./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95545cab39e65c643c98f6bfae32ce6d423b76c7 ................................................................................................................................................................................................................................................................................................... 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_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95545cab39e65c643c98f6bfae32ce6d423b76c7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-29 19:48:35,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:48:35,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:48:35,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:48:35,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:48:35,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:48:35,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:48:35,511 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:48:35,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:48:35,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:48:35,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:48:35,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:48:35,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:48:35,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:48:35,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:48:35,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:48:35,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:48:35,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:48:35,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:48:35,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:48:35,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:48:35,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:48:35,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:48:35,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:48:35,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:48:35,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:48:35,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:48:35,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:48:35,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:48:35,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:48:35,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:48:35,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:48:35,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:48:35,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:48:35,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:48:35,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:48:35,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:48:35,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:48:35,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:48:35,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:48:35,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:48:35,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:48:35,600 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:48:35,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:48:35,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:48:35,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:48:35,602 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:48:35,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:48:35,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:48:35,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:48:35,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:48:35,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:48:35,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:48:35,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:48:35,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:48:35,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:48:35,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:48:35,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:48:35,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:48:35,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:48:35,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:48:35,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:48:35,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:48:35,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:48:35,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:48:35,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:48:35,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:48:35,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:48:35,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:48:35,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:48:35,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:48:35,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95545cab39e65c643c98f6bfae32ce6d423b76c7 [2020-11-29 19:48:35,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:48:35,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:48:35,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:48:35,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:48:35,938 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:48:35,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-29 19:48:36,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/d94442d57/023f567354c546f0af001ae09f43bc2e/FLAGb7cab0c4d [2020-11-29 19:48:36,522 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:48:36,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-29 19:48:36,574 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/d94442d57/023f567354c546f0af001ae09f43bc2e/FLAGb7cab0c4d [2020-11-29 19:48:36,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/d94442d57/023f567354c546f0af001ae09f43bc2e [2020-11-29 19:48:36,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:48:36,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:48:36,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:36,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:48:36,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:48:36,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:36" (1/1) ... [2020-11-29 19:48:36,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df82a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:36, skipping insertion in model container [2020-11-29 19:48:36,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:36" (1/1) ... [2020-11-29 19:48:36,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:48:36,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:48:37,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:37,114 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:48:37,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:37,155 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:48:37,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37 WrapperNode [2020-11-29 19:48:37,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:37,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:37,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:48:37,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:48:37,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:37,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:48:37,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:48:37,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:48:37,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... [2020-11-29 19:48:37,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:48:37,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:48:37,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:48:37,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:48:37,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:48:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:48:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:48:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:48:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:48:37,632 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:48:37,633 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-29 19:48:37,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:37 BoogieIcfgContainer [2020-11-29 19:48:37,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:48:37,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:48:37,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:48:37,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:48:37,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:48:36" (1/3) ... [2020-11-29 19:48:37,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b707b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:48:37, skipping insertion in model container [2020-11-29 19:48:37,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:37" (2/3) ... [2020-11-29 19:48:37,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b707b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:48:37, skipping insertion in model container [2020-11-29 19:48:37,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:37" (3/3) ... [2020-11-29 19:48:37,669 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.c [2020-11-29 19:48:37,682 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:48:37,701 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 19:48:37,715 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 19:48:37,744 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:48:37,744 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:48:37,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:48:37,745 