./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8 --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 b4d247efd04e3e4cb2503f723a85cffc04db470c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8 --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 b4d247efd04e3e4cb2503f723a85cffc04db470c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:58:29,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:58:29,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:58:29,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:58:29,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:58:29,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:58:29,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:58:29,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:58:29,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:58:29,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:58:29,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:58:29,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:58:29,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:58:29,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:58:29,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:58:29,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:58:29,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:58:29,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:58:29,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:58:29,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:58:29,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:58:29,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:58:29,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:58:29,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:58:29,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:58:29,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:58:29,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:58:29,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:58:29,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:58:29,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:58:29,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:58:29,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:58:29,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:58:29,172 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:58:29,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:58:29,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:58:29,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:58:29,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:58:29,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:58:29,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:58:29,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:58:29,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:58:29,213 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:58:29,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:58:29,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:58:29,215 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:58:29,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:58:29,216 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:58:29,216 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:58:29,217 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:58:29,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:58:29,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:58:29,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:58:29,219 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:58:29,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:58:29,220 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:58:29,220 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:58:29,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:58:29,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:58:29,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:58:29,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:58:29,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:58:29,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:58:29,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:58:29,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:58:29,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:58:29,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:58:29,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:58:29,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:58:29,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:58:29,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:58:29,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:58:29,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:29,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:58:29,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:58:29,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:58:29,248 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:58:29,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:58:29,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:58:29,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:58:29,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:58:29,251 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_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d247efd04e3e4cb2503f723a85cffc04db470c [2021-10-13 06:58:29,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:58:29,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:58:29,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:58:29,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:58:29,623 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:58:29,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2021-10-13 06:58:29,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/64ba2cbb7/09a95446d3b040e0a9e6c5963a6cc567/FLAG00dbecedb [2021-10-13 06:58:30,295 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:58:30,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2021-10-13 06:58:30,316 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/64ba2cbb7/09a95446d3b040e0a9e6c5963a6cc567/FLAG00dbecedb [2021-10-13 06:58:30,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/64ba2cbb7/09a95446d3b040e0a9e6c5963a6cc567 [2021-10-13 06:58:30,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:58:30,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:58:30,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:30,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:58:30,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:58:30,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:30,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d261617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30, skipping insertion in model container [2021-10-13 06:58:30,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:30,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:58:30,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:58:30,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2021-10-13 06:58:30,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:30,928 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:58:30,943 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2021-10-13 06:58:30,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:30,978 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:58:30,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30 WrapperNode [2021-10-13 06:58:30,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:30,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:30,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:58:30,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:58:30,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:30,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:31,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:58:31,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:58:31,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:58:31,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:58:31,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:58:31,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:58:31,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:58:31,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (1/1) ... [2021-10-13 06:58:31,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:31,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:58:31,106 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:58:31,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:58:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 06:58:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:58:31,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:58:31,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:58:33,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:58:33,746 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-13 06:58:33,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:33 BoogieIcfgContainer [2021-10-13 06:58:33,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:58:33,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:58:33,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:58:33,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:58:33,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:58:30" (1/3) ... [2021-10-13 06:58:33,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36160ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:33, skipping insertion in model container [2021-10-13 06:58:33,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:30" (2/3) ... [2021-10-13 06:58:33,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36160ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:33, skipping insertion in model container [2021-10-13 06:58:33,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:33" (3/3) ... [2021-10-13 06:58:33,766 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound2.c [2021-10-13 06:58:33,772 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:58:33,772 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-13 06:58:33,822 