./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan --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 231a10bb05ed6dc00d2658e900a2b37af0aae558 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan --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 231a10bb05ed6dc00d2658e900a2b37af0aae558 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 16:06:25,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:06:25,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:06:25,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:06:25,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:06:25,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:06:25,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:06:25,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:06:25,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:06:25,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:06:25,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:06:25,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:06:25,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:06:25,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:06:25,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:06:25,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:06:25,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:06:25,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:06:25,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:06:25,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:06:25,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:06:25,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:06:25,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:06:25,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:06:25,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:06:25,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:06:25,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:06:25,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:06:25,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:06:25,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:06:25,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:06:25,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:06:25,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:06:25,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:06:25,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:06:25,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:06:25,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:06:25,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:06:25,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:06:25,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:06:25,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:06:25,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 16:06:25,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:06:25,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:06:25,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:06:25,378 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:06:25,379 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 16:06:25,379 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:06:25,380 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 16:06:25,380 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 16:06:25,380 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 16:06:25,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:06:25,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:06:25,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:06:25,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:06:25,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:06:25,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:06:25,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:06:25,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:06:25,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:06:25,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:06:25,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:06:25,383 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-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 231a10bb05ed6dc00d2658e900a2b37af0aae558 [2020-12-09 16:06:25,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:06:25,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:06:25,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:06:25,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:06:25,579 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:06:25,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-09 16:06:25,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/6b59fe135/f9d94a2910cd47da857142217f7db014/FLAG2a9e45541 [2020-12-09 16:06:25,991 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:06:25,992 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-09 16:06:25,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/6b59fe135/f9d94a2910cd47da857142217f7db014/FLAG2a9e45541 [2020-12-09 16:06:26,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/6b59fe135/f9d94a2910cd47da857142217f7db014 [2020-12-09 16:06:26,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:06:26,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:06:26,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:06:26,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:06:26,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:06:26,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2503557d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26, skipping insertion in model container [2020-12-09 16:06:26,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:06:26,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:06:26,136 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-09 16:06:26,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:06:26,153 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:06:26,161 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-09 16:06:26,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:06:26,175 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:06:26,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26 WrapperNode [2020-12-09 16:06:26,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:06:26,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:06:26,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:06:26,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:06:26,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:06:26,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:06:26,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:06:26,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:06:26,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... [2020-12-09 16:06:26,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:06:26,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:06:26,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:06:26,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:06:26,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:06:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 16:06:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:06:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:06:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:06:26,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:06:26,569 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 16:06:26,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:26 BoogieIcfgContainer [2020-12-09 16:06:26,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:06:26,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:06:26,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:06:26,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:06:26,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:06:26" (1/3) ... [2020-12-09 16:06:26,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7848e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:06:26, skipping insertion in model container [2020-12-09 16:06:26,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:26" (2/3) ... [2020-12-09 16:06:26,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7848e498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:06:26, skipping insertion in model container [2020-12-09 16:06:26,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:26" (3/3) ... [2020-12-09 16:06:26,576 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2020-12-09 16:06:26,585 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:06:26,588 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 16:06:26,595 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 16:06:26,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:06:26,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:06:26,614 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:06:26,614 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:06:26,614 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:06:26,614 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:06:26,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:06:26,614 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:06:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 16:06:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 16:06:26,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:26,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 16:06:26,628 