02:53:50,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 02:53:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-16 02:53:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:53:50,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:53:50,827 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:53:50,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:53:51,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:53:51,037 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:53:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:53:51,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-16 02:53:51,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:53:51,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523560643] [2021-10-16 02:53:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:53:51,040 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:53:51,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:53:51,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:53:51,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:53:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:53:51,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:53:51,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:53:53,395 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 02:53:53,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:53:59,408 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-16 02:54:01,446 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-16 02:54:28,163 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 02:54:28,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:28,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523560643] [2021-10-16 02:54:28,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523560643] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:54:28,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:54:28,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-16 02:54:28,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126902198] [2021-10-16 02:54:28,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-16 02:54:28,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:28,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-16 02:54:28,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-10-16 02:54:28,168 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 02:54:34,223 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))))) (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse0 .cse1 (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (or (not .cse1) (not .cse0))) (and .cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse1)) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-16 02:54:36,562 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-16 02:55:17,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:17,002 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-10-16 02:55:17,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:55:17,002 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 9 [2021-10-16 02:55:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:17,003 INFO L225 Difference]: With dead ends: 36 [2021-10-16 02:55:17,003 INFO L226 Difference]: Without dead ends: 34 [2021-10-16 02:55:17,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 24829.5ms TimeCoverageRelationStatistics Valid=41, Invalid=77, Unknown=4, NotChecked=60, Total=182 [2021-10-16 02:55:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-16 02:55:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-16 02:55:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-16 02:55:17,011 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-10-16 02:55:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:17,011 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-16 02:55:17,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 02:55:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-16 02:55:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:55:17,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:17,012 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:55:17,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:17,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:17,213 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:17,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-16 02:55:17,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:17,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008373505] [2021-10-16 02:55:17,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:17,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:17,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:17,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:17,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:55:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:55:19,157 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:56:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:56:58,634 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:56:58,634 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:56:58,635 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,637 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,638 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:58,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-16 02:56:58,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:56:58,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:56:58,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:56:58 BoogieIcfgContainer [2021-10-16 02:56:58,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:56:58,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:56:58,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:56:58,866 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:56:58,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:53:14" (3/4) ... [2021-10-16 02:56:58,868 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:56:58,906 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:56:58,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:56:58,908 INFO L168 Benchmark]: Toolchain (without parser) took 237195.67 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 40.2 MB in the beginning and 39.9 MB in the end (delta: 227.8 kB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,909 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:58,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.39 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 28.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.15 ms. Allocated memory is still 60.8 MB. Free memory was 28.9 MB in the beginning and 27.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,911 INFO L168 Benchmark]: Boogie Preprocessor took 58.38 ms. Allocated memory is still 60.8 MB. Free memory was 27.0 MB in the beginning and 25.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:58,911 INFO L168 Benchmark]: RCFGBuilder took 11866.39 ms. Allocated memory is still 60.8 MB. Free memory was 25.5 MB in the beginning and 33.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,912 INFO L168 Benchmark]: TraceAbstraction took 224848.44 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 33.3 MB in the beginning and 41.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,912 INFO L168 Benchmark]: Witness Printer took 41.52 ms. Allocated memory is still 79.7 MB. Free memory was 41.6 MB in the beginning and 39.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:58,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.39 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 28.9 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.15 ms. Allocated memory is still 60.8 MB. Free memory was 28.9 MB in the beginning and 27.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.38 ms. Allocated memory is still 60.8 MB. Free memory was 27.0 MB in the beginning and 25.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 11866.39 ms. Allocated memory is still 60.8 MB. Free memory was 25.5 MB in the beginning and 33.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 224848.44 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 33.3 MB in the beginning and 41.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. * Witness Printer took 41.52 ms. Allocated memory is still 79.7 MB. Free memory was 41.6 MB in the beginning and 39.9 MB in the end (delta: 1.6 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 224770.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 9.7ms, AutomataDifference: 79428.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 75 SolverSat, 10 SolverUnsat, 30 SolverUnknown, 0 SolverNotchecked, 73348.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 28709.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35.9ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 36.1ms SsaConstructionTime, 2734.0ms SatisfiabilityAnalysisTime, 41951.2ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 02:56:59,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63c37901-9ea1-4d44-b64a-ca7d9a76ae37/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...