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:58:33,830 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:58:33,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-13 06:58:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 06:58:33,851 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:33,851 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 06:58:33,852 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:33,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:33,858 INFO L82 PathProgramCache]: Analyzing trace with hash 188707214, now seen corresponding path program 1 times [2021-10-13 06:58:33,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:58:33,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077201530] [2021-10-13 06:58:33,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:33,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:58:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:34,081 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:58:34,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077201530] [2021-10-13 06:58:34,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077201530] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:58:34,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:58:34,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 06:58:34,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303129401] [2021-10-13 06:58:34,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:58:34,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:58:34,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:58:34,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:58:34,134 INFO L87 Difference]: Start difference. First operand has 42 states, 32 states have (on average 1.6875) internal successors, (54), 41 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:58:34,172 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2021-10-13 06:58:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:58:34,173 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 06:58:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:58:34,183 INFO L225 Difference]: With dead ends: 81 [2021-10-13 06:58:34,183 INFO L226 Difference]: Without dead ends: 40 [2021-10-13 06:58:34,187 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:58:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-13 06:58:34,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-13 06:58:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 39 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2021-10-13 06:58:34,228 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 5 [2021-10-13 06:58:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:58:34,229 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2021-10-13 06:58:34,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2021-10-13 06:58:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 06:58:34,230 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:34,230 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 06:58:34,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 06:58:34,231 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:34,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1426196737, now seen corresponding path program 1 times [2021-10-13 06:58:34,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:58:34,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427349413] [2021-10-13 06:58:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:34,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:58:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:34,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:58:34,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427349413] [2021-10-13 06:58:34,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427349413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 06:58:34,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:58:34,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 06:58:34,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257656552] [2021-10-13 06:58:34,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:58:34,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:58:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:58:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:58:34,650 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:41,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:58:41,078 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2021-10-13 06:58:41,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 06:58:41,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 06:58:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:58:41,085 INFO L225 Difference]: With dead ends: 115 [2021-10-13 06:58:41,085 INFO L226 Difference]: Without dead ends: 78 [2021-10-13 06:58:41,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 06:58:41,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-13 06:58:41,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 55. [2021-10-13 06:58:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:41,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-10-13 06:58:41,112 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 6 [2021-10-13 06:58:41,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:58:41,113 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-10-13 06:58:41,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-10-13 06:58:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 06:58:41,114 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:41,115 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:58:41,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 06:58:41,115 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:41,116 INFO L82 PathProgramCache]: Analyzing trace with hash 480653316, now seen corresponding path program 1 times [2021-10-13 06:58:41,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:58:41,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595299741] [2021-10-13 06:58:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:41,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:58:41,141 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 06:58:41,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [482262406] [2021-10-13 06:58:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:41,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:58:41,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:58:41,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:58:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 06:58:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:41,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:58:41,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:58:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:41,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:58:42,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:42,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:58:42,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595299741] [2021-10-13 06:58:42,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 06:58:42,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482262406] [2021-10-13 06:58:42,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482262406] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:58:42,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:58:42,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:58:42,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446403735] [2021-10-13 06:58:42,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 06:58:42,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 06:58:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 06:58:42,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 06:58:42,906 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:48,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:58:48,092 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2021-10-13 06:58:48,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:58:48,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 06:58:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:58:48,094 INFO L225 Difference]: With dead ends: 92 [2021-10-13 06:58:48,094 INFO L226 Difference]: Without dead ends: 76 [2021-10-13 06:58:48,095 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 06:58:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-10-13 06:58:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70. [2021-10-13 06:58:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.2459016393442623) internal successors, (76), 69 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2021-10-13 06:58:48,121 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 8 [2021-10-13 06:58:48,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:58:48,121 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2021-10-13 06:58:48,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2021-10-13 06:58:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 06:58:48,122 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:48,122 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-13 06:58:48,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:58:48,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-13 06:58:48,323 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:48,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:48,323 INFO L82 PathProgramCache]: Analyzing trace with hash 522498748, now seen corresponding path program 1 times [2021-10-13 06:58:48,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 06:58:48,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094703169] [2021-10-13 06:58:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:48,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 06:58:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:48,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 06:58:48,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094703169] [2021-10-13 06:58:48,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094703169] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 