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:48:37,745 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:48:37,745 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:48:37,745 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:48:37,746 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:48:37,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-29 19:48:37,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:48:37,795 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:48:37,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:37,796 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:48:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-11-29 19:48:37,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:48:37,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984729437] [2020-11-29 19:48:37,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:48:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:38,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984729437] [2020-11-29 19:48:38,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:48:38,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:48:38,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638990941] [2020-11-29 19:48:38,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:48:38,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:48:38,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:48:38,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:48:38,071 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-11-29 19:48:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:48:38,096 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2020-11-29 19:48:38,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:48:38,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 19:48:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:48:38,120 INFO L225 Difference]: With dead ends: 45 [2020-11-29 19:48:38,125 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 19:48:38,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:48:38,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 19:48:38,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 19:48:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 19:48:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-29 19:48:38,175 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2020-11-29 19:48:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:48:38,176 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-29 19:48:38,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:48:38,176 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-29 19:48:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:48:38,177 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:48:38,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:38,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:48:38,178 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:48:38,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:38,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-11-29 19:48:38,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:48:38,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604961710] [2020-11-29 19:48:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:48:38,204 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 19:48:38,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1330706176] [2020-11-29 19:48:38,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:48:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:38,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2020-11-29 19:48:38,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:38,491 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 1] term [2020-11-29 19:48:38,492 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:38,660 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 16 [2020-11-29 19:48:38,668 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 19:48:38,668 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:38,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604961710] [2020-11-29 19:48:38,797 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 19:48:38,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330706176] [2020-11-29 19:48:38,797 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-11-29 19:48:38,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:48:38,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-11-29 19:48:38,798 ERROR L205 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2020-11-29 19:48:38,798 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:48:39,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 19:48:39,023 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-11-29 19:48:39,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:48:39 BoogieIcfgContainer [2020-11-29 19:48:39,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:48:39,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:48:39,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:48:39,024 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:48:39,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:37" (3/4) ... [2020-11-29 19:48:39,028 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:48:39,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:48:39,030 INFO L168 Benchmark]: Toolchain (without parser) took 2141.58 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 45.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:39,031 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:48:39,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.25 ms. Allocated memory is still 86.0 MB. Free memory was 65.2 MB in the beginning and 55.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:39,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.74 ms. Allocated memory is still 86.0 MB. Free memory was 55.3 MB in the beginning and 53.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:39,034 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 52.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:48:39,034 INFO L168 Benchmark]: RCFGBuilder took 405.33 ms. Allocated memory is still 86.0 MB. Free memory was 52.5 MB in the beginning and 39.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:39,035 INFO L168 Benchmark]: TraceAbstraction took 1386.11 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 38.8 MB in the beginning and 46.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:48:39,036 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 109.1 MB. Free memory was 46.3 MB in the beginning and 45.7 MB in the end (delta: 567.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:48:39,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 61.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.25 ms. Allocated memory is still 86.0 MB. Free memory was 65.2 MB in the beginning and 55.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.74 ms. Allocated memory is still 86.0 MB. Free memory was 55.3 MB in the beginning and 53.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 52.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 405.33 ms. Allocated memory is still 86.0 MB. Free memory was 52.5 MB in the beginning and 39.3 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1386.11 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 38.8 MB in the beginning and 46.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 109.1 MB. Free memory was 46.3 MB in the beginning and 45.7 MB in the end (delta: 567.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L20] int A, R; [L21] long long u, v, r; [L22] A = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L24] R = __VERIFIER_nondet_int() [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L9] COND FALSE !(!cond) [L31] u = ((long long) 2 * R) + 1 [L32] v = 1 [L33] r = ((long long) R * R) - A [L35] COND TRUE 1 [L12] COND TRUE !(cond) [L5] __assert_fail("0", "fermat2-ll.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:48:41,970 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 19:48:42,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:48:42,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:48:42,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:48:42,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:48:42,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:48:42,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:48:42,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:48:42,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:48:42,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:48:42,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:48:42,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:48:42,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:48:42,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:48:42,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:48:42,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:48:42,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:48:42,166 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:48:42,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:48:42,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:48:42,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:48:42,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:48:42,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:48:42,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:48:42,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:48:42,169 