./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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 aafe64e6797986c8e2640a7b7069fb043af4b00a .................................................................................................................................................................................................................................................................................................................................................................... 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 02:22:46,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:46,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:46,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:46,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:46,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:46,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:46,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:46,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:46,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:46,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:46,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:46,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:46,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:46,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:46,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:46,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:46,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:46,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:46,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:46,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:46,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:46,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:46,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:46,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:46,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:46,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:46,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:46,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:46,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:46,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:46,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:46,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:46,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:46,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:46,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:46,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:46,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:46,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:46,595 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:46,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:46,597 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:22:46,636 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:46,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:46,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:46,637 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:46,638 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:46,638 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:46,638 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:46,638 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:46,639 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:46,639 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:46,639 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:46,639 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:46,640 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:46,640 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:46,640 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:46,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:46,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:46,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:46,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:46,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:46,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:46,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:46,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:46,643 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:46,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:46,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:46,644 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:46,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:46,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:46,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:46,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:46,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:46,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:46,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:46,646 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:46,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:46,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:46,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:46,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:46,647 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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aafe64e6797986c8e2640a7b7069fb043af4b00a [2021-10-11 02:22:46,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:46,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:46,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:46,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:46,921 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:46,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2021-10-11 02:22:47,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/data/942b53abe/84f60a3d6de04d24a364338a6001b7d2/FLAGc8bad10cd [2021-10-11 02:22:47,435 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:47,443 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c [2021-10-11 02:22:47,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/data/942b53abe/84f60a3d6de04d24a364338a6001b7d2/FLAGc8bad10cd [2021-10-11 02:22:47,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/data/942b53abe/84f60a3d6de04d24a364338a6001b7d2 [2021-10-11 02:22:47,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:47,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:47,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:47,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:47,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:47,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:47" (1/1) ... [2021-10-11 02:22:47,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8abc21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:47, skipping insertion in model container [2021-10-11 02:22:47,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:47" (1/1) ... [2021-10-11 02:22:47,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:47,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:47,995 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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2021-10-11 02:22:48,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:48,073 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:48,090 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_d950eb65-38c6-4cdb-b61a-596c8b4f5970/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound1.c[458,471] [2021-10-11 02:22:48,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:48,129 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:48,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48 WrapperNode [2021-10-11 02:22:48,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:48,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:48,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:48,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:48,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:48,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:48,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:48,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:48,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... [2021-10-11 02:22:48,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:48,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:48,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:48,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:48,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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 02:22:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:22:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:48,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:48,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:48,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:48,639 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:22:48,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48 BoogieIcfgContainer [2021-10-11 02:22:48,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:48,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:48,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:48,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:48,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:47" (1/3) ... [2021-10-11 02:22:48,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:48, skipping insertion in model container [2021-10-11 02:22:48,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:48" (2/3) ... [2021-10-11 02:22:48,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5136f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:48, skipping insertion in model container [2021-10-11 02:22:48,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48" (3/3) ... [2021-10-11 02:22:48,657 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_unwindbound1.c [2021-10-11 02:22:48,672 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:48,678 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:22:48,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:22:48,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:48,710 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:48,710 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:48,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:48,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:48,711 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:48,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:48,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:48,722 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-10-11 02:22:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:22:48,727 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:48,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:22:48,728 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:48,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:48,733 INFO L82 PathProgramCache]: Analyzing trace with hash 71331668, now seen corresponding path program 1 times [2021-10-11 02:22:48,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:22:48,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014455418] [2021-10-11 02:22:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:22:48,829 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:22:48,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034731924] [2021-10-11 02:22:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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 