./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/geo1-ll.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_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/geo1-ll.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/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 85c680919ef2be50dbef128bdd64215f43c0b905 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:33:16,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:33:16,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:33:16,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:33:16,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:33:16,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:33:16,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:33:16,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:33:16,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:33:16,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:33:16,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:33:16,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:33:16,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:33:16,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:33:16,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:33:16,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:33:16,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:33:16,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:33:16,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:33:16,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:33:16,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:33:16,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:33:16,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:33:16,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:33:16,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:33:16,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:33:16,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:33:16,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:33:16,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:33:16,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:33:16,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:33:16,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:33:16,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:33:16,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:33:16,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:33:16,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:33:16,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:33:16,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:33:16,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:33:16,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:33:16,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:33:16,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:33:16,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:33:16,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:33:16,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:33:16,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:33:16,289 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:33:16,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:33:16,290 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:33:16,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:33:16,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:33:16,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:33:16,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:33:16,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:33:16,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:33:16,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:33:16,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:33:16,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:33:16,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:33:16,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:33:16,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:33:16,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:33:16,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:33:16,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:33:16,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:33:16,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:33:16,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:33:16,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:33:16,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:33:16,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:33:16,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:33:16,296 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_5000ffe4-e77c-473c-b8d4-2c01555587cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85c680919ef2be50dbef128bdd64215f43c0b905 [2020-11-29 23:33:16,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:33:16,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:33:16,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:33:16,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:33:16,676 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:33:16,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/geo1-ll.c [2020-11-29 23:33:16,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/data/b3db94add/103370c8d3d44402a266d4ff08de8644/FLAG13d58456c [2020-11-29 23:33:17,278 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:33:17,279 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/sv-benchmarks/c/nla-digbench/geo1-ll.c [2020-11-29 23:33:17,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/data/b3db94add/103370c8d3d44402a266d4ff08de8644/FLAG13d58456c [2020-11-29 23:33:17,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/data/b3db94add/103370c8d3d44402a266d4ff08de8644 [2020-11-29 23:33:17,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:33:17,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:33:17,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:33:17,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:33:17,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:33:17,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eaa9820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17, skipping insertion in model container [2020-11-29 23:33:17,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:33:17,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:33:17,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:33:17,910 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:33:17,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:33:17,944 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:33:17,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17 WrapperNode [2020-11-29 23:33:17,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:33:17,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:33:17,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:33:17,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:33:17,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:33:17,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:33:17,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:33:17,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:33:17,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:17,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:18,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:18,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... [2020-11-29 23:33:18,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:33:18,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:33:18,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:33:18,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:33:18,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/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 23:33:18,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:33:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:33:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:33:18,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:33:18,364 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:33:18,365 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-29 23:33:18,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:33:18 BoogieIcfgContainer [2020-11-29 23:33:18,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:33:18,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:33:18,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:33:18,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:33:18,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:33:17" (1/3) ... [2020-11-29 23:33:18,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce18bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:33:18, skipping insertion in model container [2020-11-29 23:33:18,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:33:17" (2/3) ... [2020-11-29 23:33:18,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce18bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:33:18, skipping insertion in model container [2020-11-29 23:33:18,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:33:18" (3/3) ... [2020-11-29 23:33:18,396 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll.c [2020-11-29 23:33:18,408 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:33:18,413 