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:48:42,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:48:42,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:48:42,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:48:42,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:48:42,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:48:42,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:48:42,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:48:42,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:48:42,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:48:42,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:48:42,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:48:42,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:48:42,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:48:42,173 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:48:42,173 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:48:42,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:48:42,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:48:42,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:48:42,174 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_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95545cab39e65c643c98f6bfae32ce6d423b76c7 [2020-11-29 19:48:42,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:48:42,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:48:42,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:48:42,697 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:48:42,698 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:48:42,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-29 19:48:42,776 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/a022d37c9/8317359858d948e9be4ad1c7fc336423/FLAG64d52f315 [2020-11-29 19:48:43,390 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:48:43,391 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-29 19:48:43,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/a022d37c9/8317359858d948e9be4ad1c7fc336423/FLAG64d52f315 [2020-11-29 19:48:43,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/data/a022d37c9/8317359858d948e9be4ad1c7fc336423 [2020-11-29 19:48:43,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:48:43,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:48:43,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:43,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:48:43,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:48:43,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:43" (1/1) ... [2020-11-29 19:48:43,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f956444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:43, skipping insertion in model container [2020-11-29 19:48:43,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:48:43" (1/1) ... [2020-11-29 19:48:43,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:48:43,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:48:43,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:43,979 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:48:44,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:48:44,083 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:48:44,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44 WrapperNode [2020-11-29 19:48:44,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:48:44,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:44,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:48:44,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:48:44,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:48:44,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:48:44,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:48:44,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:48:44,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... [2020-11-29 19:48:44,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:48:44,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:48:44,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:48:44,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:48:44,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:48:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:48:44,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:48:44,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:48:44,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:48:45,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:48:45,547 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-29 19:48:45,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:45 BoogieIcfgContainer [2020-11-29 19:48:45,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:48:45,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:48:45,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:48:45,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:48:45,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:48:43" (1/3) ... [2020-11-29 19:48:45,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de49fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:48:45, skipping insertion in model container [2020-11-29 19:48:45,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:48:44" (2/3) ... [2020-11-29 19:48:45,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de49fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:48:45, skipping insertion in model container [2020-11-29 19:48:45,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:48:45" (3/3) ... [2020-11-29 19:48:45,567 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.c [2020-11-29 19:48:45,580 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:48:45,586 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 19:48:45,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 19:48:45,644 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:48:45,645 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:48:45,645 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:48:45,645 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:48:45,646 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:48:45,646 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:48:45,646 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:48:45,646 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:48:45,666 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-29 19:48:45,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:48:45,679 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:48:45,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:45,681 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:48:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:45,689 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2020-11-29 19:48:45,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:48:45,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526449281] [2020-11-29 19:48:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:48:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:46,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 19:48:46,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:46,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:46,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:48:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:46,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526449281] [2020-11-29 19:48:46,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:48:46,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 19:48:46,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915006016] [2020-11-29 19:48:46,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:48:46,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:48:46,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:48:46,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:48:46,102 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-11-29 19:48:46,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:48:46,124 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2020-11-29 19:48:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:48:46,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 19:48:46,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:48:46,136 INFO L225 Difference]: With dead ends: 45 [2020-11-29 19:48:46,136 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 19:48:46,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:48:46,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 19:48:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 19:48:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 19:48:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-29 19:48:46,176 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2020-11-29 19:48:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:48:46,176 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-29 19:48:46,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:48:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-29 19:48:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:48:46,177 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:48:46,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:48:46,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:48:46,394 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:48:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:48:46,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2020-11-29 