./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE --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 d9b9fe259c62fb5e42a98b25b1eab29517b0a01954bac3a5d4434c24ab8740c0 ............................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:24:25,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:24:25,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:24:25,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:24:25,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:24:25,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:24:25,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:24:25,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:24:25,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:24:25,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:24:25,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:24:25,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:24:25,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:24:25,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:24:25,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:24:25,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:24:25,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:24:25,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:24:25,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:24:25,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:24:25,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:24:25,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:24:25,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:24:25,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:24:25,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:24:25,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:24:25,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:24:25,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:24:25,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:24:25,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:24:25,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:24:25,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:24:25,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:24:25,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:24:25,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:24:25,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:24:25,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:24:25,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:24:25,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:24:25,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:24:25,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:24:25,227 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:24:25,272 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:24:25,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:24:25,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:24:25,274 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:24:25,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:24:25,275 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:24:25,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:24:25,275 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:24:25,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:24:25,282 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:24:25,282 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:24:25,282 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:24:25,282 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:24:25,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:24:25,283 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:24:25,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:24:25,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:24:25,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:24:25,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:24:25,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:24:25,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:24:25,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:24:25,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:24:25,285 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:24:25,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:24:25,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:24:25,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:24:25,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:24:25,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:24:25,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:24:25,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:24:25,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:24:25,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:24:25,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:24:25,287 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:24:25,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:24:25,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:24:25,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:24:25,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:24:25,288 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_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9b9fe259c62fb5e42a98b25b1eab29517b0a01954bac3a5d4434c24ab8740c0 [2021-10-24 10:24:25,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:24:25,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:24:25,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:24:25,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:24:25,619 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:24:25,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-10-24 10:24:25,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/data/fa95ed2f5/7934ad13fcc943d99ac416f7bf0845f4/FLAGe650c573c [2021-10-24 10:24:26,120 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:24:26,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c [2021-10-24 10:24:26,140 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/data/fa95ed2f5/7934ad13fcc943d99ac416f7bf0845f4/FLAGe650c573c [2021-10-24 10:24:26,521 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/data/fa95ed2f5/7934ad13fcc943d99ac416f7bf0845f4 [2021-10-24 10:24:26,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:24:26,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:24:26,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:24:26,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:24:26,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:24:26,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63964e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26, skipping insertion in model container [2021-10-24 10:24:26,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:24:26,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:24:26,711 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_840ef60e-32b9-4174-872d-e4c22035b1a8/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-10-24 10:24:26,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:24:26,725 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:24:26,742 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_840ef60e-32b9-4174-872d-e4c22035b1a8/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+lhb-reducer.c[2239,2252] [2021-10-24 10:24:26,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:24:26,761 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:24:26,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26 WrapperNode [2021-10-24 10:24:26,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:24:26,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:24:26,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:24:26,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:24:26,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:24:26,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:24:26,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:24:26,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:24:26,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:24:26,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:24:26,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:24:26,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:24:26,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (1/1) ... [2021-10-24 10:24:26,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:24:26,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:24:26,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:24:26,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:24:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:24:26,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:24:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:24:26,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:24:36,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:24:36,092 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-24 10:24:36,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:36 BoogieIcfgContainer [2021-10-24 10:24:36,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:24:36,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:24:36,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:24:36,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:24:36,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:24:26" (1/3) ... [2021-10-24 10:24:36,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22698d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:36, skipping insertion in model container [2021-10-24 10:24:36,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:24:26" (2/3) ... [2021-10-24 10:24:36,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22698d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:24:36, skipping insertion in model container [2021-10-24 10:24:36,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:36" (3/3) ... [2021-10-24 10:24:36,103 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c [2021-10-24 10:24:36,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:24:36,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:24:36,173 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:24:36,182 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, mAutomataTypeConcurrency=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 [2021-10-24 10:24:36,184 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:24:36,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-10-24 10:24:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:24:36,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:36,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:36,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:24:36,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:36,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1546774585, now seen corresponding path program 1 times [2021-10-24 10:24:36,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:24:36,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933122172] [2021-10-24 10:24:36,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:36,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:24:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:36,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:24:36,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933122172] [2021-10-24 