06:58:48,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660389547] [2021-10-13 06:58:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:48,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:58:48,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:58:48,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:58:48,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 06:58:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:48,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 06:58:48,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:58:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:49,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:58:49,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:49,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660389547] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:58:49,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256071400] [2021-10-13 06:58:49,198 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 06:58:49,198 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 06:58:49,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 06:58:49,213 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 06:58:49,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 06:58:49,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:58:49,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 06:58:49,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 06:58:49,268 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,269 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 06:58:49,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-13 06:58:49,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:58:49,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:58:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 06:58:49,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 06:58:49,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:58:49,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 06:58:49,355 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 06:58:49,364 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-10-13 06:58:49,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 06:58:49,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 06:58:49,367 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 06:58:49,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 06:58:49,411 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 06:58:49,416 INFO L180 QuantifierPusher]: treesize reduction 5, result has 96.7 percent of original size [2021-10-13 06:58:49,421 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-13 06:58:49,422 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 06:58:49,422 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:298, output treesize:146 [2021-10-13 06:58:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:58:49,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:58:49,652 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_22| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 06:58:49,655 INFO L168 Benchmark]: Toolchain (without parser) took 19060.05 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 52.3 MB in the beginning and 67.4 MB in the end (delta: -15.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:49,656 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 100.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:58:49,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.45 ms. Allocated memory is still 96.5 MB. Free memory was 52.1 MB in the beginning and 71.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:49,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.98 ms. Allocated memory is still 96.5 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:49,658 INFO L168 Benchmark]: Boogie Preprocessor took 35.30 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:58:49,659 INFO L168 Benchmark]: RCFGBuilder took 2685.29 ms. Allocated memory is still 96.5 MB. Free memory was 67.9 MB in the beginning and 50.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:49,660 INFO L168 Benchmark]: TraceAbstraction took 15902.07 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 50.3 MB in the beginning and 67.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:58:49,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 100.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 378.45 ms. Allocated memory is still 96.5 MB. Free memory was 52.1 MB in the beginning and 71.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.98 ms. Allocated memory is still 96.5 MB. Free memory was 71.0 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.30 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2685.29 ms. Allocated memory is still 96.5 MB. Free memory was 67.9 MB in the beginning and 50.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15902.07 ms. Allocated memory was 96.5 MB in the beginning and 134.2 MB in the end (delta: 37.7 MB). Free memory was 50.3 MB in the beginning and 67.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_22| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_22|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 06:58:49,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:58:52,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:58:52,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:58:52,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:58:52,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:58:52,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:58:52,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:58:52,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:58:52,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:58:52,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:58:52,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:58:52,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:58:52,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:58:52,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:58:52,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:58:52,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:58:52,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:58:52,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:58:52,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:58:52,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:58:52,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:58:52,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:58:52,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:58:52,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:58:52,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:58:52,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:58:52,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:58:52,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:58:52,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:58:52,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:58:52,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:58:52,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:58:52,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:58:52,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:58:52,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:58:52,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:58:52,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:58:52,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:58:52,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:58:52,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:58:52,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:58:52,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:58:52,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:58:52,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:58:52,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:58:52,772 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:58:52,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:58:52,773 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:58:52,773 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:58:52,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:58:52,773 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:58:52,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:58:52,774 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:58:52,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:58:52,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:58:52,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:58:52,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:58:52,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:58:52,776 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:58:52,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:58:52,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:58:52,777 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:58:52,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:58:52,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:58:52,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:58:52,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:58:52,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:58:52,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:58:52,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:52,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:58:52,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:58:52,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:58:52,779 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:58:52,780 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:58:52,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:58:52,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:58:52,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:58:52,781 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4d247efd04e3e4cb2503f723a85cffc04db470c [2021-10-13 06:58:53,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:58:53,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:58:53,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:58:53,261 