./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI --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 2d0112de9ad9d3f82608655d06d02cf60f75cc06 ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:33,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:33,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:33,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:33,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:33,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:33,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:33,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:33,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:33,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:33,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:33,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:33,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:33,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:33,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:33,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:33,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:33,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:33,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:33,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:33,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:33,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:33,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:33,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:33,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:33,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:33,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:33,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:33,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:33,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:33,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:33,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:33,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:33,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:33,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:33,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:33,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:33,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:33,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:33,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:33,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:33,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:22:33,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:33,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:33,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:33,177 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:33,178 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:33,178 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:33,178 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:33,178 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:33,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:33,179 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:33,179 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:33,179 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:33,180 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:33,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:33,180 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:33,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:33,182 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:33,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:33,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:33,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:33,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:33,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:33,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:33,183 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:33,184 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:33,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:33,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:33,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:33,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:33,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:33,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:33,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:33,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:33,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:33,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:33,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:33,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:33,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:33,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:33,188 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_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0112de9ad9d3f82608655d06d02cf60f75cc06 [2021-10-11 02:22:33,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:33,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:33,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:33,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:33,541 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:33,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2021-10-11 02:22:33,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/data/7a33ede64/2bbe427867854dfb9c5ab88612a6eed6/FLAG4bb06f84e [2021-10-11 02:22:34,151 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:34,152 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c [2021-10-11 02:22:34,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/data/7a33ede64/2bbe427867854dfb9c5ab88612a6eed6/FLAG4bb06f84e [2021-10-11 02:22:34,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/data/7a33ede64/2bbe427867854dfb9c5ab88612a6eed6 [2021-10-11 02:22:34,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:34,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:34,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:34,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:34,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:34,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf01504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34, skipping insertion in model container [2021-10-11 02:22:34,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:34,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:34,762 WARN L226 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_192a1741-ef0b-40ca-984a-adebc9eb7ceb/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c[525,538] [2021-10-11 02:22:34,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:34,787 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:34,799 WARN L226 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_192a1741-ef0b-40ca-984a-adebc9eb7ceb/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound1.c[525,538] [2021-10-11 02:22:34,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:34,821 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:34,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34 WrapperNode [2021-10-11 02:22:34,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:34,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:34,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:34,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:34,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:34,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:34,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:34,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:34,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:34,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:34,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:34,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:34,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:22:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:35,457 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:35,457 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-11 02:22:35,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35 BoogieIcfgContainer [2021-10-11 02:22:35,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:35,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:35,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:35,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:35,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:34" (1/3) ... [2021-10-11 02:22:35,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34de341d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:35, skipping insertion in model container [2021-10-11 02:22:35,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34" (2/3) ... [2021-10-11 02:22:35,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34de341d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:35, skipping insertion in model container [2021-10-11 02:22:35,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35" (3/3) ... [2021-10-11 02:22:35,470 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound1.c [2021-10-11 02:22:35,486 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:35,490 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:22:35,519 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:22:35,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:35,549 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:35,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:35,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:35,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:35,550 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:35,550 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:35,550 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:22:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:22:35,571 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:35,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:22:35,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:35,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:35,592 INFO L82 PathProgramCache]: Analyzing trace with hash 3279093, now seen corresponding path program 1 times [2021-10-11 02:22:35,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:35,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860950571] [2021-10-11 