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:26,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:26,632 INFO L82 PathProgramCache]: Analyzing trace with hash 5424045, now seen corresponding path program 1 times [2020-12-09 16:06:26,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:06:26,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456757552] [2020-12-09 16:06:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:06:26,715 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 16:06:26,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466589150] [2020-12-09 16:06:26,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:26,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 16:06:26,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:26,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:26,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456757552] [2020-12-09 16:06:26,872 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 16:06:26,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466589150] [2020-12-09 16:06:26,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:26,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 16:06:26,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868653940] [2020-12-09 16:06:26,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 16:06:26,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:06:26,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 16:06:26,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 16:06:26,891 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2020-12-09 16:06:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:27,011 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2020-12-09 16:06:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 16:06:27,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 16:06:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:27,018 INFO L225 Difference]: With dead ends: 75 [2020-12-09 16:06:27,018 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 16:06:27,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-12-09 16:06:27,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 16:06:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2020-12-09 16:06:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 16:06:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-09 16:06:27,044 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 4 [2020-12-09 16:06:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:27,044 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-09 16:06:27,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 16:06:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-09 16:06:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 16:06:27,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:27,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 16:06:27,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 16:06:27,247 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:27,248 INFO L82 PathProgramCache]: Analyzing trace with hash 917696144, now seen corresponding path program 1 times [2020-12-09 16:06:27,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:06:27,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689700350] [2020-12-09 16:06:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:06:27,274 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 16:06:27,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634207990] [2020-12-09 16:06:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:27,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 16:06:27,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:27,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:27,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689700350] [2020-12-09 16:06:27,434 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 16:06:27,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634207990] [2020-12-09 16:06:27,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:27,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 16:06:27,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891651711] [2020-12-09 16:06:27,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 16:06:27,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:06:27,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 16:06:27,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 16:06:27,437 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 6 states. [2020-12-09 16:06:27,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:27,505 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2020-12-09 16:06:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 16:06:27,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-09 16:06:27,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:27,507 INFO L225 Difference]: With dead ends: 52 [2020-12-09 16:06:27,507 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 16:06:27,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-09 16:06:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 16:06:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-12-09 16:06:27,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-09 16:06:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-09 16:06:27,517 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 6 [2020-12-09 16:06:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:27,518 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-09 16:06:27,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 16:06:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-12-09 16:06:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 16:06:27,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:27,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:27,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:27,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:27,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:27,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1413549718, now seen corresponding path program 1 times [2020-12-09 16:06:27,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:06:27,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948253878] [2020-12-09 16:06:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:06:27,775 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 16:06:27,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543534513] [2020-12-09 16:06:27,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:27,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 16:06:27,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:27,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:27,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:27,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948253878] [2020-12-09 16:06:27,937 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 16:06:27,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543534513] [2020-12-09 16:06:27,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:27,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-09 16:06:27,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110418785] [2020-12-09 16:06:27,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 16:06:27,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:06:27,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 16:06:27,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:06:27,940 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 5 states. [2020-12-09 16:06:28,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:28,017 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-12-09 16:06:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 16:06:28,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 16:06:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:28,018 INFO L225 Difference]: With dead ends: 44 [2020-12-09 16:06:28,019 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 16:06:28,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 16:06:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 16:06:28,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-12-09 16:06:28,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-09 16:06:28,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-12-09 16:06:28,032 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 13 [2020-12-09 16:06:28,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:28,032 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-12-09 16:06:28,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 16:06:28,033 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-12-09 16:06:28,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 16:06:28,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:28,033 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:28,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:28,236 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:28,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:28,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1898150023, now seen corresponding path program 1 times [2020-12-09 16:06:28,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:06:28,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704457335] [2020-12-09 16:06:28,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:06:28,273 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 16:06:28,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106913320] [2020-12-09 