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:58:53,262 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:58:53,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2021-10-13 06:58:53,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/271f9717c/e6b8ad972b5d4f0b9379318874894e7b/FLAGc3f3a9e4a [2021-10-13 06:58:53,942 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:58:53,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c [2021-10-13 06:58:53,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/271f9717c/e6b8ad972b5d4f0b9379318874894e7b/FLAGc3f3a9e4a [2021-10-13 06:58:54,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/data/271f9717c/e6b8ad972b5d4f0b9379318874894e7b [2021-10-13 06:58:54,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:58:54,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:58:54,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:54,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:58:54,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:58:54,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4f683b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54, skipping insertion in model container [2021-10-13 06:58:54,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:58:54,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:58:54,561 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2021-10-13 06:58:54,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:54,676 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:58:54,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_valuebound2.c[525,538] [2021-10-13 06:58:54,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:58:54,794 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:58:54,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54 WrapperNode [2021-10-13 06:58:54,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:58:54,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:54,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:58:54,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:58:54,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:58:54,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:58:54,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:58:54,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:58:54,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:58:54,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:58:54,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:58:54,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:58:54,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (1/1) ... [2021-10-13 06:58:54,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:58:54,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:58:54,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:58:54,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:58:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:58:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:58:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:58:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:58:56,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:58:56,649 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-10-13 06:58:56,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:56 BoogieIcfgContainer [2021-10-13 06:58:56,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:58:56,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:58:56,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:58:56,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:58:56,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:58:54" (1/3) ... [2021-10-13 06:58:56,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427e3d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:56, skipping insertion in model container [2021-10-13 06:58:56,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:58:54" (2/3) ... [2021-10-13 06:58:56,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427e3d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:58:56, skipping insertion in model container [2021-10-13 06:58:56,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:58:56" (3/3) ... [2021-10-13 06:58:56,662 INFO L111 eAbstractionObserver]: Analyzing ICFG dijkstra-u_valuebound2.c [2021-10-13 06:58:56,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:58:56,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-10-13 06:58:56,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:58:56,738 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:58:56,738 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-10-13 06:58:56,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 06:58:56,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:56,765 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:58:56,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:56,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1235857098, now seen corresponding path program 1 times [2021-10-13 06:58:56,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:58:56,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [754181535] [2021-10-13 06:58:56,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:56,790 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:58:56,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:58:56,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:58:56,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:58:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:56,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:58:56,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:58:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:56,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:58:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:57,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:58:57,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [754181535] [2021-10-13 06:58:57,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [754181535] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:58:57,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:58:57,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:58:57,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482526950] [2021-10-13 06:58:57,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:58:57,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:58:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:58:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:58:57,049 INFO L87 Difference]: Start difference. First operand has 50 states, 40 states have (on average 1.675) internal successors, (67), 49 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:57,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:58:57,078 INFO L93 Difference]: Finished difference Result 97 states and 130 transitions. [2021-10-13 06:58:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:58:57,085 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 06:58:57,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:58:57,097 INFO L225 Difference]: With dead ends: 97 [2021-10-13 06:58:57,098 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 06:58:57,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:58:57,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 06:58:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-13 06:58:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2021-10-13 06:58:57,145 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 10 [2021-10-13 06:58:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:58:57,146 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2021-10-13 06:58:57,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:58:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2021-10-13 06:58:57,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 06:58:57,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:58:57,147 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:58:57,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:58:57,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:58:57,348 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:58:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:58:57,349 INFO L82 PathProgramCache]: Analyzing trace with hash -1503620767, now seen corresponding path program 1 times [2021-10-13 06:58:57,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:58:57,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314042112] [2021-10-13 06:58:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:58:57,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:58:57,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:58:57,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:58:57,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:58:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:58:57,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:58:57,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:58:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:57,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:58:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:58:58,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:58:58,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314042112] [2021-10-13 06:58:58,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314042112] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:58:58,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:58:58,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 10 [2021-10-13 06:58:58,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894683317] [2021-10-13 06:58:58,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 06:58:58,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:58:58,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 06:58:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-13 06:58:58,270 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:03,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:59:03,062 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2021-10-13 