02:22:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:35,695 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:22:35,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [724053071] [2021-10-11 02:22:35,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:22:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:35,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-11 02:22:35,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:36,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:22:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:36,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860950571] [2021-10-11 02:22:36,067 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:22:36,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724053071] [2021-10-11 02:22:36,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:36,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:22:36,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261015294] [2021-10-11 02:22:36,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:22:36,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:36,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:22:36,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:22:36,092 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2021-10-11 02:22:38,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:38,255 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2021-10-11 02:22:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:22:38,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2021-10-11 02:22:38,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:38,268 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:22:38,268 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:22:38,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:22:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:22:38,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-10-11 02:22:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:22:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-11 02:22:38,337 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-10-11 02:22:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:38,338 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-11 02:22:38,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:22:38,339 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-11 02:22:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:38,339 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:38,340 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2021-10-11 02:22:38,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:22:38,557 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:38,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1238661099, now seen corresponding path program 1 times [2021-10-11 02:22:38,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:38,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125210866] [2021-10-11 02:22:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:38,566 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:22:38,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335256859] [2021-10-11 02:22:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:22:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:38,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:22:38,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:38,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:22:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:38,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125210866] [2021-10-11 02:22:38,739 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:22:38,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335256859] [2021-10-11 02:22:38,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:38,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:22:38,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993786849] [2021-10-11 02:22:38,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:22:38,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:38,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:22:38,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:22:38,743 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2021-10-11 02:22:38,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:38,751 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-11 02:22:38,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:22:38,752 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:22:38,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:38,752 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:22:38,752 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:22:38,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:22:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:22:38,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:22:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:22:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:22:38,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-10-11 02:22:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:38,755 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:22:38,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:22:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:22:38,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:22:38,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:22:38,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:22:39,117 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:22:39,118 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:22:39,120 INFO L258 CegarLoopResult]: At program point L15-2(lines 39 40) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~a~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2021-10-11 02:22:39,120 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2021-10-11 02:22:39,120 INFO L258 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:22:39,121 INFO L258 CegarLoopResult]: At program point L36-2(lines 36 45) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~a~0) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~a~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)) (<= ULTIMATE.start_main_~k~0 1)) [2021-10-11 02:22:39,121 INFO L262 CegarLoopResult]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2021-10-11 02:22:39,121 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,123 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2021-10-11 02:22:39,123 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:22:39,123 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2021-10-11 02:22:39,123 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:39 BoogieIcfgContainer [2021-10-11 02:22:39,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:39,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:39,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:39,157 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:39,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:35" (3/4) ... [2021-10-11 02:22:39,162 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:22:39,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 02:22:39,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:22:39,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:22:39,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:22:39,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_192a1741-ef0b-40ca-984a-adebc9eb7ceb/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:39,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:39,259 INFO L168 Benchmark]: Toolchain (without parser) took 4743.57 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.2 MB in the beginning and 60.6 MB in the end (delta: -4.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,260 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:39,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.93 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 69.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.23 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 67.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,262 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,262 INFO L168 Benchmark]: RCFGBuilder took 571.48 ms. Allocated memory is still 92.3 MB. Free memory was 66.2 MB in the beginning and 42.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,263 INFO L168 Benchmark]: TraceAbstraction took 3694.42 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.3 MB in the beginning and 63.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 982.4 kB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,263 INFO L168 Benchmark]: Witness Printer took 101.07 ms. Allocated memory is still 111.1 MB. Free memory was 63.2 MB in the beginning and 60.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:39,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 304.93 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 69.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.23 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 67.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 92.3 MB. Free memory was 67.5 MB in the beginning and 66.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 571.48 ms. Allocated memory is still 92.3 MB. Free memory was 66.2 MB in the beginning and 42.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3694.42 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 42.3 MB in the beginning and 63.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 982.4 kB. Max. memory is 16.1 GB. * Witness Printer took 101.07 ms. Allocated memory is still 111.1 MB. Free memory was 63.2 MB in the beginning and 60.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((0 <= z && a == x) && 0 <= a) && 1 <= c) && y == 1) && 0 <= k) && z <= 1) && a <= 1) && az == a * z) && k <= 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((0 <= z && a == x) && 1 == cond) && 0 <= a) && 1 <= c) && y == 1) && 0 <= k) && z <= 1) && a <= 1) && az == a * z) && k <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 28 SDslu, 20 SDs, 0 SdLazy, 24 SolverSat, 18 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 73 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 942 SizeOfPredicates, 12 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 14/14 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 correct! Received shutdown request...