19:48:46,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:48:46,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345705071] [2020-11-29 19:48:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:48:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:48:46,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 19:48:46,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:48:46,724 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:46,867 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:47,001 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:48:47,462 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 19:48:47,485 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:48:47,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:47,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:48:50,924 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 19:48:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:48:50,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345705071] [2020-11-29 19:48:50,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:48:50,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 4] imperfect sequences [] total 12 [2020-11-29 19:48:50,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537645022] [2020-11-29 19:48:50,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 19:48:50,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:48:50,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 19:48:50,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-29 19:48:50,972 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 12 states. [2020-11-29 19:48:53,265 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 13 [2020-11-29 19:48:53,961 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-11-29 19:48:54,745 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-11-29 19:49:01,105 WARN L193 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2020-11-29 19:49:04,635 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-11-29 19:49:10,985 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 16 [2020-11-29 19:49:12,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:49:12,210 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-11-29 19:49:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 19:49:12,232 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-11-29 19:49:12,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:49:12,233 INFO L225 Difference]: With dead ends: 37 [2020-11-29 19:49:12,233 INFO L226 Difference]: Without dead ends: 35 [2020-11-29 19:49:12,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-11-29 19:49:12,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-29 19:49:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2020-11-29 19:49:12,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 19:49:12,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-11-29 19:49:12,251 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 13 [2020-11-29 19:49:12,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:49:12,252 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-11-29 19:49:12,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 19:49:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-11-29 19:49:12,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:49:12,253 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:49:12,253 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:49:12,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 19:49:12,454 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:49:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:49:12,455 INFO L82 PathProgramCache]: Analyzing trace with hash 2132885218, now seen corresponding path program 1 times [2020-11-29 19:49:12,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:49:12,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366399856] [2020-11-29 19:49:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:49:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:49:12,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 19:49:12,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:49:12,697 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:49:12,755 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:49:12,841 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:49:13,282 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 19:49:13,907 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2020-11-29 19:49:13,921 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 19:49:14,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:14,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:49:20,083 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 19:49:25,946 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 23 [2020-11-29 19:49:26,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:49:26,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366399856] [2020-11-29 19:49:26,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:49:26,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 5] imperfect sequences [] total 14 [2020-11-29 19:49:26,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842275230] [2020-11-29 19:49:26,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 19:49:26,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:49:26,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 19:49:26,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-11-29 19:49:26,055 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 14 states. [2020-11-29 19:49:29,364 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 12 [2020-11-29 19:49:32,608 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-11-29 19:49:33,490 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-11-29 19:49:34,839 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 56 DAG size of output: 37 [2020-11-29 19:49:46,317 WARN L193 SmtUtils]: Spent 9.73 s on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-11-29 19:49:58,504 WARN L193 SmtUtils]: Spent 9.84 s on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-11-29 19:50:09,559 WARN L193 SmtUtils]: Spent 9.42 s on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-29 19:50:17,686 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (bvsle c_ULTIMATE.start_main_~A~0 (_ bv2 32))) (.cse0 (= (_ bv1 32) (bvsrem c_ULTIMATE.start_main_~A~0 (_ bv2 32)))) (.cse6 (bvsge c_ULTIMATE.start_main_~A~0 (_ bv0 32))) (.cse5 (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond)) (.cse3 (bvsle c_ULTIMATE.start_main_~R~0 (_ bv2 32))) (.cse4 (bvsge c_ULTIMATE.start_main_~R~0 (_ bv0 32))) (.cse7 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and .cse0 (= (let ((.cse1 ((_ sign_extend 32) (_ bv2 32)))) (bvadd (bvmul c_ULTIMATE.start_main_~v~0 .cse1) (bvmul c_ULTIMATE.start_main_~u~0 c_ULTIMATE.start_main_~u~0) (bvneg (bvmul .cse1 c_ULTIMATE.start_main_~u~0)) (bvneg (bvmul c_ULTIMATE.start_main_~v~0 c_ULTIMATE.start_main_~v~0)))) (bvmul ((_ sign_extend 32) (_ bv4 32)) ((_ sign_extend 32) c_ULTIMATE.start_main_~A~0))) .cse2 .cse3 .cse4 (or (and .cse2 .cse5 .cse6) (and .cse7 (or (not .cse2) (not .cse6)))) (or (and (not .cse0) .cse7) (and .cse0 .cse5)) .cse6 (or (and .cse3 .cse5 .cse4) (and (or (not .cse3) (not .cse4)) .cse7)))) is different from false [2020-11-29 19:50:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:50:20,300 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-11-29 19:50:20,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-29 19:50:20,304 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2020-11-29 19:50:20,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:50:20,305 INFO L225 Difference]: With dead ends: 34 [2020-11-29 19:50:20,306 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 19:50:20,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 53.9s TimeCoverageRelationStatistics Valid=174, Invalid=381, Unknown=1, NotChecked=44, Total=600 [2020-11-29 19:50:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 19:50:20,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-11-29 19:50:20,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 19:50:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-11-29 19:50:20,314 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 16 [2020-11-29 19:50:20,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:50:20,315 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-11-29 19:50:20,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 19:50:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-11-29 19:50:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 19:50:20,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:50:20,316 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:50:20,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 19:50:20,529 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:50:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:50:20,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1283461158, now seen corresponding path program 1 times [2020-11-29 19:50:20,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:50:20,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395468622] [2020-11-29 19:50:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa73c3fd-1d93-4460-8862-20f6e819bcac/bin/uautomizer/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 [2020-11-29 19:50:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:50:20,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 