06:59:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 06:59:03,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 06:59:03,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:59:03,078 INFO L225 Difference]: With dead ends: 147 [2021-10-13 06:59:03,079 INFO L226 Difference]: Without dead ends: 105 [2021-10-13 06:59:03,080 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1358.7ms TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-10-13 06:59:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-13 06:59:03,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 67. [2021-10-13 06:59:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 66 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-10-13 06:59:03,098 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 11 [2021-10-13 06:59:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:59:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-10-13 06:59:03,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-10-13 06:59:03,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 06:59:03,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:59:03,100 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:59:03,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:59:03,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:59:03,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:59:03,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:59:03,320 INFO L82 PathProgramCache]: Analyzing trace with hash 2147482631, now seen corresponding path program 1 times [2021-10-13 06:59:03,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:59:03,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898207931] [2021-10-13 06:59:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:59:03,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:59:03,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:59:03,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:59:03,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:59:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:59:03,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 06:59:03,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:59:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:04,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:59:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:11,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:59:11,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898207931] [2021-10-13 06:59:11,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898207931] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:59:11,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:59:11,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 8 [2021-10-13 06:59:11,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180227551] [2021-10-13 06:59:11,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:59:11,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:59:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:59:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:59:11,164 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:59:41,532 INFO L93 Difference]: Finished difference Result 103 states and 107 transitions. [2021-10-13 06:59:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 06:59:41,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 06:59:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:59:41,550 INFO L225 Difference]: With dead ends: 103 [2021-10-13 06:59:41,550 INFO L226 Difference]: Without dead ends: 84 [2021-10-13 06:59:41,551 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 18298.1ms TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2021-10-13 06:59:41,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-13 06:59:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 56. [2021-10-13 06:59:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:41,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-10-13 06:59:41,580 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 15 [2021-10-13 06:59:41,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:59:41,581 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-10-13 06:59:41,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:59:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-10-13 06:59:41,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 06:59:41,582 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:59:41,583 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:59:41,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:59:41,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:59:41,801 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 06:59:41,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:59:41,801 INFO L82 PathProgramCache]: Analyzing trace with hash -588730529, now seen corresponding path program 1 times [2021-10-13 06:59:41,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:59:41,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325630598] [2021-10-13 06:59:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:59:41,803 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:59:41,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:59:41,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:59:41,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:59:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:59:41,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 06:59:41,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:59:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:42,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:59:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:45,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:59:45,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325630598] [2021-10-13 06:59:45,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325630598] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:59:45,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [839233937] [2021-10-13 06:59:45,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:59:45,299 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 06:59:45,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 06:59:45,301 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 06:59:45,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-13 06:59:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:59:45,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 06:59:45,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:59:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:45,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:59:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [839233937] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:59:47,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884281492] [2021-10-13 06:59:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:59:47,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 06:59:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:59:47,507 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 06:59:47,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 06:59:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:59:47,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 06:59:47,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:59:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:48,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:59:54,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:59:54,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884281492] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 06:59:54,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 06:59:54,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 9, 8] total 19 [2021-10-13 06:59:54,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365146643] [2021-10-13 06:59:54,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 06:59:54,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:59:54,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 06:59:54,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-10-13 06:59:54,903 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:13,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:00:13,357 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions. [2021-10-13 07:00:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 07:00:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 07:00:13,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:00:13,359 INFO L225 Difference]: With dead ends: 125 [2021-10-13 07:00:13,359 INFO L226 Difference]: Without dead ends: 81 [2021-10-13 07:00:13,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 11207.9ms TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2021-10-13 07:00:13,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-13 07:00:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2021-10-13 07:00:13,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.1791044776119404) internal successors, (79), 74 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2021-10-13 07:00:13,376 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 15 [2021-10-13 07:00:13,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:00:13,376 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2021-10-13 07:00:13,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 19 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:13,377 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2021-10-13 07:00:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:00:13,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:00:13,378 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:00:13,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:00:13,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:00:13,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 07:00:13,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:00:13,992 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:00:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:00:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash -957581047, now seen corresponding path program 1 times [2021-10-13 07:00:13,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:00:13,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168980715] [2021-10-13 07:00:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:00:13,993 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:00:13,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:00:13,995 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:00:13,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:00:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:00:14,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 07:00:14,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:00:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:15,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:00:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:16,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:00:16,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1168980715] [2021-10-13 07:00:16,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1168980715] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:00:17,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1984765296] [2021-10-13 07:00:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:00:17,002 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:00:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:00:17,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:00:17,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 07:00:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:00:17,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 07:00:17,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:00:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:19,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:00:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:21,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1984765296] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:00:21,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145781063] [2021-10-13 07:00:21,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:00:21,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:00:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:00:21,765 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:00:21,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 07:00:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:00:22,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:00:22,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:00:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:23,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:00:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:28,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145781063] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:00:28,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:00:28,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8, 8, 10, 9] total 32 [2021-10-13 07:00:28,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153185480] [2021-10-13 07:00:28,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 07:00:28,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:00:28,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 07:00:28,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=857, Unknown=0, NotChecked=0, Total=992 [2021-10-13 07:00:28,965 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:36,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:00:36,608 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2021-10-13 07:00:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:00:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-13 07:00:36,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:00:36,610 INFO L225 Difference]: With dead ends: 108 [2021-10-13 07:00:36,610 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:00:36,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 9923.7ms TimeCoverageRelationStatistics Valid=320, Invalid=1402, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 07:00:36,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:00:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 07:00:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.12) internal successors, (56), 56 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 56 transitions. [2021-10-13 07:00:36,632 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 56 transitions. Word has length 27 [2021-10-13 07:00:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:00:36,632 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 56 transitions. [2021-10-13 07:00:36,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:00:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 56 transitions. [2021-10-13 07:00:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:00:36,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:00:36,634 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:00:36,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:00:36,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:00:37,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-13 07:00:37,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:00:37,244 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:00:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:00:37,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1112228340, now seen corresponding path program 1 times [2021-10-13 07:00:37,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:00:37,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806240849] [2021-10-13 07:00:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:00:37,245 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:00:37,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:00:37,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:00:37,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:00:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:00:37,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:00:37,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:00:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:39,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:00:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:57,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:00:57,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806240849] [2021-10-13 07:00:57,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806240849] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:00:57,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [433347518] [2021-10-13 07:00:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:00:57,016 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:00:57,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:00:57,017 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:00:57,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-13 07:00:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:00:58,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:00:58,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:00:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:00:59,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:01:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:01:11,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [433347518] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:01:11,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791671918] [2021-10-13 07:01:11,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:11,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:01:11,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:01:11,230 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:01:11,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 07:01:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:01:11,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 07:01:11,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:01:13,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:01:13,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:01:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:01:28,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791671918] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:01:28,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:01:28,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 7, 7, 11, 10] total 27 [2021-10-13 07:01:28,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815512831] [2021-10-13 07:01:28,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 07:01:28,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:01:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 07:01:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2021-10-13 07:01:28,167 INFO L87 Difference]: Start difference. First operand 57 states and 56 transitions. Second operand has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:01:36,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:01:36,785 INFO L93 Difference]: Finished difference Result 57 states and 56 transitions. [2021-10-13 07:01:36,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:01:36,786 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-13 07:01:36,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:01:36,787 INFO L225 Difference]: With dead ends: 57 [2021-10-13 07:01:36,787 INFO L226 Difference]: Without dead ends: 53 [2021-10-13 07:01:36,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 26625.0ms TimeCoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 07:01:36,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-13 07:01:36,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-13 07:01:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 52 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:01:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 52 transitions. [2021-10-13 07:01:36,800 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 52 transitions. Word has length 29 [2021-10-13 07:01:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:01:36,801 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 