16:06:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:28,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-09 16:06:28,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:28,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:28,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704457335] [2020-12-09 16:06:28,629 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 16:06:28,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106913320] [2020-12-09 16:06:28,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [966125578] [2020-12-09 16:06:28,646 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2020-12-09 16:06:28,646 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 16:06:28,649 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 16:06:28,653 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 16:06:28,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 16:06:28,743 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 16:06:29,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:29,308 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: cannot handle proper monomial at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.allCoefficientsOne(DualJunctionTir.java:670) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildDualFiniteJunction(DualJunctionTir.java:628) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:612) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:448) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:205) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:158) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryExhaustivelyToEliminate(DualJunctionTir.java:125) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminate(DualJunctionTir.java:112) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) 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:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2020-12-09 16:06:29,314 INFO L168 Benchmark]: Toolchain (without parser) took 3304.88 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 49.2 MB in the beginning and 64.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:06:29,315 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:06:29,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.20 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 61.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-12-09 16:06:29,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.50 ms. Allocated memory is still 90.2 MB. Free memory was 61.2 MB in the beginning and 59.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:06:29,319 INFO L168 Benchmark]: Boogie Preprocessor took 17.06 ms. Allocated memory is still 90.2 MB. Free memory was 59.4 MB in the beginning and 58.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:06:29,320 INFO L168 Benchmark]: RCFGBuilder took 351.06 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 48.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:06:29,321 INFO L168 Benchmark]: TraceAbstraction took 2741.45 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 48.3 MB in the beginning and 64.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-09 16:06:29,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 90.2 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 166.20 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 61.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.50 ms. Allocated memory is still 90.2 MB. Free memory was 61.2 MB in the beginning and 59.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.06 ms. Allocated memory is still 90.2 MB. Free memory was 59.4 MB in the beginning and 58.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 351.06 ms. Allocated memory is still 90.2 MB. Free memory was 58.2 MB in the beginning and 48.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2741.45 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 48.3 MB in the beginning and 64.6 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: cannot handle proper monomial de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: cannot handle proper monomial: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.allCoefficientsOne(DualJunctionTir.java:670) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 16:06:30,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:06:30,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:06:30,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:06:30,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:06:30,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:06:30,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:06:30,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:06:30,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:06:30,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:06:30,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:06:30,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:06:30,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:06:30,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:06:30,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:06:30,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:06:30,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:06:30,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:06:30,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:06:30,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:06:30,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:06:30,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:06:30,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:06:30,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:06:30,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:06:30,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:06:30,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:06:30,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:06:30,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:06:30,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:06:30,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:06:30,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:06:30,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:06:30,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:06:30,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:06:30,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:06:30,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:06:30,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:06:30,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:06:30,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:06:30,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:06:30,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 16:06:30,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:06:30,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:06:30,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:06:30,994 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:06:30,994 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:06:30,994 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:06:30,994 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:06:30,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:06:30,995 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:06:30,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:06:30,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:06:30,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:06:30,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 16:06:30,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 16:06:30,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:06:30,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:06:30,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:06:30,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:06:30,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:06:30,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 16:06:30,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:06:30,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:06:30,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:06:30,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:06:30,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:06:30,999 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 16:06:30,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 16:06:30,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:06:31,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:06:31,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:06:31,000 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-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 231a10bb05ed6dc00d2658e900a2b37af0aae558 [2020-12-09 16:06:31,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:06:31,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:06:31,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:06:31,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:06:31,260 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:06:31,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-09 16:06:31,300 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/224b03598/84fe244391154a999c3716483b79f815/FLAG55da3f9db [2020-12-09 16:06:31,691 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:06:31,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c [2020-12-09 16:06:31,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/224b03598/84fe244391154a999c3716483b79f815/FLAG55da3f9db [2020-12-09 