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 23:33:18,426 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 23:33:18,466 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:33:18,466 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:33:18,466 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:33:18,467 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:33:18,467 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:33:18,467 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:33:18,467 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:33:18,467 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:33:18,482 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-11-29 23:33:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:33:18,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:33:18,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:33:18,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:33:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:33:18,509 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-11-29 23:33:18,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:33:18,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963423675] [2020-11-29 23:33:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:33:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:33:18,706 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 23:33:18,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963423675] [2020-11-29 23:33:18,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:33:18,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:33:18,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281235273] [2020-11-29 23:33:18,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:33:18,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:33:18,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:33:18,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:33:18,735 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-11-29 23:33:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:33:18,759 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2020-11-29 23:33:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:33:18,761 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-29 23:33:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:33:18,775 INFO L225 Difference]: With dead ends: 35 [2020-11-29 23:33:18,775 INFO L226 Difference]: Without dead ends: 15 [2020-11-29 23:33:18,780 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 23:33:18,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-29 23:33:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-29 23:33:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-29 23:33:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-29 23:33:18,825 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2020-11-29 23:33:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:33:18,826 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-11-29 23:33:18,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:33:18,827 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-29 23:33:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 23:33:18,828 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:33:18,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:33:18,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:33:18,830 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:33:18,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:33:18,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-11-29 23:33:18,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:33:18,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647319424] [2020-11-29 23:33:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:33:18,902 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 23:33:18,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226008742] [2020-11-29 23:33:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/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 23:33:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:33:19,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:33:19,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:33:19,123 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 23:33:19,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647319424] [2020-11-29 23:33:19,124 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 23:33:19,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226008742] [2020-11-29 23:33:19,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:33:19,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:33:19,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105288056] [2020-11-29 23:33:19,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:33:19,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:33:19,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:33:19,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:33:19,128 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2020-11-29 23:33:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:33:19,233 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-11-29 23:33:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:33:19,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-29 23:33:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:33:19,235 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:33:19,235 INFO L226 Difference]: Without dead ends: 19 [2020-11-29 23:33:19,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:33:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-29 23:33:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-11-29 23:33:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 23:33:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-11-29 23:33:19,242 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 9 [2020-11-29 23:33:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:33:19,242 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-11-29 23:33:19,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:33:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-11-29 23:33:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:33:19,246 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:33:19,246 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:33:19,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-29 23:33:19,467 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:33:19,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:33:19,468 INFO L82 PathProgramCache]: Analyzing trace with hash 637918818, now seen corresponding path program 1 times [2020-11-29 23:33:19,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:33:19,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165517920] [2020-11-29 23:33:19,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:33:19,486 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 23:33:19,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075578747] [2020-11-29 23:33:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/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 [2020-11-29 23:33:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:33:19,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 23:33:19,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:33:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:33:19,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165517920] [2020-11-29 23:33:19,699 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 23:33:19,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075578747] [2020-11-29 23:33:19,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:33:19,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-29 23:33:19,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357720251] [2020-11-29 23:33:19,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:33:19,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:33:19,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:33:19,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:33:19,702 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-11-29 23:33:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:33:23,924 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-11-29 23:33:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:33:23,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 23:33:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:33:23,940 INFO L225 Difference]: With dead ends: 25 [2020-11-29 23:33:23,940 INFO L226 Difference]: Without dead ends: 23 [2020-11-29 23:33:23,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:33:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-29 23:33:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-11-29 23:33:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 23:33:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-29 23:33:23,946 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 12 [2020-11-29 23:33:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:33:23,947 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-29 23:33:23,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:33:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-29 