52 transitions. [2021-10-13 07:01:36,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:01:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 52 transitions. [2021-10-13 07:01:36,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-13 07:01:36,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:01:36,803 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:01:36,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:01:37,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:01:37,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2021-10-13 07:01:37,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:01:37,408 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-10-13 07:01:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:01:37,411 INFO L82 PathProgramCache]: Analyzing trace with hash 595578799, now seen corresponding path program 1 times [2021-10-13 07:01:37,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:01:37,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246582146] [2021-10-13 07:01:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:01:37,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:01:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:01:37,417 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:01:37,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:01:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:01:38,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 07:01:38,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:01:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:01:40,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:02:54,648 WARN L207 SmtUtils]: Spent 6.84 s on a formula simplification that was a NOOP. DAG size: 72 [2021-10-13 07:04:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:04:42,952 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:04:42,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246582146] [2021-10-13 07:04:42,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246582146] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:04:42,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2043849185] [2021-10-13 07:04:42,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:04:42,953 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:04:42,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:04:42,954 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:04:42,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-13 07:04:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:04:44,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:04:44,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:04:46,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:04:46,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:05:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:05:54,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2043849185] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:05:54,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917781604] [2021-10-13 07:05:54,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:05:54,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:05:54,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:05:54,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:05:54,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 07:05:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:05:55,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 07:05:55,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:06:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:04,771 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:06:43,942 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_ULTIMATE.start_main_~r~0_50 (_ BitVec 32))) (let ((.cse1 (bvudiv c_ULTIMATE.start_main_~p~0 (_ bv2 32))) (.cse0 (bvudiv c_ULTIMATE.start_main_~q~0 (_ bv4 32)))) (or (= (bvadd (bvmul (_ bv16 32) (bvmul c_ULTIMATE.start_main_~n~0 .cse0 .cse0)) (bvneg (bvmul (bvmul (bvadd c_ULTIMATE.start_main_~p~0 .cse0) .cse0) .cse0)) (bvneg (bvmul (bvmul (bvadd (bvmul c_ULTIMATE.start_main_~p~0 (_ bv12 32)) (bvmul .cse0 (_ bv12 32))) c_ULTIMATE.start_main_~n~0) .cse0)) (bvneg (bvmul (bvmul (bvadd (bvmul .cse1 (_ bv16 32)) (bvmul .cse0 (_ bv16 32))) .cse0) v_ULTIMATE.start_main_~r~0_50)) (bvmul (_ bv12 32) (bvmul v_ULTIMATE.start_main_~r~0_50 .cse0 .cse0)) (bvneg (bvmul (bvmul (bvadd (bvmul .cse1 (_ bv4 32)) (bvmul .cse0 (_ bv4 32))) .cse0) .cse0)) (bvmul .cse0 .cse0 .cse0) (bvmul (_ bv3 32) (bvmul .cse0 .cse0 c_ULTIMATE.start_main_~p~0)) (bvmul (_ bv3 32) (bvmul .cse0 c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~p~0)) (bvmul c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~p~0 c_ULTIMATE.start_main_~p~0) (bvmul (_ bv12 32) (bvmul v_ULTIMATE.start_main_~r~0_50 .cse0 c_ULTIMATE.start_main_~p~0)) (bvmul (_ bv16 32) (bvmul c_ULTIMATE.start_main_~n~0 .cse0 .cse1))) (_ bv0 32)) (not (bvult v_ULTIMATE.start_main_~r~0_50 (bvadd (bvmul .cse1 (_ bv2 32)) (bvmul .cse0 (_ bv3 32))))) (not (= (bvmul c_ULTIMATE.start_main_~n~0 .cse0) (bvadd (bvmul .cse1 .cse1) (bvmul (_ bv2 32) (bvmul .cse0 .cse1)) (bvmul v_ULTIMATE.start_main_~r~0_50 .cse0) (bvmul .cse0 .cse0))))))) (not (bvuge c_ULTIMATE.start_main_~r~0 (bvadd c_ULTIMATE.start_main_~p~0 (bvudiv c_ULTIMATE.start_main_~q~0 (_ bv4 32)))))) is different from true [2021-10-13 07:07:51,319 WARN L207 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 72 [2021-10-13 07:09:09,280 WARN L207 SmtUtils]: Spent 6.22 s on a formula simplification that was a NOOP. DAG size: 71 [2021-10-13 07:09:42,881 WARN L207 SmtUtils]: Spent 6.07 s on a formula simplification that was a NOOP. DAG size: 75 [2021-10-13 07:09:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2021-10-13 07:09:46,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917781604] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:09:46,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:09:46,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 7, 7, 16, 14] total 43 [2021-10-13 07:09:46,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431976180] [2021-10-13 07:09:46,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-13 07:09:46,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:09:46,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-13 07:09:46,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1358, Unknown=33, NotChecked=80, Total=1806 [2021-10-13 07:09:46,682 INFO L87 Difference]: Start difference. First operand 53 states and 52 transitions. Second operand has 43 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 43 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:10:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:10:50,231 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2021-10-13 07:10:50,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:10:50,232 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 43 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-13 07:10:50,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:10:50,232 INFO L225 Difference]: With dead ends: 53 [2021-10-13 07:10:50,232 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:10:50,234 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 138 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 892 ImplicationChecksByTransitivity, 301712.5ms TimeCoverageRelationStatistics Valid=540, Invalid=1881, Unknown=33, NotChecked=96, Total=2550 [2021-10-13 07:10:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:10:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:10:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:10:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:10:50,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-13 07:10:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:10:50,235 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:10:50,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 43 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:10:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:10:50,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:10:50,239 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,239 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,239 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,239 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,240 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:10:50,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:10:50,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:10:50,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-13 07:10:50,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:10:50,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:10:50,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:50,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:50,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:50,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:50,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:10:51,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:11:00,875 WARN L207 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2021-10-13 07:11:06,732 WARN L207 SmtUtils]: Spent 5.85 s on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-10-13 07:11:13,975 WARN L207 SmtUtils]: Spent 5.97 s on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-10-13 07:11:21,761 WARN L207 SmtUtils]: Spent 6.48 s on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-10-13 07:11:27,968 WARN L207 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-10-13 07:11:35,063 WARN L207 SmtUtils]: Spent 7.09 s on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2021-10-13 07:11:35,066 INFO L860 garLoopResultBuilder]: At program point L60(lines 19 61) the Hoare annotation is: true [2021-10-13 07:11:35,067 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,067 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-10-13 07:11:35,067 INFO L857 garLoopResultBuilder]: For program point L52-2(lines 19 61) no Hoare annotation was computed. [2021-10-13 07:11:35,067 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:11:35,068 