02:22:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:48,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:22:48,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:48,975 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 02:22:48,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:22:49,077 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 02:22:49,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014455418] [2021-10-11 02:22:49,078 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:22:49,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034731924] [2021-10-11 02:22:49,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:49,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:22:49,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149799334] [2021-10-11 02:22:49,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:22:49,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:22:49,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:22:49,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:22:49,114 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2021-10-11 02:23:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:02,378 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2021-10-11 02:23:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:23:02,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:23:02,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:02,389 INFO L225 Difference]: With dead ends: 45 [2021-10-11 02:23:02,390 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 02:23:02,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 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 02:23:02,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 02:23:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-11 02:23:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 02:23:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-10-11 02:23:02,439 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2021-10-11 02:23:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:02,440 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-10-11 02:23:02,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:23:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-11 02:23:02,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:23:02,441 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:02,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2021-10-11 02:23:02,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:23:02,655 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:02,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:02,656 INFO L82 PathProgramCache]: Analyzing trace with hash 478489772, now seen corresponding path program 1 times [2021-10-11 02:23:02,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:02,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239569565] [2021-10-11 02:23:02,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:02,675 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:23:02,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910889203] [2021-10-11 02:23:02,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/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 02:23:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:02,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:23:02,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:23:02,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:23:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:23:02,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239569565] [2021-10-11 02:23:02,825 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:23:02,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910889203] [2021-10-11 02:23:02,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1049260772] [2021-10-11 02:23:02,849 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-11 02:23:02,849 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:23:02,854 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:23:02,861 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:23:02,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:23:03,299 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:23:05,512 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2021-10-11 02:23:05,647 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2021-10-11 02:23:08,098 WARN L197 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-10-11 02:23:08,104 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:23:08,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:23:08,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-11 02:23:08,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886282892] [2021-10-11 02:23:08,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:08,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:08,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:08,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:08,112 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2021-10-11 02:23:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:08,150 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-11 02:23:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:08,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:23:08,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:08,152 INFO L225 Difference]: With dead ends: 19 [2021-10-11 02:23:08,152 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:23:08,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:23:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:23:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:23:08,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:23:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:23:08,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-11 02:23:08,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:08,162 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:23:08,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:08,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:23:08,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:23:08,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:23:08,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:23:08,434 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:23:08,434 INFO L262 CegarLoopResult]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2021-10-11 02:23:08,434 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:23:08,435 INFO L258 CegarLoopResult]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0) (<= 0 ~counter~0)) (and (<= 1 ~counter~0) (= (* 6 ULTIMATE.start_main_~x~0) (+ (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) ULTIMATE.start_main_~y~0 (* 3 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-10-11 02:23:08,435 INFO L262 CegarLoopResult]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2021-10-11 02:23:08,435 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:23:08,435 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2021-10-11 02:23:08,436 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:23:08,436 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2021-10-11 02:23:08,436 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:23:08,436 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (<= 1 ~counter~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0)) [2021-10-11 02:23:08,436 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2021-10-11 02:23:08,437 INFO L258 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2021-10-11 02:23:08,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:08 BoogieIcfgContainer [2021-10-11 02:23:08,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:08,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:08,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:08,455 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:08,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:48" (3/4) ... [2021-10-11 02:23:08,458 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:23:08,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:23:08,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:23:08,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:23:08,485 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:08,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d950eb65-38c6-4cdb-b61a-596c8b4f5970/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:08,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:08,523 INFO L168 Benchmark]: Toolchain (without parser) took 20705.98 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 59.5 MB in the beginning and 62.0 MB in the end (delta: -2.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,524 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 64.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:08,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.09 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 59.5 MB in the beginning and 94.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 92.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,525 INFO L168 Benchmark]: Boogie Preprocessor took 50.18 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:08,526 INFO L168 Benchmark]: RCFGBuilder took 415.76 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 77.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,527 INFO L168 Benchmark]: TraceAbstraction took 19809.06 ms. Allocated memory is still 117.4 MB. Free memory was 76.6 MB in the beginning and 64.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,527 INFO L168 Benchmark]: Witness Printer took 67.72 ms. Allocated memory is still 117.4 MB. Free memory was 64.1 MB in the beginning and 62.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:08,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 64.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.09 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 59.5 MB in the beginning and 94.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.47 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 92.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.18 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 415.76 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 77.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19809.06 ms. Allocated memory is still 117.4 MB. Free memory was 76.6 MB in the beginning and 64.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 67.72 ms. Allocated memory is still 117.4 MB. Free memory was 64.1 MB in the beginning and 62.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: 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: 9]: Loop Invariant Derived loop invariant: !(0 == cond) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((1 <= counter && 1 == cond) && x == 0) && y == 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((x == 0 && y == 0) && 0 <= counter) || ((1 <= counter && 6 * x == 2 * (y * y * y) + y + 3 * (y * y)) && 1 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.6s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 44 SDslu, 30 SDs, 0 SdLazy, 27 SolverSat, 17 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 13.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 52 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 4 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 18/20 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...