./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.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_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/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_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/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_330db01b-79a6-4167-b331-ac3e6be86aab/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 ed46dd72b47544e751c43723d7d519a92e121aab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:20:44,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:44,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:45,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:45,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:45,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:45,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:45,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:45,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:45,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:45,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:45,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:45,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:45,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:45,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:45,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:45,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:45,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:45,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:45,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:45,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:45,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:45,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:45,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:45,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:45,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:45,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:45,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:45,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:45,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:45,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:45,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:45,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:45,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:45,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:45,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:45,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:45,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:45,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:45,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:45,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:45,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:45,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:45,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:45,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:45,162 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:45,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:45,162 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:45,163 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:45,163 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:45,169 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:45,170 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:45,171 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:45,171 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:45,171 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:45,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:45,172 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:45,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:45,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:45,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:45,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:45,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:45,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:45,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:45,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:45,174 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:45,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:45,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:45,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:45,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:45,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:45,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:45,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:45,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:45,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:45,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:45,179 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:45,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:45,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:45,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:45,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:45,180 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_330db01b-79a6-4167-b331-ac3e6be86aab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed46dd72b47544e751c43723d7d519a92e121aab [2021-10-11 02:20:45,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:45,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:45,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:45,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:45,565 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:45,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-10-11 02:20:45,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/data/c1015bebc/dc4162c766c54283bb53320d3b7b82b1/FLAG41ccf8cd4 [2021-10-11 02:20:46,148 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:46,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c [2021-10-11 02:20:46,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/data/c1015bebc/dc4162c766c54283bb53320d3b7b82b1/FLAG41ccf8cd4 [2021-10-11 02:20:46,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/data/c1015bebc/dc4162c766c54283bb53320d3b7b82b1 [2021-10-11 02:20:46,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:46,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:46,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:46,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:46,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:46,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16e1690e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46, skipping insertion in model container [2021-10-11 02:20:46,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:46,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:46,784 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_330db01b-79a6-4167-b331-ac3e6be86aab/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2021-10-11 02:20:46,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:46,855 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:46,873 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_330db01b-79a6-4167-b331-ac3e6be86aab/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound2.c[525,538] [2021-10-11 02:20:46,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:46,938 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:46,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46 WrapperNode [2021-10-11 02:20:46,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:46,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:46,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:46,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:46,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:46,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:46,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:46,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:46,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:46,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:47,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:47,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:47,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:47,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... [2021-10-11 02:20:47,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:47,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:47,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:47,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:47,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/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 02:20:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:47,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:47,600 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-11 02:20:47,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:47 BoogieIcfgContainer [2021-10-11 02:20:47,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:47,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:47,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:47,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:47,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:46" (1/3) ... [2021-10-11 02:20:47,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e32db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:47, skipping insertion in model container [2021-10-11 02:20:47,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:46" (2/3) ... [2021-10-11 02:20:47,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e32db24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:47, skipping insertion in model container [2021-10-11 02:20:47,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:47" (3/3) ... [2021-10-11 02:20:47,611 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound2.c [2021-10-11 02:20:47,624 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:47,632 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2021-10-11 02:20:47,643 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-11 02:20:47,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:47,681 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:47,681 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:47,681 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:47,681 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:47,682 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:47,682 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:47,683 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2021-10-11 02:20:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:20:47,709 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:47,710 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:20:47,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:47,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:47,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1143465249, now seen corresponding path program 1 times [2021-10-11 02:20:47,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:47,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152790094] [2021-10-11 02:20:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:47,932 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 02:20:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152790094] [2021-10-11 02:20:47,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:47,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:20:47,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544782282] [2021-10-11 02:20:47,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:20:47,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:47,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:20:47,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:47,959 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2021-10-11 02:20:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:47,976 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2021-10-11 02:20:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:20:47,977 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 02:20:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:47,985 INFO L225 Difference]: With dead ends: 84 [2021-10-11 02:20:47,986 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 02:20:47,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:20:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 02:20:48,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-11 02:20:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-10-11 02:20:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2021-10-11 02:20:48,023 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 6 [2021-10-11 02:20:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:48,023 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2021-10-11 02:20:48,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:20:48,024 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2021-10-11 02:20:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:20:48,024 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:48,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:48,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:20:48,025 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:48,026 INFO L82 PathProgramCache]: Analyzing trace with hash 651938503, now seen corresponding path program 1 times [2021-10-11 02:20:48,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:48,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401998368] [2021-10-11 02:20:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:48,093 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 02:20:48,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401998368] [2021-10-11 02:20:48,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:48,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:20:48,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989318507] [2021-10-11 02:20:48,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:20:48,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:48,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:20:48,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:48,097 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 4 states. [2021-10-11 02:20:48,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:48,124 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2021-10-11 02:20:48,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:20:48,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:20:48,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:48,126 INFO L225 Difference]: With dead ends: 82 [2021-10-11 02:20:48,126 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 02:20:48,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 02:20:48,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-11 02:20:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-10-11 02:20:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-10-11 02:20:48,135 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 7 [2021-10-11 02:20:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:48,136 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-10-11 02:20:48,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:20:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-10-11 02:20:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:20:48,137 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:48,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:48,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:20:48,137 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:48,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:48,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1215948133, now seen corresponding path program 1 times [2021-10-11 02:20:48,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:48,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330203564] [2021-10-11 02:20:48,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:48,408 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 02:20:48,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330203564] [2021-10-11 02:20:48,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:48,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:20:48,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710994981] [2021-10-11 02:20:48,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:20:48,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:48,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:20:48,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:48,426 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2021-10-11 02:21:01,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:01,695 INFO L93 Difference]: Finished difference Result 123 states and 131 transitions. [2021-10-11 02:21:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:01,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2021-10-11 02:21:01,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:01,698 INFO L225 Difference]: With dead ends: 123 [2021-10-11 02:21:01,698 INFO L226 Difference]: Without dead ends: 85 [2021-10-11 02:21:01,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:21:01,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-11 02:21:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 59. [2021-10-11 02:21:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-11 02:21:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2021-10-11 02:21:01,714 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 8 [2021-10-11 02:21:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:01,715 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2021-10-11 02:21:01,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:01,715 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2021-10-11 02:21:01,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:21:01,716 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:01,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:01,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:21:01,717 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:01,718 INFO L82 PathProgramCache]: Analyzing trace with hash 960330495, now seen corresponding path program 1 times [2021-10-11 02:21:01,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:01,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551367361] [2021-10-11 02:21:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:01,733 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:01,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990593416] [2021-10-11 02:21:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/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 02:21:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:01,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:01,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:01,882 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 02:21:01,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:01,916 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 02:21:01,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551367361] [2021-10-11 02:21:01,917 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:01,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990593416] [2021-10-11 02:21:01,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:01,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-11 02:21:01,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146700038] [2021-10-11 