16:06:31,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/data/224b03598/84fe244391154a999c3716483b79f815 [2020-12-09 16:06:31,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:06:31,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:06:31,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:06:31,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:06:31,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:06:31,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6457a56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31, skipping insertion in model container [2020-12-09 16:06:31,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:06:31,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:06:31,840 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-09 16:06:31,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:06:31,867 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:06:31,877 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound2.c[576,589] [2020-12-09 16:06:31,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:06:31,899 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:06:31,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31 WrapperNode [2020-12-09 16:06:31,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:06:31,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:06:31,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:06:31,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:06:31,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:06:31,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:06:31,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:06:31,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:06:31,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... [2020-12-09 16:06:31,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:06:31,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:06:31,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:06:31,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:06:31,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:06:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 16:06:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:06:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:06:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:06:32,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:06:32,517 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 16:06:32,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:32 BoogieIcfgContainer [2020-12-09 16:06:32,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:06:32,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:06:32,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:06:32,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:06:32,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:06:31" (1/3) ... [2020-12-09 16:06:32,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bbec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:06:32, skipping insertion in model container [2020-12-09 16:06:32,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:06:31" (2/3) ... [2020-12-09 16:06:32,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bbec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:06:32, skipping insertion in model container [2020-12-09 16:06:32,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:06:32" (3/3) ... [2020-12-09 16:06:32,524 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound2.c [2020-12-09 16:06:32,533 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:06:32,536 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 16:06:32,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 16:06:32,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:06:32,559 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:06:32,559 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:06:32,559 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:06:32,559 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:06:32,559 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:06:32,559 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:06:32,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:06:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-09 16:06:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 16:06:32,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:32,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:32,573 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:32,577 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-09 16:06:32,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:32,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039677477] [2020-12-09 16:06:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:32,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 16:06:32,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:32,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:32,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:06:32,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039677477] [2020-12-09 16:06:32,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:32,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:06:32,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757077049] [2020-12-09 16:06:32,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:06:32,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:06:32,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:06:32,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:06:32,703 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-09 16:06:32,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:32,716 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-12-09 16:06:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:06:32,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-09 16:06:32,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:32,723 INFO L225 Difference]: With dead ends: 83 [2020-12-09 16:06:32,723 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 16:06:32,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:06:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 16:06:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 16:06:32,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 16:06:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-12-09 16:06:32,749 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2020-12-09 16:06:32,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:32,749 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-12-09 16:06:32,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:06:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-12-09 16:06:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 16:06:32,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:32,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:32,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 16:06:32,951 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:32,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:32,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-09 16:06:32,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:32,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814975112] [2020-12-09 16:06:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:33,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 16:06:33,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:33,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:33,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:06:33,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814975112] [2020-12-09 16:06:33,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:33,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 16:06:33,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925331131] [2020-12-09 16:06:33,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 16:06:33,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:06:33,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 16:06:33,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 16:06:33,155 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2020-12-09 16:06:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:33,538 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-12-09 16:06:33,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 16:06:33,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-09 16:06:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:33,543 INFO L225 Difference]: With dead ends: 52 [2020-12-09 16:06:33,543 INFO L226 Difference]: Without dead ends: 50 [2020-12-09 16:06:33,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 16:06:33,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-09 16:06:33,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-12-09 16:06:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-09 16:06:33,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-12-09 16:06:33,549 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2020-12-09 16:06:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:33,550 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-12-09 16:06:33,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 16:06:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-12-09 16:06:33,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 16:06:33,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:33,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:33,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 