19:50:20,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:50:20,876 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:50:20,916 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:50:22,857 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 19:50:22,859 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:50:33,035 WARN L193 SmtUtils]: Spent 9.68 s on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-11-29 19:50:42,854 WARN L193 SmtUtils]: Spent 4.93 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 19:50:42,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:51:06,407 WARN L193 SmtUtils]: Spent 10.92 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 19:51:28,092 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 23 [2020-11-29 19:51:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 19:51:30,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:51:39,044 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-29 19:51:46,717 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 19:51:46,719 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:51:51,158 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 19:52:01,574 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-29 19:52:01,577 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:52:10,676 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 19:52:22,139 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 19:52:22,148 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 19:52:29,375 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-29 19:52:35,148 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-11-29 19:52:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 19:52:35,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395468622] [2020-11-29 19:52:35,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:52:35,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2020-11-29 19:52:35,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970059474] [2020-11-29 19:52:35,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-29 19:52:35,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:52:35,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-29 19:52:35,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=264, Unknown=19, NotChecked=0, Total=380 [2020-11-29 19:52:35,212 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 20 states. [2020-11-29 19:53:18,229 WARN L193 SmtUtils]: Spent 25.04 s on a formula simplification. DAG size of input: 36 DAG size of output: 19 [2020-11-29 19:53:45,413 WARN L193 SmtUtils]: Spent 23.70 s on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2020-11-29 19:53:54,646 WARN L193 SmtUtils]: Spent 6.55 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-29 19:54:05,478 WARN L193 SmtUtils]: Spent 8.82 s on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2020-11-29 19:54:06,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:54:06,021 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-11-29 19:54:06,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 19:54:06,065 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-11-29 19:54:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:54:06,066 INFO L225 Difference]: With dead ends: 30 [2020-11-29 19:54:06,066 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:54:06,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 210.2s TimeCoverageRelationStatistics Valid=174, Invalid=454, Unknown=22, NotChecked=0, Total=650 [2020-11-29 19:54:06,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:54:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:54:06,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:54:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:54:06,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-29 19:54:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:54:06,068 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:54:06,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-29 19:54:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:54:06,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:54:06,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 19:54:06,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:54:13,140 WARN L193 SmtUtils]: Spent 6.79 s on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2020-11-29 19:54:20,488 WARN L193 SmtUtils]: Spent 7.35 s on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 46) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-29 19:54:20,524 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L270 CegarLoopResult]: At program point L12-1(line 37) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse4 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse3 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse5 ((_ sign_extend 32) (_ bv0 32)))) (and (= ULTIMATE.start_main_~v~0 .cse0) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvsle ULTIMATE.start_main_~A~0 (_ bv2 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse1 ((_ sign_extend 32) ULTIMATE.start_main_~R~0))) (and (bvsle ULTIMATE.start_main_~R~0 (_ bv2 32)) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (bvmul .cse1 .cse1))) (= ULTIMATE.start_main_~u~0 (bvadd ((_ sign_extend 32) (_ bv1 32)) (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse1)))))) (bvslt (let ((.cse2 (bvadd .cse3 (bvneg .cse0)))) (bvmul .cse2 .cse2)) .cse4) (= .cse5 (bvadd (bvneg .cse4) (bvmul .cse3 .cse3))) (= .cse5 ULTIMATE.start_main_~r~0))) [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L277 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: true [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L8(lines 8 10) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:54:20,525 INFO L277 CegarLoopResult]: At program point L50(lines 19 51) the Hoare annotation is: true [2020-11-29 19:54:20,525 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-29 19:54:20,526 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-29 19:54:20,526 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-11-29 19:54:20,526 INFO L274 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed. [2020-11-29 19:54:20,526 INFO L274 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed. [2020-11-29 19:54:20,532 INFO L274 CegarLoopResult]: For program point L9-6(line 9) no Hoare annotation was computed. [2020-11-29 19:54:20,532 INFO L274 CegarLoopResult]: For program point L39(lines 39 45) no Hoare annotation was computed. [2020-11-29 19:54:20,533 INFO L270 CegarLoopResult]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse4 ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (.cse3 ((_ sign_extend 32) ULTIMATE.start_main_~R~0)) (.cse5 ((_ sign_extend 32) (_ bv0 32)))) (and (= ULTIMATE.start_main_~v~0 .cse0) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsle ULTIMATE.start_main_~A~0 (_ bv2 32)) (exists ((ULTIMATE.start_main_~R~0 (_ BitVec 32))) (let ((.cse1 ((_ sign_extend 32) ULTIMATE.start_main_~R~0))) (and (bvsle ULTIMATE.start_main_~R~0 (_ bv2 32)) (bvsge ULTIMATE.start_main_~R~0 (_ bv0 32)) (= ULTIMATE.start_main_~r~0 (bvadd (bvneg ((_ sign_extend 32) ULTIMATE.start_main_~A~0)) (bvmul .cse1 .cse1))) (= ULTIMATE.start_main_~u~0 (bvadd ((_ sign_extend 32) (_ bv1 32)) (bvmul ((_ sign_extend 32) (_ bv2 32)) .cse1)))))) (bvslt (let ((.cse2 (bvadd .cse3 (bvneg .cse0)))) (bvmul .cse2 .cse2)) .cse4) (= .cse5 (bvadd (bvneg .cse4) (bvmul .cse3 .cse3))) (= .cse5 ULTIMATE.start_main_~r~0))) [2020-11-29 19:54:20,539 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:209) 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:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) 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:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) 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) [2020-11-29 19:54:20,546 INFO L168 Benchmark]: Toolchain (without parser) took 336817.25 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 47.6 MB in the beginning and 54.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:20,547 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:20,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.29 ms. Allocated memory is still 69.2 MB. Free memory was 47.3 MB in the beginning and 51.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:20,548 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:54:20,549 INFO L168 Benchmark]: Boogie Preprocessor took 33.02 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:20,550 INFO L168 Benchmark]: RCFGBuilder took 1386.33 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 34.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:20,551 INFO L168 Benchmark]: TraceAbstraction took 334988.98 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 34.2 MB in the beginning and 54.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:54:20,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.29 ms. Allocated memory is still 69.2 MB. Free memory was 47.3 MB in the beginning and 51.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.02 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1386.33 ms. Allocated memory is still 69.2 MB. Free memory was 48.6 MB in the beginning and 34.7 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 334988.98 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 34.2 MB in the beginning and 54.4 MB in the end (delta: -20.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 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:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...