02:21:01,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:01,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:01,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:01,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:01,920 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand 5 states. [2021-10-11 02:21:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:01,971 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2021-10-11 02:21:01,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:21:01,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:21:01,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:01,973 INFO L225 Difference]: With dead ends: 72 [2021-10-11 02:21:01,975 INFO L226 Difference]: Without dead ends: 60 [2021-10-11 02:21:01,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-11 02:21:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2021-10-11 02:21:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-11 02:21:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2021-10-11 02:21:01,994 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 9 [2021-10-11 02:21:01,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:01,995 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2021-10-11 02:21:01,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:01,995 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2021-10-11 02:21:01,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:21:01,997 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:01,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:02,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:02,225 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:02,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:02,226 INFO L82 PathProgramCache]: Analyzing trace with hash -294894978, now seen corresponding path program 1 times [2021-10-11 02:21:02,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:02,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503996066] [2021-10-11 02:21:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:02,243 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:02,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309395825] [2021-10-11 02:21:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/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 02:21:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:02,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:21:02,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:02,362 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 02:21:02,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:04,496 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~q~0 Int)) (= (mod (+ (* c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~p~0) (* c_ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~q~0)) 4294967296) (mod (* c_ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) 4294967296))) is different from true [2021-10-11 02:21:04,704 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 02:21:04,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503996066] [2021-10-11 02:21:04,704 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:04,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309395825] [2021-10-11 02:21:04,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:04,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:04,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451648355] [2021-10-11 02:21:04,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:04,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:04,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:04,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2021-10-11 02:21:04,709 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 6 states. [2021-10-11 02:21:05,609 WARN L197 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2021-10-11 02:21:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:18,608 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2021-10-11 02:21:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:21:18,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2021-10-11 02:21:18,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:18,611 INFO L225 Difference]: With dead ends: 90 [2021-10-11 02:21:18,611 INFO L226 Difference]: Without dead ends: 82 [2021-10-11 02:21:18,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=20, Invalid=25, Unknown=1, NotChecked=10, Total=56 [2021-10-11 02:21:18,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-11 02:21:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2021-10-11 02:21:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-11 02:21:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2021-10-11 02:21:18,641 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 10 [2021-10-11 02:21:18,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:18,641 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2021-10-11 02:21:18,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:18,642 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2021-10-11 02:21:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:21:18,644 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:18,645 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:18,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:18,873 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:18,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash 975471712, now seen corresponding path program 1 times [2021-10-11 02:21:18,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:18,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257790650] [2021-10-11 02:21:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:18,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:18,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257790650] [2021-10-11 02:21:18,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732703887] [2021-10-11 02:21:18,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:19,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:19,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:19,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:19,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1648713088] [2021-10-11 02:21:19,110 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-11 02:21:19,111 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:21:19,115 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:21:19,120 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:21:19,121 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:21:19,258 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-11 02:21:19,874 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:21:20,085 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-10-11 02:21:21,171 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 117 DAG size of output: 97 [2021-10-11 02:21:21,402 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2021-10-11 02:21:21,737 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-10-11 02:21:21,738 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:21,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:21:21,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2021-10-11 02:21:21,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549593804] [2021-10-11 02:21:21,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:21:21,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:21,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:21:21,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:21:21,740 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 7 states. [2021-10-11 02:21:21,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:21,775 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2021-10-11 02:21:21,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:21,776 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 02:21:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:21,777 INFO L225 Difference]: With dead ends: 125 [2021-10-11 02:21:21,778 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 02:21:21,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:21:21,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 02:21:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-11 02:21:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 02:21:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2021-10-11 02:21:21,788 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 10 [2021-10-11 02:21:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:21,789 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2021-10-11 02:21:21,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:21:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2021-10-11 02:21:21,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:21:21,790 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:21,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:22,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:22,010 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:22,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:22,010 INFO L82 PathProgramCache]: Analyzing trace with hash 223646754, now seen corresponding path program 1 times [2021-10-11 02:21:22,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:22,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091568721] [2021-10-11 02:21:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:22,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091568721] [2021-10-11 02:21:22,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821540418] [2021-10-11 02:21:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:21:22,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:22,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:22,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:21:22,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6] total 7 [2021-10-11 