16:06:33,752 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:33,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:33,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2020-12-09 16:06:33,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:33,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321108490] [2020-12-09 16:06:33,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:33,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 16:06:33,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:34,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:34,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:06:34,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321108490] [2020-12-09 16:06:34,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:34,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 16:06:34,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765772512] [2020-12-09 16:06:34,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 16:06:34,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:06:34,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 16:06:34,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 16:06:34,035 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2020-12-09 16:06:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:34,610 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-12-09 16:06:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 16:06:34,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-09 16:06:34,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:34,615 INFO L225 Difference]: With dead ends: 70 [2020-12-09 16:06:34,615 INFO L226 Difference]: Without dead ends: 60 [2020-12-09 16:06:34,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-12-09 16:06:34,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-09 16:06:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2020-12-09 16:06:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-09 16:06:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-12-09 16:06:34,622 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 13 [2020-12-09 16:06:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:34,623 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-12-09 16:06:34,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 16:06:34,623 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-12-09 16:06:34,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 16:06:34,623 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:34,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:34,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 16:06:34,825 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:34,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:34,827 INFO L82 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2020-12-09 16:06:34,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:34,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059121175] [2020-12-09 16:06:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:34,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 16:06:34,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:35,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:35,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:35,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:06:35,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059121175] [2020-12-09 16:06:35,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:06:35,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 16:06:35,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878099836] [2020-12-09 16:06:35,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 16:06:35,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:06:35,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 16:06:35,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 16:06:35,108 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2020-12-09 16:06:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:35,719 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-12-09 16:06:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 16:06:35,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-12-09 16:06:35,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:35,724 INFO L225 Difference]: With dead ends: 95 [2020-12-09 16:06:35,724 INFO L226 Difference]: Without dead ends: 89 [2020-12-09 16:06:35,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-09 16:06:35,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-09 16:06:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2020-12-09 16:06:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-09 16:06:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2020-12-09 16:06:35,734 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 16 [2020-12-09 16:06:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:35,734 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2020-12-09 16:06:35,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 16:06:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2020-12-09 16:06:35,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 16:06:35,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:35,735 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:35,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 16:06:35,936 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:35,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:35,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2020-12-09 16:06:35,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:35,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490230837] [2020-12-09 16:06:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:36,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-09 16:06:36,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:36,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:36,658 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:06:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:36,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:37,953 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 16:06:38,545 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 16:06:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:38,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490230837] [2020-12-09 16:06:38,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1275066882] [2020-12-09 16:06:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt [2020-12-09 16:06:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:38,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 16:06:38,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:39,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:39,430 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:06:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:39,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:39,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986601926] [2020-12-09 16:06:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:40,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 16:06:40,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:40,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:06:40,474 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-12-09 16:06:40,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:40,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 16:06:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:40,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:41,762 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 16:06:41,767 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 16:06:41,767 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:06:43,500 WARN L197 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 16:06:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:43,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 16:06:43,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 11, 6, 14, 7] total 24 [2020-12-09 16:06:43,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782658380] [2020-12-09 16:06:43,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-09 16:06:43,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:06:43,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-09 16:06:43,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2020-12-09 16:06:43,521 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 24 states. [2020-12-09 16:06:46,261 WARN L197 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2020-12-09 16:06:47,474 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2020-12-09 16:06:49,012 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-12-09 16:06:49,539 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2020-12-09 16:06:49,849 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2020-12-09 16:06:50,034 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2020-12-09 16:06:50,252 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2020-12-09 16:06:50,483 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 25 [2020-12-09 16:06:50,638 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2020-12-09 16:06:50,865 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-12-09 16:06:51,037 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-12-09 16:06:51,325 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-12-09 16:06:51,582 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-12-09 