./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1180ef32ce1b05b04d6987a02d3d281282e8367d .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:11,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:11,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:11,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:11,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:11,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:11,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:11,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:11,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:11,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:11,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:11,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:11,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:11,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:11,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:11,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:11,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:11,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:11,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:11,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:11,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:11,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:11,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:11,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:11,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:11,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:11,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:11,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:11,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:11,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:11,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:11,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:11,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:11,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:11,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:11,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:11,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:11,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:11,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:11,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:11,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:11,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:11,167 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:11,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:11,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:11,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:11,169 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:11,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:11,170 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:11,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:11,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:11,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:11,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:11,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:11,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:11,172 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:11,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:11,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:11,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:11,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:11,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:11,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:11,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:11,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:11,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:11,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:11,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:11,175 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:11,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:11,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:11,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/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(__VERIFIER_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 -> 1180ef32ce1b05b04d6987a02d3d281282e8367d [2019-10-22 08:55:11,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:11,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:11,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:11,221 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:11,222 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:11,222 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/fermat2.c [2019-10-22 08:55:11,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/data/663d22803/5a2a92779fb1416da1b80f85903f7068/FLAGd2c6e21d0 [2019-10-22 08:55:11,675 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:11,675 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/sv-benchmarks/c/nla-digbench/fermat2.c [2019-10-22 08:55:11,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/data/663d22803/5a2a92779fb1416da1b80f85903f7068/FLAGd2c6e21d0 [2019-10-22 08:55:12,030 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/data/663d22803/5a2a92779fb1416da1b80f85903f7068 [2019-10-22 08:55:12,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:12,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:12,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:12,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:12,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:12,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80a8456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12, skipping insertion in model container [2019-10-22 08:55:12,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,056 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:12,077 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:12,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:12,282 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:12,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:12,408 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:12,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12 WrapperNode [2019-10-22 08:55:12,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:12,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:12,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:12,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:12,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:12,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:12,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:12,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:12,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... [2019-10-22 08:55:12,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:12,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:12,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:12,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:12,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/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 [2019-10-22 08:55:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:12,680 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:12,680 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 08:55:12,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:12 BoogieIcfgContainer [2019-10-22 08:55:12,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:12,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:12,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:12,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:12,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:12" (1/3) ... [2019-10-22 08:55:12,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39365180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:12, skipping insertion in model container [2019-10-22 08:55:12,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:12" (2/3) ... [2019-10-22 08:55:12,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39365180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:12, skipping insertion in model container [2019-10-22 08:55:12,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:12" (3/3) ... [2019-10-22 08:55:12,689 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat2.c [2019-10-22 08:55:12,699 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:12,706 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 08:55:12,718 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 08:55:12,739 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:12,740 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:12,740 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:12,740 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:12,740 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:12,740 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:12,740 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:12,741 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-22 08:55:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 08:55:12,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:12,761 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 08:55:12,763 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-10-22 08:55:12,777 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:12,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659922453] [2019-10-22 08:55:12,778 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:12,778 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:12,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:12,831 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:55:12,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902659242] [2019-10-22 08:55:12,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/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 [2019-10-22 08:55:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:12,872 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 08:55:12,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:13,043 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-10-22 08:55:13,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:55:17,856 WARN L838 $PredicateComparison]: unable to prove that (or (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (and (exists ((ULTIMATE.start_main_~u~0 Int) (ULTIMATE.start_main_~r~0 Int)) (let ((.cse2 (div (+ (- ULTIMATE.start_main_~u~0) 1) (- 2)))) (let ((.cse0 (* .cse2 .cse2))) (and (= 1 (mod (+ .cse0 ULTIMATE.start_main_~r~0) 2)) (not (= (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) 1) (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 .cse0)))) (< (+ (let ((.cse1 (+ .cse2 (- 1)))) (* .cse1 .cse1)) ULTIMATE.start_main_~r~0) .cse0) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0))))) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond))) is different from false [2019-10-22 08:55:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:20,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659922453] [2019-10-22 08:55:20,037 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:55:20,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902659242] [2019-10-22 08:55:20,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:20,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:20,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201341710] [2019-10-22 08:55:20,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:20,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:20,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:20,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-10-22 08:55:20,056 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-10-22 08:55:22,011 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 27 [2019-10-22 08:55:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:23,480 INFO L93 Difference]: Finished difference Result 41 states and 56 transitions. [2019-10-22 08:55:23,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:55:23,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 08:55:23,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:23,500 INFO L225 Difference]: With dead ends: 41 [2019-10-22 08:55:23,500 INFO L226 Difference]: Without dead ends: 19 [2019-10-22 08:55:23,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=8, Invalid=7, Unknown=1, NotChecked=4, Total=20 [2019-10-22 08:55:23,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-10-22 08:55:23,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2019-10-22 08:55:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 08:55:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-10-22 08:55:23,545 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-10-22 08:55:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:23,546 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-10-22 08:55:23,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-10-22 08:55:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:55:23,546 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:23,546 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:23,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:23,747 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:23,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:23,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1361018346, now seen corresponding path program 1 times [2019-10-22 08:55:23,748 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:23,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521765172] [2019-10-22 08:55:23,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:23,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:23,751 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 08:55:23,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884775760] [2019-10-22 08:55:23,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:23,778 WARN L254 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-22 08:55:23,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:55:27,949 WARN L191 SmtUtils]: Spent 4.14 s on a formula simplification that was a NOOP. DAG size: 30 [2019-10-22 08:55:27,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:55:28,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:55:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:28,069 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521765172] [2019-10-22 08:55:28,069 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 08:55:28,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884775760] [2019-10-22 08:55:28,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:28,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:28,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687548353] [2019-10-22 08:55:28,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:28,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:28,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:28,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:28,073 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2019-10-22 08:55:30,167 WARN L191 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-10-22 08:55:30,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:30,301 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-10-22 08:55:30,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:30,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-10-22 08:55:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:30,302 INFO L225 Difference]: With dead ends: 13 [2019-10-22 08:55:30,302 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:30,303 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:30,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:30,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:30,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:30,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-10-22 08:55:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:30,304 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:30,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:30,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:30,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:55:30,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:55:36,655 WARN L191 SmtUtils]: Spent 6.12 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-10-22 08:55:36,657 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:55:36,658 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:55:36,658 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:55:36,658 INFO L439 ceAbstractionStarter]: At program point L7-2(line 30) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-10-22 08:55:36,658 INFO L443 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-10-22 08:55:36,658 INFO L446 ceAbstractionStarter]: At program point L7-5(lines 6 12) the Hoare annotation is: true [2019-10-22 08:55:36,659 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-10-22 08:55:36,659 INFO L439 ceAbstractionStarter]: At program point L32-2(lines 28 39) the Hoare annotation is: (let ((.cse2 (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))))) (or (let ((.cse0 (div (+ (- ULTIMATE.start_main_~u~0) 1) (- 2)))) (and (= 1 (mod ULTIMATE.start_main_~A~0 2)) (= (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0) (* .cse0 .cse0)) (< (let ((.cse1 (+ .cse0 (- 1)))) (* .cse1 .cse1)) ULTIMATE.start_main_~A~0) (= ULTIMATE.start_main_~v~0 1) .cse2)) (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse3 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse3 .cse3)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse2))) [2019-10-22 08:55:36,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:55:36,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:55:36,659 INFO L443 ceAbstractionStarter]: For program point L28-2(lines 28 39) no Hoare annotation was computed. [2019-10-22 08:55:36,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 08:55:36,659 INFO L446 ceAbstractionStarter]: At program point L43(lines 14 44) the Hoare annotation is: true [2019-10-22 08:55:36,660 INFO L443 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:55:36,660 INFO L443 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-10-22 08:55:36,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:36 BoogieIcfgContainer [2019-10-22 08:55:36,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:36,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:36,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:36,684 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:36,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:12" (3/4) ... [2019-10-22 08:55:36,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:36,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 08:55:36,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:55:36,725 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == A % 2 && A + r == (-u + 1) / -2 * ((-u + 1) / -2)) && ((-u + 1) / -2 + -1) * ((-u + 1) / -2 + -1) < A) && v == 1) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) || (((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) [2019-10-22 08:55:36,725 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-10-22 08:55:36,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2a6a35c0-1908-4af4-a08c-60fa8f694a5d/bin/uautomizer/witness.graphml [2019-10-22 08:55:36,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:36,762 INFO L168 Benchmark]: Toolchain (without parser) took 24727.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -60.4 MB). Peak memory consumption was 69.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:36,763 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:36,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:36,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:36,764 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:36,764 INFO L168 Benchmark]: RCFGBuilder took 205.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:36,765 INFO L168 Benchmark]: TraceAbstraction took 24000.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:36,765 INFO L168 Benchmark]: Witness Printer took 77.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:36,769 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24000.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 77.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: 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 - InvariantResult [Line: 30]: Loop Invariant [2019-10-22 08:55:36,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,778 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,779 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2019-10-22 08:55:36,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,780 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-10-22 08:55:36,781 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((((1 == A % 2 && A + r == (-u + 1) / -2 * ((-u + 1) / -2)) && ((-u + 1) / -2 + -1) * ((-u + 1) / -2 + -1) < A) && v == 1) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) || (((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 23.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.1s, HoareTripleCheckerStatistics: 10 SDtfs, 21 SDslu, 20 SDs, 0 SdLazy, 29 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 139 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 6.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 11.4s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 5 QuantifiedInterpolants, 1326 SizeOfPredicates, 16 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...