23:33:23,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:33:23,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:33:23,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:33:24,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:33:24,148 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:33:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:33:24,149 INFO L82 PathProgramCache]: Analyzing trace with hash -984923734, now seen corresponding path program 1 times [2020-11-29 23:33:24,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:33:24,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105879812] [2020-11-29 23:33:24,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:33:24,185 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 23:33:24,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128896878] [2020-11-29 23:33:24,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:33:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:33:24,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 23:33:24,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:33:24,298 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:33:24,298 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:33:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:33:24,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105879812] [2020-11-29 23:33:24,391 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 23:33:24,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128896878] [2020-11-29 23:33:24,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:33:24,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:33:24,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958419869] [2020-11-29 23:33:24,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:33:24,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:33:24,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:33:24,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:33:24,394 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 5 states. [2020-11-29 23:33:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:33:28,665 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-29 23:33:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:33:28,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-29 23:33:28,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:33:28,667 INFO L225 Difference]: With dead ends: 20 [2020-11-29 23:33:28,667 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 23:33:28,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:33:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 23:33:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 23:33:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 23:33:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-29 23:33:28,673 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 15 [2020-11-29 23:33:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:33:28,674 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-29 23:33:28,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:33:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-29 23:33:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:33:28,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:33:28,675 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:33:28,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:33:28,887 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:33:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:33:28,888 INFO L82 PathProgramCache]: Analyzing trace with hash -984884012, now seen corresponding path program 2 times [2020-11-29 23:33:28,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:33:28,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220634717] [2020-11-29 23:33:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:33:28,908 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 23:33:28,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [180046964] [2020-11-29 23:33:28,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:33:28,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:33:28,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:33:28,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 30 conjunts are in the unsatisfiable core [2020-11-29 23:33:28,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:33:28,990 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:33:28,991 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:33:58,034 WARN L193 SmtUtils]: Spent 24.69 s on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 23:33:58,038 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:33:58,039 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:06,387 WARN L193 SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 23:34:08,791 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:08,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:10,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220634717] [2020-11-29 23:34:10,898 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 23:34:10,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180046964] [2020-11-29 23:34:10,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:34:10,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-29 23:34:10,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280122455] [2020-11-29 23:34:10,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:34:10,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:10,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:34:10,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=60, Unknown=6, NotChecked=0, Total=90 [2020-11-29 23:34:10,901 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 10 states. [2020-11-29 23:34:34,492 WARN L193 SmtUtils]: Spent 8.49 s on a formula simplification. DAG size of input: 26 DAG size of output: 19 [2020-11-29 23:34:37,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:37,957 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-11-29 23:34:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 23:34:37,963 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-29 23:34:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:34:37,963 INFO L225 Difference]: With dead ends: 23 [2020-11-29 23:34:37,964 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:34:37,965 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 55.0s TimeCoverageRelationStatistics Valid=59, Invalid=173, Unknown=8, NotChecked=0, Total=240 [2020-11-29 23:34:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:34:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-11-29 23:34:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 23:34:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-11-29 23:34:37,972 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2020-11-29 23:34:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:34:37,973 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-11-29 23:34:37,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:34:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-11-29 23:34:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:34:37,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:34:37,974 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:38,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:34:38,188 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:34:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:38,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1752108766, now seen corresponding path program 3 times [2020-11-29 23:34:38,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:38,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944823934] [2020-11-29 23:34:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:38,203 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-29 23:34:38,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611771252] [2020-11-29 23:34:38,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:34:38,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-29 23:34:38,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:34:38,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 23:34:38,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:39,320 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2020-11-29 23:34:41,088 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 23:34:41,091 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-29 23:34:41,091 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:42,301 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 23:34:49,828 WARN L193 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2020-11-29 23:34:49,836 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:50,201 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:34:50,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944823934] [2020-11-29 23:34:50,407 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-29 23:34:50,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611771252] [2020-11-29 23:34:50,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:34:50,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-29 23:34:50,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440759543] [2020-11-29 23:34:50,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 23:34:50,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:50,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:34:50,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:34:50,409 