02:21:22,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533409654] [2021-10-11 02:21:22,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:22,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:22,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:22,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:22,264 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand 6 states. [2021-10-11 02:21:22,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:22,316 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2021-10-11 02:21:22,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:22,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-10-11 02:21:22,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:22,319 INFO L225 Difference]: With dead ends: 88 [2021-10-11 02:21:22,319 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:21:22,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:21:22,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:21:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 02:21:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 02:21:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2021-10-11 02:21:22,344 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 11 [2021-10-11 02:21:22,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:22,344 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2021-10-11 02:21:22,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2021-10-11 02:21:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:21:22,346 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:22,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:22,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:22,570 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:22,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:22,570 INFO L82 PathProgramCache]: Analyzing trace with hash 73924353, now seen corresponding path program 1 times [2021-10-11 02:21:22,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:22,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183790932] [2021-10-11 02:21:22,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:22,583 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:22,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643317274] [2021-10-11 02:21:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:22,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 02:21:22,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:22,747 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 02:21:22,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:22,946 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 02:21:22,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183790932] [2021-10-11 02:21:22,946 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:22,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643317274] [2021-10-11 02:21:22,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:22,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:22,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925128201] [2021-10-11 02:21:22,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:22,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:22,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:22,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:22,950 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2021-10-11 02:21:33,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:33,952 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2021-10-11 02:21:33,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:21:33,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-10-11 02:21:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:33,954 INFO L225 Difference]: With dead ends: 44 [2021-10-11 02:21:33,954 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 02:21:33,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:33,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 02:21:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2021-10-11 02:21:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:21:33,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-11 02:21:33,959 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 12 [2021-10-11 02:21:33,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:33,960 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-11 02:21:33,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:33,960 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-11 02:21:33,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:21:33,961 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:33,961 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:34,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-11 02:21:34,164 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:34,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1656868264, now seen corresponding path program 1 times [2021-10-11 02:21:34,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:34,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43523338] [2021-10-11 02:21:34,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:34,186 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:34,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870132933] [2021-10-11 02:21:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:34,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:21:34,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:34,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:37,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:37,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43523338] [2021-10-11 02:21:37,068 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:37,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870132933] [2021-10-11 02:21:37,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:37,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:37,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684538245] [2021-10-11 02:21:37,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:37,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:37,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:37,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-10-11 02:21:37,070 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand 6 states. [2021-10-11 02:21:37,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:37,655 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-10-11 02:21:37,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:21:37,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-10-11 02:21:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:37,656 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:21:37,656 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 02:21:37,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=23, Invalid=32, Unknown=1, NotChecked=0, Total=56 [2021-10-11 02:21:37,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 02:21:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-11 02:21:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:21:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-10-11 02:21:37,660 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 12 [2021-10-11 02:21:37,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:37,660 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-10-11 02:21:37,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-10-11 02:21:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:21:37,660 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:37,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:37,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:37,861 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:37,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:37,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1182623995, now seen corresponding path program 1 times [2021-10-11 02:21:37,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:37,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724179462] [2021-10-11 02:21:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:37,885 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:21:37,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53780980] [2021-10-11 02:21:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:21:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:37,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:21:37,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:38,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:38,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:21:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:21:38,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724179462] [2021-10-11 02:21:38,066 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:21:38,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53780980] [2021-10-11 02:21:38,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:38,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-11 02:21:38,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042224531] [2021-10-11 02:21:38,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:21:38,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:21:38,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:21:38,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:21:38,069 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 6 states. [2021-10-11 02:21:40,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:40,880 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-10-11 02:21:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:21:40,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-10-11 02:21:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:40,882 INFO L225 Difference]: With dead ends: 32 [2021-10-11 02:21:40,882 