16:06:51,763 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2020-12-09 16:06:51,966 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2020-12-09 16:06:52,287 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2020-12-09 16:06:52,506 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2020-12-09 16:06:54,325 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2020-12-09 16:06:55,648 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2020-12-09 16:06:56,965 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 38 DAG size of output: 22 [2020-12-09 16:06:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:06:57,429 INFO L93 Difference]: Finished difference Result 200 states and 227 transitions. [2020-12-09 16:06:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-09 16:06:57,434 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 25 [2020-12-09 16:06:57,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:06:57,435 INFO L225 Difference]: With dead ends: 200 [2020-12-09 16:06:57,435 INFO L226 Difference]: Without dead ends: 149 [2020-12-09 16:06:57,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 127 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=691, Invalid=1661, Unknown=0, NotChecked=0, Total=2352 [2020-12-09 16:06:57,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-09 16:06:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 73. [2020-12-09 16:06:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-09 16:06:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2020-12-09 16:06:57,448 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 25 [2020-12-09 16:06:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:06:57,448 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2020-12-09 16:06:57,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-09 16:06:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2020-12-09 16:06:57,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 16:06:57,449 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:06:57,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:06:58,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:06:58,052 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:06:58,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:06:58,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2020-12-09 16:06:58,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:06:58,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412543733] [2020-12-09 16:06:58,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 16:06:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:06:58,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 16:06:58,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:06:58,801 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:06:58,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:06:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:06:58,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:06:59,673 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 16:07:02,183 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 16:07:05,382 WARN L197 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 16:07:06,864 WARN L197 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 16:07:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:07:06,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412543733] [2020-12-09 16:07:06,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [383414658] [2020-12-09 16:07:06,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 16:07:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:07:07,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 16:07:07,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:07:07,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:07:07,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:07:07,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:07:07,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:07:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:07:07,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669711861] [2020-12-09 16:07:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:07:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:07:07,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-09 16:07:07,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:07:07,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:07:07,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 16:07:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:07:07,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:07:11,126 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 16:07:11,131 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 16:07:11,131 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:07:14,824 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 16:07:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:07:16,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 16:07:16,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 13, 7, 14, 9] total 21 [2020-12-09 16:07:16,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599186297] [2020-12-09 16:07:16,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-12-09 16:07:16,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:07:16,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-12-09 16:07:16,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2020-12-09 16:07:16,345 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand 21 states. [2020-12-09 16:07:21,573 WARN L197 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2020-12-09 16:07:24,037 WARN L197 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-12-09 16:07:24,331 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2020-12-09 16:07:24,562 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-12-09 16:07:26,246 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2020-12-09 16:07:35,940 WARN L197 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-12-09 16:07:47,257 WARN L197 SmtUtils]: Spent 6.78 s on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-12-09 16:07:53,240 WARN L197 SmtUtils]: Spent 5.46 s on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2020-12-09 16:08:05,648 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2020-12-09 16:08:12,773 WARN L197 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 49 DAG size of output: 33 [2020-12-09 16:08:22,252 WARN L197 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 50 DAG size of output: 34 [2020-12-09 16:08:29,322 WARN L197 SmtUtils]: Spent 5.13 s on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2020-12-09 16:08:35,098 WARN L197 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-12-09 16:08:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:08:35,323 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2020-12-09 16:08:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-09 16:08:35,335 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 26 [2020-12-09 16:08:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:08:35,335 INFO L225 Difference]: With dead ends: 122 [2020-12-09 16:08:35,335 INFO L226 Difference]: Without dead ends: 63 [2020-12-09 16:08:35,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 125 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 68.0s TimeCoverageRelationStatistics Valid=416, Invalid=916, Unknown=0, NotChecked=0, Total=1332 [2020-12-09 16:08:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-09 16:08:35,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 46. [2020-12-09 16:08:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-09 16:08:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-12-09 16:08:35,346 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 26 [2020-12-09 16:08:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:08:35,346 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-12-09 16:08:35,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-12-09 16:08:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-12-09 16:08:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 16:08:35,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:08:35,347 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:08:35,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:08:35,950 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:08:35,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:08:35,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1267754724, now seen corresponding path program 1 times [2020-12-09 16:08:35,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:08:35,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744024138] [2020-12-09 16:08:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 16:08:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:08:36,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 16:08:36,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:08:36,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:08:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:08:37,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:08:37,205 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 16:08:37,205 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:08:38,131 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 16:08:40,410 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 16:08:43,239 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 16:08:46,878 