10:24:36,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933122172] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:36,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:36,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:24:36,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44264131] [2021-10-24 10:24:36,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:24:36,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:24:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:24:36,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:36,626 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-24 10:24:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:24:56,650 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions. [2021-10-24 10:24:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:24:56,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-10-24 10:24:56,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:24:56,660 INFO L225 Difference]: With dead ends: 55 [2021-10-24 10:24:56,660 INFO L226 Difference]: Without dead ends: 25 [2021-10-24 10:24:56,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:24:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-10-24 10:24:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-10-24 10:24:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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) [2021-10-24 10:24:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2021-10-24 10:24:56,689 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 10 [2021-10-24 10:24:56,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:24:56,690 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2021-10-24 10:24:56,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-10-24 10:24:56,691 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2021-10-24 10:24:56,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:24:56,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:24:56,692 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:24:56,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:24:56,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:24:56,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:24:56,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1365670109, now seen corresponding path program 1 times [2021-10-24 10:24:56,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:24:56,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221875602] [2021-10-24 10:24:56,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:24:56,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:24:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:24:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:24:56,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:24:56,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221875602] [2021-10-24 10:24:56,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221875602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:24:56,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:24:56,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:24:56,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115319954] [2021-10-24 10:24:56,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:24:56,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:24:56,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:24:56,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:24:56,890 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:01,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:01,431 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2021-10-24 10:25:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:01,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 10:25:01,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:01,433 INFO L225 Difference]: With dead ends: 45 [2021-10-24 10:25:01,433 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:25:01,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:01,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:25:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:25:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:25:01,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-24 10:25:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:01,435 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:25:01,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:25:01,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:25:01,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:25:01,437 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:25:01,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:25:01,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:25:01,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:25:01,476 INFO L857 garLoopResultBuilder]: For program point L97(lines 97 106) no Hoare annotation was computed. [2021-10-24 10:25:01,476 INFO L853 garLoopResultBuilder]: At program point L122(lines 25 145) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-10-24 10:25:01,477 INFO L853 garLoopResultBuilder]: At program point L56(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-10-24 10:25:01,477 INFO L857 garLoopResultBuilder]: For program point L23(lines 23 150) no Hoare annotation was computed. [2021-10-24 10:25:01,477 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 85) no Hoare annotation was computed. [2021-10-24 10:25:01,477 INFO L853 garLoopResultBuilder]: At program point L44(lines 26 114) the Hoare annotation is: (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse1 (- 3)) .cse2) 4294967296))))))) [2021-10-24 10:25:01,477 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 112) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 113) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:25:01,478 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 143) no Hoare annotation was computed. [2021-10-24 10:25:01,479 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 84) no Hoare annotation was computed. [2021-10-24 10:25:01,479 INFO L857 garLoopResultBuilder]: For program point L25(lines 25 145) no Hoare annotation was computed. [2021-10-24 10:25:01,479 INFO L860 garLoopResultBuilder]: At program point L149(lines 16 151) the Hoare annotation is: true [2021-10-24 10:25:01,479 INFO L860 garLoopResultBuilder]: At program point L83(lines 17 151) the Hoare annotation is: true [2021-10-24 10:25:01,479 INFO L857 garLoopResultBuilder]: For program point L117(lines 117 144) no Hoare annotation was computed. [2021-10-24 10:25:01,479 INFO L860 garLoopResultBuilder]: At program point L142(lines 25 145) the Hoare annotation is: true [2021-10-24 10:25:01,480 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 86) no Hoare annotation was computed. [2021-10-24 10:25:01,480 INFO L860 garLoopResultBuilder]: At program point L134(lines 25 145) the Hoare annotation is: true [2021-10-24 10:25:01,484 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:25:01,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:25:01 BoogieIcfgContainer [2021-10-24 10:25:01,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:25:01,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:25:01,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:25:01,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:25:01,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:24:36" (3/4) ... [2021-10-24 10:25:01,504 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:25:01,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-24 10:25:01,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-24 10:25:01,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:25:01,515 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:25:01,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:25:01,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:25:01,572 INFO L168 Benchmark]: Toolchain (without parser) took 35047.22 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 51.4 MB in the beginning and 88.1 MB in the end (delta: -36.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,573 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 161.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.94 ms. Allocated memory is still 92.3 MB. Free memory was 51.2 MB in the beginning and 40.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.52 ms. Allocated memory is still 92.3 MB. Free memory was 40.5 MB in the beginning and 38.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,574 INFO L168 Benchmark]: Boogie Preprocessor took 22.62 ms. Allocated memory is still 92.3 MB. Free memory was 38.8 MB in the beginning and 37.9 MB in the end (delta: 940.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:01,575 INFO L168 Benchmark]: RCFGBuilder took 9274.98 ms. Allocated memory is still 92.3 MB. Free memory was 37.7 MB in the beginning and 63.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,575 INFO L168 Benchmark]: TraceAbstraction took 25403.46 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 41.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,576 INFO L168 Benchmark]: Witness Printer took 70.43 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 88.1 MB in the end (delta: -46.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:01,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 161.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.94 ms. Allocated memory is still 92.3 MB. Free memory was 51.2 MB in the beginning and 40.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.52 ms. Allocated memory is still 92.3 MB. Free memory was 40.5 MB in the beginning and 38.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.62 ms. Allocated memory is still 92.3 MB. Free memory was 38.8 MB in the beginning and 37.9 MB in the end (delta: 940.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 9274.98 ms. Allocated memory is still 92.3 MB. Free memory was 37.7 MB in the beginning and 63.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25403.46 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 41.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. * Witness Printer took 70.43 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 88.1 MB in the end (delta: -46.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25313.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.3ms, AutomataDifference: 24601.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 37.4ms, InitialAbstractionConstructionTime: 12.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 14 SDslu, 66 SDs, 0 SdLazy, 37 SolverSat, 5 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 22197.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 17 NumberOfFragments, 127 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 13.8ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 16.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 9.3ms SsaConstructionTime, 123.7ms SatisfiabilityAnalysisTime, 364.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * ((main__x + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3 + main__x / 4294967296 * -4294967296) / 4294967296) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-24 10:25:01,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_840ef60e-32b9-4174-872d-e4c22035b1a8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...