./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 2d0dd826da977145676f85980fecf0ec40390b47 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:24:01,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:24:01,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:24:02,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:24:02,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:24:02,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:24:02,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:24:02,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:24:02,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:24:02,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:24:02,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:24:02,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:24:02,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:24:02,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:24:02,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:24:02,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:24:02,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:24:02,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:24:02,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:24:02,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:24:02,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:24:02,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:24:02,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:24:02,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:24:02,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:24:02,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:24:02,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:24:02,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:24:02,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:24:02,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:24:02,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:24:02,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:24:02,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:24:02,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:24:02,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:24:02,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:24:02,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:24:02,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:24:02,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:24:02,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:24:02,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:24:02,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:24:02,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:24:02,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:24:02,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:24:02,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:24:02,179 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:24:02,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:24:02,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:24:02,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:24:02,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:24:02,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:24:02,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:24:02,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:24:02,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:24:02,189 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:24:02,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:24:02,190 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:24:02,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:24:02,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:24:02,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:24:02,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:24:02,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:24:02,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:24:02,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:24:02,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:24:02,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:24:02,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:24:02,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:24:02,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:24:02,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:24:02,200 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_056f02ab-6835-4b36-a78c-f6dbf0963702/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0dd826da977145676f85980fecf0ec40390b47 [2020-12-01 15:24:02,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:24:02,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:24:02,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:24:02,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:24:02,559 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:24:02,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/../../sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2020-12-01 15:24:02,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/data/26d959b83/f5cd0e97085b4b7abd9d1bec2edc4e7a/FLAG8981518cb [2020-12-01 15:24:03,389 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:24:03,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/sv-benchmarks/c/nla-digbench-scaling/divbin2_valuebound1.i [2020-12-01 15:24:03,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/data/26d959b83/f5cd0e97085b4b7abd9d1bec2edc4e7a/FLAG8981518cb [2020-12-01 15:24:03,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/data/26d959b83/f5cd0e97085b4b7abd9d1bec2edc4e7a [2020-12-01 15:24:03,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:24:03,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:24:03,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:03,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:24:03,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:24:03,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:03" (1/1) ... [2020-12-01 15:24:03,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754689c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:03, skipping insertion in model container [2020-12-01 15:24:03,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:03" (1/1) ... [2020-12-01 15:24:03,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:24:03,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:24:03,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:04,005 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:24:04,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:04,047 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:24:04,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04 WrapperNode [2020-12-01 15:24:04,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:04,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:04,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:24:04,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:24:04,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:04,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:24:04,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:24:04,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:24:04,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... [2020-12-01 15:24:04,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:24:04,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:24:04,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:24:04,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:24:04,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:24:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:24:04,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:24:04,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:24:04,520 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:24:04,521 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 15:24:04,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:04 BoogieIcfgContainer [2020-12-01 15:24:04,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:24:04,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:24:04,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:24:04,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:24:04,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:24:03" (1/3) ... [2020-12-01 15:24:04,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5c03cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:24:04, skipping insertion in model container [2020-12-01 