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 16:08:49,555 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 16:08:51,915 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 16:08:51,915 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:08:53,144 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2020-12-09 16:08:54,782 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-12-09 16:08:54,782 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 16:08:57,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:08:57,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744024138] [2020-12-09 16:08:57,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [265917158] [2020-12-09 16:08:57,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 16:08:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:08:58,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 16:08:58,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:09:03,145 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 16:09:03,148 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 16:09:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:09:04,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:09:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:09:10,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875978838] [2020-12-09 16:09:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31c940eb-04b4-427b-be43-d328c17f4db9/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 16:09:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:09:10,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 16:09:10,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:09:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 16:09:12,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 16:09:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 16:09:14,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 16:09:14,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 8, 7, 6, 6] total 42 [2020-12-09 16:09:14,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28060827] [2020-12-09 16:09:14,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-12-09 16:09:14,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:09:14,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-12-09 16:09:14,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2020-12-09 16:09:14,201 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 42 states. [2020-12-09 16:09:19,043 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2020-12-09 16:09:19,463 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 23 [2020-12-09 16:09:19,927 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2020-12-09 16:09:20,278 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 27 [2020-12-09 16:09:20,915 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2020-12-09 16:09:21,232 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 30 [2020-12-09 16:09:24,105 WARN L197 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2020-12-09 16:09:26,466 WARN L197 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-12-09 16:09:29,002 WARN L197 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2020-12-09 16:09:29,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:09:29,274 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-12-09 16:09:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-09 16:09:29,282 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 42 [2020-12-09 16:09:29,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:09:29,282 INFO L225 Difference]: With dead ends: 52 [2020-12-09 16:09:29,282 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 16:09:29,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 47.4s TimeCoverageRelationStatistics Valid=639, Invalid=2223, Unknown=0, NotChecked=0, Total=2862 [2020-12-09 16:09:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 16:09:29,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 16:09:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 16:09:29,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 16:09:29,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-12-09 16:09:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:09:29,284 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 16:09:29,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-12-09 16:09:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 16:09:29,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 16:09:29,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 16:09:29,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 16:09:42,130 WARN L197 SmtUtils]: Spent 12.09 s on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2020-12-09 16:09:45,169 WARN L197 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-09 16:09:48,158 WARN L197 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-09 16:09:59,438 WARN L197 SmtUtils]: Spent 11.28 s on a formula simplification. DAG size of input: 97 DAG size of output: 74 [2020-12-09 16:10:02,246 WARN L197 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-09 16:10:02,392 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2020-12-09 16:10:05,278 WARN L197 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-09 16:10:17,335 WARN L197 SmtUtils]: Spent 12.06 s on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2020-12-09 16:10:17,337 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,337 INFO L262 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-09 16:10:17,337 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-09 16:10:17,337 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-09 16:10:17,337 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L258 CegarLoopResult]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse11 (bvmul ULTIMATE.start_main_~q~0 .cse7)) (.cse8 (bvmul ULTIMATE.start_main_~a~0 .cse7)) (.cse5 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse6 ((_ sign_extend 32) (_ bv2 32))) (.cse3 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse10 ((_ sign_extend 32) (_ bv1 32))) (.cse4 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse12 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse13 (= (bvadd .cse11 ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) .cse8) .cse5)) (.cse9 ((_ sign_extend 32) (_ bv0 32)))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsge .cse0 (bvmul .cse1 .cse2)) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= .cse0 (bvadd (bvmul ((_ sign_extend 32) (_ bv0 32)) .cse2) ULTIMATE.start_main_~r~0 (bvmul ((_ sign_extend 32) (_ bv1 32)) .cse1 .cse2)))))) .cse3 .cse4 (not (bvsge (bvadd .cse5 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse6)) .cse7)) .cse7)) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (= .cse8 ULTIMATE.start_main_~b~0) (not (bvsge (bvadd .cse5 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0) .cse7)) .cse7)) (= .cse9 (bvadd ULTIMATE.start_main_~q~0 (bvmul (bvmul .cse10 .cse6) (_ bv18446744073709551615 64)))) (= .cse5 (bvadd .cse11 ULTIMATE.start_main_~r~0))) (and (not (bvsge .cse5 (bvmul .cse6 .cse7))) (= (bvadd .cse10 .cse9) ULTIMATE.start_main_~q~0) .cse3 .cse4 (= ULTIMATE.start_main_~a~0 .cse10) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg .cse7) .cse5)) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) .cse12 .cse13) (and (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32)) (= .cse9 ULTIMATE.start_main_~q~0) .cse4 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) .cse12 .cse13 (= .cse9 ULTIMATE.start_main_~a~0) (= .cse5 ULTIMATE.start_main_~r~0)))))) [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,338 INFO L258 CegarLoopResult]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse4 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse6 (= .cse7 ULTIMATE.start_main_~r~0)) (.cse5 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (or (and (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) .cse0 .cse1 (= ULTIMATE.start_main_~a~0 .cse2) .cse3 .cse4 (= .cse5 ULTIMATE.start_main_~b~0) (bvsge ULTIMATE.start_main_~r~0 .cse5) .cse6) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse8 (bvmul .cse9 .cse5))) (and (bvsge .cse7 .cse8) .cse0 (= (bvmul .cse2 .cse9) ULTIMATE.start_main_~a~0) .cse1 (= .cse8 ULTIMATE.start_main_~b~0) .cse3 .cse4 (= (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse5) ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) (bvmul ULTIMATE.start_main_~a~0 .cse5)) .cse7) .cse6)))))) [2020-12-09 16:10:17,338 INFO L262 CegarLoopResult]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2020-12-09 16:10:17,339 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,339 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,339 INFO L258 CegarLoopResult]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse2 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse13 (bvmul ULTIMATE.start_main_~q~0 .cse2)) (.cse12 (bvmul ULTIMATE.start_main_~a~0 .cse2)) (.