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:11:35,068 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,068 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (let ((.cse6 (bvneg ULTIMATE.start_main_~q~0))) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse6)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul .cse6 (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0))) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,069 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,069 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,069 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,070 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,070 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,070 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,070 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,071 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,071 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,071 INFO L853 garLoopResultBuilder]: At program point L12-17(lines 46 47) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse5 (bvneg ULTIMATE.start_main_~h~0)) (.cse2 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 .cse1 .cse2 (not (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) .cse3 .cse4) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 .cse5)) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse3 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)) (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 .cse5) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse2 .cse3 .cse4 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)))) [2021-10-13 07:11:35,072 INFO L857 garLoopResultBuilder]: For program point L12-18(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,072 INFO L853 garLoopResultBuilder]: At program point L12-20(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32)))) (or (and .cse0 .cse1 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (bvule ULTIMATE.start_main_~n~0 (_ bv2 32)) (= ULTIMATE.start_main_~p~0 (_ bv0 32)) (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0)) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)))) [2021-10-13 07:11:35,072 INFO L857 garLoopResultBuilder]: For program point L12-21(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,072 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,073 INFO L853 garLoopResultBuilder]: At program point L12-23(lines 11 17) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~q~0 (_ bv1 32))) (.cse2 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) (or (and .cse0 .cse1 (bvule ULTIMATE.start_main_~n~0 (_ bv2 32)) (= ULTIMATE.start_main_~p~0 (_ bv0 32)) .cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0)) (and (= ULTIMATE.start_main_~r~0 (bvadd ULTIMATE.start_main_~n~0 (bvneg ULTIMATE.start_main_~h~0))) .cse0 .cse1 (= ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~q~0) .cse2 (bvule (bvadd (bvmul (bvneg ULTIMATE.start_main_~q~0) (_ bv4294967295 32)) ULTIMATE.start_main_~r~0) (_ bv2 32)) (= (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0) (bvadd (bvmul ULTIMATE.start_main_~p~0 ULTIMATE.start_main_~p~0) (bvmul ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0))) (bvule ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~n~0)))) [2021-10-13 07:11:35,073 INFO L857 garLoopResultBuilder]: For program point L12-24(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:11:35,073 INFO L860 garLoopResultBuilder]: At program point L12-26(lines 11 17) the Hoare annotation is: true [2021-10-13 07:11:35,073 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,073 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,074 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,074 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,074 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,074 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,074 INFO L857 garLoopResultBuilder]: For program point L13-6(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,075 INFO L857 garLoopResultBuilder]: For program point L13-7(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,075 INFO L857 garLoopResultBuilder]: For program point L38-1(lines 38 56) no Hoare annotation was computed. [2021-10-13 07:11:35,075 INFO L857 garLoopResultBuilder]: For program point L13-8(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:11:35,075 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,076 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse1 (= ULTIMATE.start_main_~p~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~n~0))) (or (and (bvule (_ bv1 32) ULTIMATE.start_main_~r~0) .cse0 (bvult (bvadd ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~h~0)) (bvadd (bvmul ULTIMATE.start_main_~q~0 (_ bv3 32)) (bvmul ULTIMATE.start_main_~p~0 (_ bv2 32)))) .cse1 .cse2 (bvule ULTIMATE.start_main_~r~0 (_ bv2 32)) (= (bvadd (bvmul (_ bv12 32) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~h~0 (_ bv12 32)) ULTIMATE.start_main_~n~0) ULTIMATE.start_main_~q~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv4 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul (_ bv16 32) (bvmul ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~p~0)) (bvneg (bvmul (bvmul (bvmul ULTIMATE.start_main_~p~0 (_ bv16 32)) ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~q~0) ULTIMATE.start_main_~q~0)) (bvmul ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0 ULTIMATE.start_main_~h~0)) (_ bv0 32)) (= (_ bv4 32) ULTIMATE.start_main_~q~0)) (and (= ULTIMATE.start_main_~h~0 (_ bv0 32)) .cse0 (= ULTIMATE.start_main_~q~0 (_ bv1 32)) (bvule ULTIMATE.start_main_~n~0 (_ bv2 32)) .cse1 .cse2))) [2021-10-13 07:11:35,076 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-13 07:11:35,076 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,076 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:11:35,076 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,077 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,077 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-13 07:11:35,077 INFO L857 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2021-10-13 07:11:35,077 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:11:35,078 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,078 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-13 07:11:35,078 INFO L857 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2021-10-13 07:11:35,078 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:11:35,083 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:11:35,091 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:11:35,098 INFO L168 Benchmark]: Toolchain (without parser) took 760807.58 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 42.8 MB in the beginning and 25.2 MB in the end (delta: 17.6 MB). Peak memory consumption was 53.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:11:35,098 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:11:35,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 504.87 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 44.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:11:35,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.93 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:11:35,100 INFO L168 Benchmark]: Boogie Preprocessor took 73.04 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:11:35,100 INFO L168 Benchmark]: RCFGBuilder took 1728.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 40.8 MB in the beginning and 73.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:11:35,101 INFO L168 Benchmark]: TraceAbstraction took 758441.61 ms. Allocated memory is still 92.3 MB. Free memory was 73.4 MB in the beginning and 25.2 MB in the end (delta: 48.2 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:11:35,103 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 504.87 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 44.3 MB in the end (delta: -1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.93 ms. Allocated memory is still 62.9 MB. Free memory was 44.2 MB in the beginning and 42.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.04 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1728.17 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 40.8 MB in the beginning and 73.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 758441.61 ms. Allocated memory is still 92.3 MB. Free memory was 73.4 MB in the beginning and 25.2 MB in the end (delta: 48.2 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 758356.0ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 18.1ms, AutomataDifference: 133563.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 44224.6ms, InitialAbstractionConstructionTime: 13.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 187 SDtfs, 1421 SDslu, 642 SDs, 0 SdLazy, 1390 SolverSat, 912 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 82278.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 713 GetRequests, 527 SyntacticMatches, 4 SemanticMatches, 182 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 369126.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=4, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 119.7ms AutomataMinimizationTime, 7 MinimizatonAttempts, 72 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 39 NumberOfFragments, 1109 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1684 FormulaSimplificationTreeSizeReduction, 253.1ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 483 FormulaSimplificationTreeSizeReductionInter, 43963.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 111.4ms SsaConstructionTime, 5165.1ms SatisfiabilityAnalysisTime, 568608.3ms InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 654 ConstructedInterpolants, 24 QuantifiedInterpolants, 21559 SizeOfPredicates, 129 NumberOfNonLiveVariables, 872 ConjunctsInSsa, 221 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 0/120 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:11:35,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_371ac3c7-38c6-41ab-b883-0af056f8d1a0/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...