15:24:04,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:04" (2/3) ... [2020-12-01 15:24:04,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5c03cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:24:04, skipping insertion in model container [2020-12-01 15:24:04,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:04" (3/3) ... [2020-12-01 15:24:04,557 INFO L111 eAbstractionObserver]: Analyzing ICFG divbin2_valuebound1.i [2020-12-01 15:24:04,574 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:24:04,578 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-01 15:24:04,593 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-01 15:24:04,641 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:24:04,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:24:04,642 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:24:04,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:24:04,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:24:04,642 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:24:04,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:24:04,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:24:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-12-01 15:24:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:24:04,667 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:04,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:04,669 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:04,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1104570084, now seen corresponding path program 1 times [2020-12-01 15:24:04,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:04,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167416148] [2020-12-01 15:24:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:04,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:04,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167416148] [2020-12-01 15:24:04,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:04,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:24:04,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380210116] [2020-12-01 15:24:04,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:24:04,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:04,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:24:04,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:24:04,932 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2020-12-01 15:24:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:04,971 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2020-12-01 15:24:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:24:04,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:24:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:04,984 INFO L225 Difference]: With dead ends: 45 [2020-12-01 15:24:04,985 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:24:04,989 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 [2020-12-01 15:24:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:24:05,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 15:24:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:24:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2020-12-01 15:24:05,034 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2020-12-01 15:24:05,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:05,035 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2020-12-01 15:24:05,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:24:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2020-12-01 15:24:05,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:24:05,037 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:05,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:05,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:24:05,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:05,040 INFO L82 PathProgramCache]: Analyzing trace with hash -2096849699, now seen corresponding path program 1 times [2020-12-01 15:24:05,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:05,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154703503] [2020-12-01 15:24:05,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:05,073 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:24:05,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98204577] [2020-12-01 15:24:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:05,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:24:05,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:05,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154703503] [2020-12-01 15:24:05,524 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:24:05,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98204577] [2020-12-01 15:24:05,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:05,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:24:05,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030505501] [2020-12-01 15:24:05,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:24:05,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:05,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:24:05,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:24:05,533 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 7 states. [2020-12-01 15:24:05,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:05,889 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2020-12-01 15:24:05,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:24:05,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-01 15:24:05,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:05,891 INFO L225 Difference]: With dead ends: 37 [2020-12-01 15:24:05,892 INFO L226 Difference]: Without dead ends: 27 [2020-12-01 15:24:05,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:24:05,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-01 15:24:05,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-12-01 15:24:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-01 15:24:05,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-12-01 15:24:05,900 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2020-12-01 15:24:05,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:05,900 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-12-01 15:24:05,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:24:05,901 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-12-01 15:24:05,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:24:05,902 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:05,902 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:06,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:24:06,131 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:06,132 INFO L82 PathProgramCache]: Analyzing trace with hash 974667832, now seen corresponding path program 1 times [2020-12-01 15:24:06,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:06,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732772456] [2020-12-01 15:24:06,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:06,169 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:24:06,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768470386] [2020-12-01 15:24:06,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:06,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:24:06,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:06,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732772456] [2020-12-01 15:24:06,392 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:24:06,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768470386] [2020-12-01 15:24:06,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:24:06,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-12-01 15:24:06,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63573015] [2020-12-01 15:24:06,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:24:06,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:06,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:24:06,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:24:06,396 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 7 states. [2020-12-01 15:24:06,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:06,798 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-12-01 15:24:06,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:24:06,802 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 15:24:06,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:06,803 INFO L225 Difference]: With dead ends: 