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse3 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse4 ((_ sign_extend 32) (_ bv0 32))) (.cse5 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse7 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse8 (= (bvadd .cse13 ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) .cse12) .cse0))) (or (and (not (bvsge .cse0 (bvmul .cse1 .cse2))) (= (bvadd .cse3 .cse4) ULTIMATE.start_main_~q~0) .cse5 .cse6 (= ULTIMATE.start_main_~a~0 .cse3) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg .cse2) .cse0)) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) .cse7 .cse8) (and (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse9 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse10 ((_ sign_extend 32) (_ bv2 32))) (.cse11 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsge .cse9 (bvmul .cse10 .cse11)) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= .cse9 (bvadd (bvmul ((_ sign_extend 32) (_ bv0 32)) .cse11) ULTIMATE.start_main_~r~0 (bvmul ((_ sign_extend 32) (_ bv1 32)) .cse10 .cse11)))))) .cse5 (not (bvsge (bvadd .cse0 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse1)) .cse2)) .cse2)) .cse6 (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (= .cse12 ULTIMATE.start_main_~b~0) (not (bvsge (bvadd .cse0 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0) .cse2)) .cse2)) (= .cse4 (bvadd ULTIMATE.start_main_~q~0 (bvmul (bvmul .cse3 .cse1) (_ bv18446744073709551615 64)))) (= .cse0 (bvadd .cse13 ULTIMATE.start_main_~r~0))) (and (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32)) (= .cse4 ULTIMATE.start_main_~q~0) .cse5 .cse6 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) .cse7 .cse8 (= .cse0 ULTIMATE.start_main_~r~0)))))) [2020-12-09 16:10:17,339 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,339 INFO L258 CegarLoopResult]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse6 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse12 (bvmul ULTIMATE.start_main_~q~0 .cse6)) (.cse9 (bvmul ULTIMATE.start_main_~a~0 .cse6)) (.cse4 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse5 ((_ sign_extend 32) (_ bv2 32))) (.cse11 ((_ sign_extend 32) (_ bv1 32))) (.cse10 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse7 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse8 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse13 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse14 (= (bvadd .cse12 ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) .cse9) .cse4))) (or (and (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (bvsge .cse0 (bvmul .cse1 .cse2)) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= .cse0 (bvadd (bvmul ((_ sign_extend 32) (_ bv0 32)) .cse2) ULTIMATE.start_main_~r~0 (bvmul ((_ sign_extend 32) (_ bv1 32)) .cse1 .cse2)))))) .cse3 (not (bvsge (bvadd .cse4 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 (bvmul ULTIMATE.start_main_~a~0 .cse5)) .cse6)) .cse6)) .cse7 .cse8 (= .cse9 ULTIMATE.start_main_~b~0) (not (bvsge (bvadd .cse4 (bvmul (_ bv18446744073709551615 64) (bvadd ULTIMATE.start_main_~q~0 ULTIMATE.start_main_~a~0) .cse6)) .cse6)) (= .cse10 (bvadd ULTIMATE.start_main_~q~0 (bvmul (bvmul .cse11 .cse5) (_ bv18446744073709551615 64)))) (= .cse4 (bvadd .cse12 ULTIMATE.start_main_~r~0))) (and (not (bvsge .cse4 (bvmul .cse5 .cse6))) (= (bvadd .cse11 .cse10) ULTIMATE.start_main_~q~0) .cse3 .cse7 (= ULTIMATE.start_main_~a~0 .cse11) (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg .cse6) .cse4)) .cse13 .cse14) (and (bvsle ULTIMATE.start_main_~y~0 (_ bv2 32)) (= .cse10 ULTIMATE.start_main_~q~0) .cse3 .cse7 .cse8 .cse13 .cse14 (= .cse4 ULTIMATE.start_main_~r~0)))))) [2020-12-09 16:10:17,339 INFO L262 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,339 INFO L258 CegarLoopResult]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse4 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse6 (= .cse7 ULTIMATE.start_main_~r~0)) (.cse5 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (or (and (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) .cse0 .cse1 (= ULTIMATE.start_main_~a~0 .cse2) .cse3 .cse4 (= .cse5 ULTIMATE.start_main_~b~0) (bvsge ULTIMATE.start_main_~r~0 .cse5) .cse6) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse8 (bvmul .cse9 .cse5))) (and (bvsge .cse7 .cse8) .cse0 (= (bvmul .cse2 .cse9) ULTIMATE.start_main_~a~0) .cse1 (= .cse8 ULTIMATE.start_main_~b~0) .cse3 .cse4 (= (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse5) ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) (bvmul ULTIMATE.start_main_~a~0 .cse5)) .cse7) .cse6)))))) [2020-12-09 16:10:17,339 INFO L262 CegarLoopResult]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L258 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse4 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse6 (= .cse7 ULTIMATE.start_main_~r~0)) (.cse5 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (or (and (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) .cse0 .cse1 (= ULTIMATE.start_main_~a~0 .cse2) .cse3 .cse4 (= .cse5 ULTIMATE.start_main_~b~0) (bvsge ULTIMATE.start_main_~r~0 .cse5) .cse6) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse8 (bvmul .cse9 .cse5))) (and (bvsge .cse7 .cse8) .cse0 (= (bvmul .cse2 .cse9) ULTIMATE.start_main_~a~0) .cse1 (= .cse8 ULTIMATE.start_main_~b~0) .cse3 .cse4 (= (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse5) ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) (bvmul ULTIMATE.start_main_~a~0 .cse5)) .cse7) .cse6)))))) [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L258 CegarLoopResult]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (let ((.cse0 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32))) (.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse4 (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32))))) (.cse6 (= .cse7 ULTIMATE.start_main_~r~0)) (.cse5 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (or (and (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) .cse0 .cse1 (= ULTIMATE.start_main_~a~0 .cse2) .cse3 .cse4 (= .cse5 ULTIMATE.start_main_~b~0) (bvsge ULTIMATE.start_main_~r~0 .cse5) .cse6) (let ((.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse8 (bvmul .cse9 .cse5))) (and (bvsge .cse7 .cse8) .cse0 (= (bvmul .cse2 .cse9) ULTIMATE.start_main_~a~0) .cse1 (= .cse8 ULTIMATE.start_main_~b~0) .cse3 .cse4 (= (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse5) ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) (bvmul ULTIMATE.start_main_~a~0 .cse5)) .cse7) .cse6)))))) [2020-12-09 16:10:17,340 INFO L265 CegarLoopResult]: At program point L65(lines 22 66) the Hoare annotation is: true [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L258 CegarLoopResult]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse1 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)) (.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (and (bvsge .cse0 (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse1)) (= ((_ sign_extend 32) (_ bv0 32)) ULTIMATE.start_main_~q~0) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= ULTIMATE.start_main_~a~0 ((_ sign_extend 32) (_ bv1 32))) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv2 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) (= .cse1 ULTIMATE.start_main_~b~0) (= .cse0 ULTIMATE.start_main_~r~0))) [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L265 CegarLoopResult]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,340 INFO L262 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,341 INFO L262 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-12-09 16:10:17,341 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 16:10:17,341 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 16:10:17,345 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) 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:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2020-12-09 16:10:17,348 INFO L168 Benchmark]: Toolchain (without parser) took 225636.03 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 41.5 MB in the beginning and 28.6 MB in the end (delta: 12.8 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2020-12-09 16:10:17,348 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:10:17,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.88 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 30.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:10:17,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 60.8 MB. Free memory was 30.7 MB in the beginning and 44.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:10:17,349 INFO L168 Benchmark]: Boogie Preprocessor took 20.62 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 42.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:10:17,350 INFO L168 Benchmark]: RCFGBuilder took 558.19 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.8 MB in the beginning and 55.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-09 16:10:17,350 INFO L168 Benchmark]: TraceAbstraction took 224827.43 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 28.6 MB in the end (delta: 26.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-12-09 16:10:17,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 186.88 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 30.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 60.8 MB. Free memory was 30.7 MB in the beginning and 44.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.62 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 42.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 558.19 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 42.8 MB in the beginning and 55.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 224827.43 ms. Allocated memory is still 73.4 MB. Free memory was 55.0 MB in the beginning and 28.6 MB in the end (delta: 26.3 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) 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. Received shutdown request...