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:21:40,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:21:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:21:40,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:21:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:21:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:21:40,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-11 02:21:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:40,883 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:21:40,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:21:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:21:40,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:21:41,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-11 02:21:41,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:21:41,493 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 21 [2021-10-11 02:21:41,832 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,832 INFO L262 CegarLoopResult]: For program point L52-2(lines 20 61) no Hoare annotation was computed. [2021-10-11 02:21:41,832 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,832 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:21:41,832 INFO L262 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,832 INFO L258 CegarLoopResult]: At program point L12-2(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~h~0 0) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,833 INFO L262 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,833 INFO L258 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,833 INFO L262 CegarLoopResult]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,833 INFO L258 CegarLoopResult]: At program point L12-8(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,833 INFO L262 CegarLoopResult]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,833 INFO L258 CegarLoopResult]: At program point L12-11(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,833 INFO L262 CegarLoopResult]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,833 INFO L258 CegarLoopResult]: At program point L12-14(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,833 INFO L262 CegarLoopResult]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,834 INFO L258 CegarLoopResult]: At program point L12-17(lines 46 47) the Hoare annotation is: (and (= ULTIMATE.start_main_~q~0 1) (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= (+ (* 4294967296 (div (+ ULTIMATE.start_main_~q~0 (* ULTIMATE.start_main_~p~0 2)) 4294967296)) ULTIMATE.start_main_~r~0 (* 4294967296 (div ULTIMATE.start_main_~q~0 4294967296)) 1) (+ ULTIMATE.start_main_~q~0 (* 4294967296 (div ULTIMATE.start_main_~r~0 4294967296)))) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,834 INFO L262 CegarLoopResult]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,834 INFO L258 CegarLoopResult]: At program point L12-20(lines 11 17) the Hoare annotation is: (and (= ULTIMATE.start_main_~h~0 0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,834 INFO L262 CegarLoopResult]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,834 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,834 INFO L258 CegarLoopResult]: At program point L12-23(lines 11 17) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~h~0 0) (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823) (<= 2 ~counter~0) (= ULTIMATE.start_main_~p~0 0)) [2021-10-11 02:21:41,834 INFO L262 CegarLoopResult]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-10-11 02:21:41,834 INFO L265 CegarLoopResult]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-10-11 02:21:41,834 INFO L262 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L38(lines 38 56) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 56) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-10-11 02:21:41,835 INFO L258 CegarLoopResult]: At program point L30-3(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~h~0 0)) (.cse1 (< (mod ULTIMATE.start_main_~n~0 4294967296) 1073741823)) (.cse2 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~r~0)) (.cse3 (= ULTIMATE.start_main_~p~0 0))) (or (and (<= 1 ~counter~0) .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_main_~q~0 1) .cse0 .cse1 .cse2 (<= 0 ~counter~0) .cse3))) [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,836 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-11 02:21:41,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:41 BoogieIcfgContainer [2021-10-11 02:21:41,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:41,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:41,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:41,876 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:41,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:47" (3/4) ... [2021-10-11 02:21:41,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:21:41,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-11 02:21:41,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:21:41,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:21:41,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:41,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330db01b-79a6-4167-b331-ac3e6be86aab/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:41,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:41,957 INFO L168 Benchmark]: Toolchain (without parser) took 55450.78 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 89.0 MB in the beginning and 94.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,958 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:41,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.23 ms. Allocated memory is still 119.5 MB. Free memory was 89.0 MB in the beginning and 93.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.51 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 91.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,959 INFO L168 Benchmark]: Boogie Preprocessor took 49.64 ms. Allocated memory is still 119.5 MB. Free memory was 91.4 MB in the beginning and 90.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:41,959 INFO L168 Benchmark]: RCFGBuilder took 571.17 ms. Allocated memory is still 119.5 MB. Free memory was 90.0 MB in the beginning and 65.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,960 INFO L168 Benchmark]: TraceAbstraction took 54271.95 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 65.2 MB in the beginning and 98.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,960 INFO L168 Benchmark]: Witness Printer took 80.58 ms. Allocated memory is still 155.2 MB. Free memory was 98.5 MB in the beginning and 94.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:41,963 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory is still 31.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.23 ms. Allocated memory is still 119.5 MB. Free memory was 89.0 MB in the beginning and 93.3 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.51 ms. Allocated memory is still 119.5 MB. Free memory was 93.3 MB in the beginning and 91.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.64 ms. Allocated memory is still 119.5 MB. Free memory was 91.4 MB in the beginning and 90.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 571.17 ms. Allocated memory is still 119.5 MB. Free memory was 90.0 MB in the beginning and 65.8 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54271.95 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 65.2 MB in the beginning and 98.5 MB in the end (delta: -33.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 16.1 GB. * Witness Printer took 80.58 ms. Allocated memory is still 155.2 MB. Free memory was 98.5 MB in the beginning and 94.3 MB in the end (delta: 4.2 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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 9 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((q == 1 && !(0 == cond)) && h == 0) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((!(0 == cond) && h == 0) && n % 4294967296 < 1073741823) && 2 <= counter) && p == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((q == 1 && h == 0) && 1 == cond) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((1 <= counter && h == 0) && n % 4294967296 < 1073741823) && n == r) && p == 0) || (((((q == 1 && h == 0) && n % 4294967296 < 1073741823) && n == r) && 0 <= counter) && p == 0) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((q == 1 && h == 0) && 1 == cond) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((q == 1 && h == 0) && 1 == cond) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((h == 0 && 1 == cond) && n % 4294967296 < 1073741823) && n == r) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((q == 1 && h == 0) && 1 == cond) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((q == 1 && h == 0) && 1 == cond) && n == r) && 4294967296 * ((q + p * 2) / 4294967296) + r + 4294967296 * (q / 4294967296) + 1 <= q + 4294967296 * (r / 4294967296)) && 2 <= counter) && p == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 53.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 41.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 321 SDtfs, 225 SDslu, 491 SDs, 0 SdLazy, 242 SolverSat, 123 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 38.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 43 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 21 NumberOfFragments, 346 HoareAnnotationTreeSize, 10 FomulaSimplifications, 118 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 266 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 179 ConstructedInterpolants, 25 QuantifiedInterpolants, 20953 SizeOfPredicates, 35 NumberOfNonLiveVariables, 499 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 19/27 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...