42 [2020-12-01 15:24:06,803 INFO L226 Difference]: Without dead ends: 32 [2020-12-01 15:24:06,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:24:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-01 15:24:06,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2020-12-01 15:24:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 15:24:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2020-12-01 15:24:06,812 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 13 [2020-12-01 15:24:06,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:06,813 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2020-12-01 15:24:06,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:24:06,813 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2020-12-01 15:24:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:24:06,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:06,814 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:07,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:07,035 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:07,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:07,035 INFO L82 PathProgramCache]: Analyzing trace with hash 2120747147, now seen corresponding path program 1 times [2020-12-01 15:24:07,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:07,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843390926] [2020-12-01 15:24:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:07,063 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:24:07,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261596174] [2020-12-01 15:24:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:07,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:24:07,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:07,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843390926] [2020-12-01 15:24:07,220 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:24:07,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261596174] [2020-12-01 15:24:07,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:07,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:24:07,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378932466] [2020-12-01 15:24:07,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:24:07,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:07,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:24:07,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:07,223 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2020-12-01 15:24:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:07,266 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2020-12-01 15:24:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:24:07,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-12-01 15:24:07,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:07,272 INFO L225 Difference]: With dead ends: 43 [2020-12-01 15:24:07,272 INFO L226 Difference]: Without dead ends: 26 [2020-12-01 15:24:07,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-01 15:24:07,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-01 15:24:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-01 15:24:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-12-01 15:24:07,294 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 15 [2020-12-01 15:24:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:07,295 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-12-01 15:24:07,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:24:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-12-01 15:24:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:24:07,296 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:07,296 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:07,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:07,515 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:07,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1911850598, now seen corresponding path program 1 times [2020-12-01 15:24:07,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:07,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812522425] [2020-12-01 15:24:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:07,534 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:24:07,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392909155] [2020-12-01 15:24:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:07,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-01 15:24:07,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:07,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812522425] [2020-12-01 15:24:07,909 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:24:07,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392909155] [2020-12-01 15:24:07,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:24:07,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-12-01 15:24:07,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541803945] [2020-12-01 15:24:07,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:24:07,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:07,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:24:07,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:24:07,912 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 9 states. [2020-12-01 15:24:08,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:08,484 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2020-12-01 15:24:08,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:24:08,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-12-01 15:24:08,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:08,486 INFO L225 Difference]: With dead ends: 53 [2020-12-01 15:24:08,486 INFO L226 Difference]: Without dead ends: 31 [2020-12-01 15:24:08,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:24:08,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-01 15:24:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2020-12-01 15:24:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 15:24:08,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-12-01 15:24:08,493 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2020-12-01 15:24:08,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:08,494 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-12-01 15:24:08,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:24:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-12-01 15:24:08,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 15:24:08,495 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:24:08,495 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:08,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:08,703 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:24:08,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:08,703 INFO L82 PathProgramCache]: Analyzing trace with hash 952501652, now seen corresponding path program 2 times [2020-12-01 15:24:08,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:08,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449594812] [2020-12-01 15:24:08,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:08,724 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-01 15:24:08,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696794183] [2020-12-01 15:24:08,724 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/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 [2020-12-01 15:24:08,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:24:08,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:24:08,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:24:08,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:09,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449594812] [2020-12-01 15:24:09,087 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-01 15:24:09,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696794183] [2020-12-01 15:24:09,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:24:09,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-12-01 15:24:09,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675063087] [2020-12-01 15:24:09,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:24:09,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:24:09,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:24:09,098 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-12-01 15:24:09,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:09,145 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-12-01 