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2020-11-29 23:34:57,951 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 24 DAG size of output: 19 [2020-11-29 23:35:22,440 WARN L193 SmtUtils]: Spent 14.55 s on a formula simplification that was a NOOP. DAG size: 34 [2020-11-29 23:35:26,536 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_main_~z~0 0))) (let ((.cse1 (not .cse2))) (and (let ((.cse0 (= (+ (* c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~x~0) 1) (+ c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~x~0)))) (or (and (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) (not .cse0)) (and (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse0))) (or (= c_ULTIMATE.start_main_~y~0 0) (and (= (mod c_ULTIMATE.start_main_~y~0 c_ULTIMATE.start_main_~z~0) 0) .cse1)) (or (and (= c_ULTIMATE.start_main_~x~0 1) .cse2) (let ((.cse3 (+ c_ULTIMATE.start_main_~x~0 (- 1)))) (let ((.cse4 (div .cse3 c_ULTIMATE.start_main_~z~0))) (and (= (mod .cse3 c_ULTIMATE.start_main_~z~0) 0) (= (mod (+ (* c_ULTIMATE.start_main_~z~0 .cse4) (* .cse4 (- 1)) 1) c_ULTIMATE.start_main_~z~0) 0) .cse1 (= (+ (* .cse4 c_ULTIMATE.start_main_~z~0) c_ULTIMATE.start_main_~y~0) (+ (* .cse4 c_ULTIMATE.start_main_~z~0 c_ULTIMATE.start_main_~z~0) c_ULTIMATE.start_main_~z~0))))))))) is different from false [2020-11-29 23:35:40,944 WARN L193 SmtUtils]: Spent 10.27 s on a formula simplification that was a NOOP. DAG size: 32 [2020-11-29 23:35:42,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:42,961 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-11-29 23:35:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:35:43,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-29 23:35:43,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:43,026 INFO L225 Difference]: With dead ends: 19 [2020-11-29 23:35:43,026 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:35:43,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=32, Invalid=59, Unknown=3, NotChecked=16, Total=110 [2020-11-29 23:35:43,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:35:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:35:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:35:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:35:43,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-29 23:35:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:43,028 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:43,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 23:35:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:43,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:35:43,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-11-29 23:35:43,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:35:45,800 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2020-11-29 23:36:13,662 WARN L193 SmtUtils]: Spent 27.86 s on a formula simplification. DAG size of input: 57 DAG size of output: 36 [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2020-11-29 23:36:13,672 INFO L277 CegarLoopResult]: At program point L49(lines 22 50) the Hoare annotation is: true [2020-11-29 23:36:13,672 INFO L274 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L270 CegarLoopResult]: At program point L16-1(lines 37 38) the Hoare annotation is: (and (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~z~0)) [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L277 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L12(lines 12 14) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:36:13,673 INFO L274 CegarLoopResult]: For program point L17(lines 17 18) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 18) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-29 23:36:13,674 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 44) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start_main_~z~0))) (or (and (= ULTIMATE.start_main_~x~0 1) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) 1) (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) (<= 1 ULTIMATE.start_main_~c~0) .cse0) (let ((.cse2 (+ ULTIMATE.start_main_~x~0 (- 1)))) (let ((.cse1 (div .cse2 ULTIMATE.start_main_~z~0))) (and (= (mod ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~z~0) 0) (= (+ (* .cse1 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) (+ ULTIMATE.start_main_~z~0 (* .cse1 ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~z~0))) (= (mod .cse2 ULTIMATE.start_main_~z~0) 0) (= (mod (+ (* ULTIMATE.start_main_~z~0 .cse1) (* .cse1 (- 1)) 1) ULTIMATE.start_main_~z~0) 0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0))))) [2020-11-29 23:36:13,674 INFO L274 CegarLoopResult]: For program point L34-3(lines 34 44) no Hoare annotation was computed. [2020-11-29 23:36:13,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:36:13 BoogieIcfgContainer [2020-11-29 23:36:13,699 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:36:13,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:36:13,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:36:13,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:36:13,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:33:18" (3/4) ... [2020-11-29 23:36:13,705 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:36:13,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 23:36:13,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:36:13,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:36:13,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:36:13,771 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5000ffe4-e77c-473c-b8d4-2c01555587cb/bin/uautomizer/witness.graphml [2020-11-29 23:36:13,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:36:13,773 INFO L168 Benchmark]: Toolchain (without parser) took 176141.92 ms. Allocated memory was 73.4 MB in the beginning and 119.5 MB in the end (delta: 46.1 MB). Free memory was 42.0 MB in the beginning and 84.7 MB in the end (delta: -42.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,774 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 54.7 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:13,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.75 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 41.9 MB in the beginning and 68.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,777 INFO L168 Benchmark]: Boogie Preprocessor took 24.82 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:36:13,778 INFO L168 Benchmark]: RCFGBuilder took 358.94 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 53.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,788 INFO L168 Benchmark]: TraceAbstraction took 175315.71 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.0 MB in the beginning and 87.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,788 INFO L168 Benchmark]: Witness Printer took 71.71 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 84.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:36:13,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 54.7 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.75 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 41.9 MB in the beginning and 68.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 90.2 MB. Free memory was 68.2 MB in the beginning and 66.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.82 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 358.94 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 53.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 175315.71 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 53.0 MB in the beginning and 87.9 MB in the end (delta: -34.8 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 71.71 ms. Allocated memory is still 119.5 MB. Free memory was 87.9 MB in the beginning and 84.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * 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: 37]: Loop Invariant Derived loop invariant: ((y % z == 0 && z * x + 1 == x + y) && 1 == cond) && 1 <= z - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((x == 1 && z * x + 1 == x + y) && 1 <= c) && 1 <= z) || (((((y % z == 0 && (x + -1) / z * z + y == z + (x + -1) / z * z * z) && (x + -1) % z == 0) && (z * ((x + -1) / z) + (x + -1) / z * -1 + 1) % z == 0) && 1 <= cond) && 1 <= z) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 144.7s, OverallIterations: 6, TraceHistogramMax: 4, AutomataDifference: 88.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 30.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 40 SDslu, 108 SDs, 0 SdLazy, 124 SolverSat, 29 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 34.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 106.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=3, 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, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 102 HoareAnnotationTreeSize, 4 FomulaSimplifications, 130 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 240 FormulaSimplificationTreeSizeReductionInter, 30.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 54.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 6557 SizeOfPredicates, 34 NumberOfNonLiveVariables, 390 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 16/27 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...