15:24:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:24:09,147 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-01 15:24:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:24:09,147 INFO L225 Difference]: With dead ends: 29 [2020-12-01 15:24:09,147 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:24:09,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:24:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:24:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:24:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:24:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:24:09,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-12-01 15:24:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:24:09,151 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:24:09,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:24:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:24:09,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:24:09,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-01 15:24:09,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:24:09,560 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-01 15:24:09,812 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-12-01 15:24:09,816 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,816 INFO L262 CegarLoopResult]: For program point L19(lines 19 22) no Hoare annotation was computed. [2020-12-01 15:24:09,816 INFO L258 CegarLoopResult]: At program point L19-1(line 40) the Hoare annotation is: (let ((.cse9 (mod ULTIMATE.start_main_~r~0 4294967296)) (.cse5 (mod ULTIMATE.start_main_~b~0 4294967296))) (let ((.cse0 (= ULTIMATE.start_main_~B~0 1)) (.cse2 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0)) (.cse6 (< .cse9 .cse5)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse7 (= ULTIMATE.start_main_~q~0 0)) (.cse4 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse8 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (let ((.cse3 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~b~0))) (and (= ULTIMATE.start_main_~q~0 1) .cse0 (<= (mod ULTIMATE.start_main_~A~0 4294967296) 1) .cse1 .cse2 (= ULTIMATE.start_main_~A~0 .cse3) .cse4 (<= .cse5 (mod .cse3 4294967296)))) (and .cse0 .cse6 .cse1 .cse2 .cse7 .cse4 .cse8) (and (= ULTIMATE.start_main_~b~0 2) .cse6 (<= (mod ULTIMATE.start_main_~B~0 4294967296) .cse9) .cse1 .cse7 .cse4 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~b~0) .cse8)))) [2020-12-01 15:24:09,816 INFO L262 CegarLoopResult]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L265 CegarLoopResult]: At program point L19-3(lines 18 24) the Hoare annotation is: true [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-12-01 15:24:09,817 INFO L262 CegarLoopResult]: For program point L20-1(lines 20 21) no Hoare annotation was computed. [2020-12-01 15:24:09,818 INFO L265 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: true [2020-12-01 15:24:09,818 INFO L262 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-12-01 15:24:09,818 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,818 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,818 INFO L262 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,819 INFO L262 CegarLoopResult]: For program point L12-6(line 12) no Hoare annotation was computed. [2020-12-01 15:24:09,820 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:24:09,820 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 47) no Hoare annotation was computed. [2020-12-01 15:24:09,820 INFO L258 CegarLoopResult]: At program point L34-2(lines 34 37) the Hoare annotation is: (let ((.cse0 (<= (mod ULTIMATE.start_main_~A~0 4294967296) 1)) (.cse1 (= ULTIMATE.start_main_~q~0 0)) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse3 (= ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))) (or (and (= ULTIMATE.start_main_~B~0 1) .cse0 (= ULTIMATE.start_main_~B~0 ULTIMATE.start_main_~b~0) .cse1 .cse2 .cse3) (and .cse0 (= ULTIMATE.start_main_~b~0 2) (<= (mod ULTIMATE.start_main_~B~0 4294967296) (mod ULTIMATE.start_main_~r~0 4294967296)) .cse1 .cse2 (= (* ULTIMATE.start_main_~B~0 2) ULTIMATE.start_main_~b~0) .cse3))) [2020-12-01 15:24:09,821 INFO L262 CegarLoopResult]: For program point L43(lines 43 46) no Hoare annotation was computed. [2020-12-01 15:24:09,821 INFO L262 CegarLoopResult]: For program point L43-2(lines 25 50) no Hoare annotation was computed. [2020-12-01 15:24:09,821 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-01 15:24:09,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:24:09 BoogieIcfgContainer [2020-12-01 15:24:09,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:24:09,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:24:09,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:24:09,863 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:24:09,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:04" (3/4) ... [2020-12-01 15:24:09,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:24:09,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 15:24:09,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:24:09,884 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:24:09,885 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:24:09,960 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_056f02ab-6835-4b36-a78c-f6dbf0963702/bin/uautomizer/witness.graphml [2020-12-01 15:24:09,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:24:09,962 INFO L168 Benchmark]: Toolchain (without parser) took 6245.31 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 74.3 MB in the beginning and 77.2 MB in the end (delta: -2.9 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,963 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:24:09,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.02 ms. Allocated memory is still 100.7 MB. Free memory was 74.1 MB in the beginning and 78.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,965 INFO L168 Benchmark]: Boogie Preprocessor took 39.18 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:24:09,965 INFO L168 Benchmark]: RCFGBuilder took 390.14 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 62.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,966 INFO L168 Benchmark]: TraceAbstraction took 5322.92 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 61.8 MB in the beginning and 80.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,966 INFO L168 Benchmark]: Witness Printer took 97.61 ms. Allocated memory is still 146.8 MB. Free memory was 80.3 MB in the beginning and 77.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:24:09,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 100.7 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.02 ms. Allocated memory is still 100.7 MB. Free memory was 74.1 MB in the beginning and 78.0 MB in the end (delta: -3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.0 MB in the beginning and 76.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.18 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 390.14 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 62.4 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5322.92 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 61.8 MB in the beginning and 80.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. * Witness Printer took 97.61 ms. Allocated memory is still 146.8 MB. Free memory was 80.3 MB in the beginning and 77.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((B == 1 && A % 4294967296 <= 1) && B == b) && q == 0) && cond == 1) && A == r) || ((((((A % 4294967296 <= 1 && b == 2) && B % 4294967296 <= r % 4294967296) && q == 0) && cond == 1) && B * 2 == b) && A == r) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((q == 1 && B == 1) && A % 4294967296 <= 1) && 1 == cond) && B == b) && A == r + b) && cond == 1) && b % 4294967296 <= (r + b) % 4294967296) || ((((((B == 1 && r % 4294967296 < b % 4294967296) && 1 == cond) && B == b) && q == 0) && cond == 1) && A == r)) || (((((((b == 2 && r % 4294967296 < b % 4294967296) && B % 4294967296 <= r % 4294967296) && 1 == cond) && q == 0) && cond == 1) && B * 2 == b) && A == r) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 189 SDslu, 137 SDs, 0 SdLazy, 187 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 151 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 9613 SizeOfPredicates, 24 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 7/18 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...