./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 00d015cea7b11aabc3ddec4842024b6b03cb0eb9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:01:22,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:01:22,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:01:22,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:01:22,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:01:22,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:01:22,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:01:22,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:01:22,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:01:22,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:01:22,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:01:22,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:01:22,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:01:22,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:01:22,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:01:22,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:01:22,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:01:22,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:01:22,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:01:22,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:01:22,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:01:22,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:01:22,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:01:22,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:01:22,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:01:22,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:01:22,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:01:22,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:01:22,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:01:22,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:01:22,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:01:22,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:01:22,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:01:22,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:01:22,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:01:22,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:01:22,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:01:22,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:01:22,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:01:22,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:01:22,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:01:22,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-20 10:01:22,286 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:01:22,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:01:22,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:01:22,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:01:22,298 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:01:22,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:01:22,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:01:22,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:01:22,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:01:22,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:01:22,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:01:22,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:01:22,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:01:22,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:01:22,301 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 10:01:22,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:01:22,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:01:22,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:01:22,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:01:22,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:01:22,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:01:22,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:01:22,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:01:22,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:01:22,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:01:22,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:01:22,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:01:22,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:01:22,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:01:22,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:01:22,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/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 ! overflow) ) 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 -> 00d015cea7b11aabc3ddec4842024b6b03cb0eb9 [2019-11-20 10:01:22,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:01:22,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:01:22,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:01:22,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:01:22,529 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:01:22,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2019-11-20 10:01:22,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/data/9e3ce2acf/cf62fba949d7450db58ef804929eaef6/FLAG89980950b [2019-11-20 10:01:23,055 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:01:23,072 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2019-11-20 10:01:23,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/data/9e3ce2acf/cf62fba949d7450db58ef804929eaef6/FLAG89980950b [2019-11-20 10:01:23,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/data/9e3ce2acf/cf62fba949d7450db58ef804929eaef6 [2019-11-20 10:01:23,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:01:23,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:01:23,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:01:23,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:01:23,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:01:23,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:23" (1/1) ... [2019-11-20 10:01:23,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38bcc83a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:23, skipping insertion in model container [2019-11-20 10:01:23,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:23" (1/1) ... [2019-11-20 10:01:23,575 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:01:23,619 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:01:24,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:01:24,036 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:01:24,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:01:24,162 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:01:24,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24 WrapperNode [2019-11-20 10:01:24,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:01:24,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:01:24,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:01:24,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:01:24,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:01:24,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:01:24,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:01:24,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:01:24,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... [2019-11-20 10:01:24,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:01:24,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:01:24,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:01:24,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:01:24,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:01:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:01:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:01:24,503 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 10:01:25,425 INFO L689 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-11-20 10:01:25,426 INFO L689 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-11-20 10:01:25,427 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:01:25,428 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 10:01:25,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:25 BoogieIcfgContainer [2019-11-20 10:01:25,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:01:25,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:01:25,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:01:25,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:01:25,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:01:23" (1/3) ... [2019-11-20 10:01:25,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65be3a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:25, skipping insertion in model container [2019-11-20 10:01:25,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:24" (2/3) ... [2019-11-20 10:01:25,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65be3a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:25, skipping insertion in model container [2019-11-20 10:01:25,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:25" (3/3) ... [2019-11-20 10:01:25,442 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_alt.BV.c.cil.c [2019-11-20 10:01:25,454 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:01:25,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-20 10:01:25,474 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-20 10:01:25,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:01:25,499 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:01:25,499 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:01:25,499 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:01:25,499 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:01:25,499 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:01:25,499 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:01:25,499 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:01:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2019-11-20 10:01:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 10:01:25,524 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:25,525 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:25,525 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:25,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:25,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1272360941, now seen corresponding path program 1 times [2019-11-20 10:01:25,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:25,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067014392] [2019-11-20 10:01:25,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:25,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067014392] [2019-11-20 10:01:25,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:25,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:25,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409711664] [2019-11-20 10:01:25,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:25,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:25,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:25,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:25,731 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 3 states. [2019-11-20 10:01:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:25,963 INFO L93 Difference]: Finished difference Result 343 states and 551 transitions. [2019-11-20 10:01:25,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:25,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 10:01:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:25,980 INFO L225 Difference]: With dead ends: 343 [2019-11-20 10:01:25,981 INFO L226 Difference]: Without dead ends: 168 [2019-11-20 10:01:25,985 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-20 10:01:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-20 10:01:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-20 10:01:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 243 transitions. [2019-11-20 10:01:26,044 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 243 transitions. Word has length 17 [2019-11-20 10:01:26,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:26,044 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 243 transitions. [2019-11-20 10:01:26,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 243 transitions. [2019-11-20 10:01:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 10:01:26,046 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:26,046 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:26,047 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1039871977, now seen corresponding path program 1 times [2019-11-20 10:01:26,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:26,048 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880836873] [2019-11-20 10:01:26,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:26,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:26,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880836873] [2019-11-20 10:01:26,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:26,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:26,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757593279] [2019-11-20 10:01:26,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:26,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:26,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,099 INFO L87 Difference]: Start difference. First operand 168 states and 243 transitions. Second operand 3 states. [2019-11-20 10:01:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:26,290 INFO L93 Difference]: Finished difference Result 339 states and 488 transitions. [2019-11-20 10:01:26,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:26,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-20 10:01:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:26,293 INFO L225 Difference]: With dead ends: 339 [2019-11-20 10:01:26,293 INFO L226 Difference]: Without dead ends: 178 [2019-11-20 10:01:26,296 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-11-20 10:01:26,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 169. [2019-11-20 10:01:26,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-20 10:01:26,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 244 transitions. [2019-11-20 10:01:26,315 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 244 transitions. Word has length 18 [2019-11-20 10:01:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:26,315 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 244 transitions. [2019-11-20 10:01:26,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:26,315 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 244 transitions. [2019-11-20 10:01:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 10:01:26,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:26,317 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:26,317 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:26,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1005531851, now seen corresponding path program 1 times [2019-11-20 10:01:26,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:26,318 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557093122] [2019-11-20 10:01:26,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:26,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:26,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557093122] [2019-11-20 10:01:26,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:26,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:26,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965208117] [2019-11-20 10:01:26,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:26,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:26,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:26,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,366 INFO L87 Difference]: Start difference. First operand 169 states and 244 transitions. Second operand 3 states. [2019-11-20 10:01:26,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:26,555 INFO L93 Difference]: Finished difference Result 341 states and 490 transitions. [2019-11-20 10:01:26,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:26,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 10:01:26,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:26,557 INFO L225 Difference]: With dead ends: 341 [2019-11-20 10:01:26,558 INFO L226 Difference]: Without dead ends: 179 [2019-11-20 10:01:26,559 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-20 10:01:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 170. [2019-11-20 10:01:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-11-20 10:01:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 245 transitions. [2019-11-20 10:01:26,581 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 245 transitions. Word has length 19 [2019-11-20 10:01:26,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:26,581 INFO L462 AbstractCegarLoop]: Abstraction has 170 states and 245 transitions. [2019-11-20 10:01:26,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 245 transitions. [2019-11-20 10:01:26,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 10:01:26,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:26,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:26,583 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:26,588 INFO L82 PathProgramCache]: Analyzing trace with hash -994026446, now seen corresponding path program 1 times [2019-11-20 10:01:26,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:26,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654252494] [2019-11-20 10:01:26,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:26,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654252494] [2019-11-20 10:01:26,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:26,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:26,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099616908] [2019-11-20 10:01:26,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:26,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:26,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:26,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,694 INFO L87 Difference]: Start difference. First operand 170 states and 245 transitions. Second operand 3 states. [2019-11-20 10:01:26,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:26,877 INFO L93 Difference]: Finished difference Result 343 states and 492 transitions. [2019-11-20 10:01:26,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:26,881 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-20 10:01:26,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:26,883 INFO L225 Difference]: With dead ends: 343 [2019-11-20 10:01:26,883 INFO L226 Difference]: Without dead ends: 180 [2019-11-20 10:01:26,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-20 10:01:26,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 171. [2019-11-20 10:01:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-20 10:01:26,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 246 transitions. [2019-11-20 10:01:26,907 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 246 transitions. Word has length 20 [2019-11-20 10:01:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:26,908 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 246 transitions. [2019-11-20 10:01:26,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:26,908 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 246 transitions. [2019-11-20 10:01:26,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 10:01:26,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:26,910 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:26,910 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:26,911 INFO L82 PathProgramCache]: Analyzing trace with hash 461608262, now seen corresponding path program 1 times [2019-11-20 10:01:26,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:26,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276515255] [2019-11-20 10:01:26,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:26,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:26,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276515255] [2019-11-20 10:01:26,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:26,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:27,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262239082] [2019-11-20 10:01:27,000 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:27,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:27,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:27,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,001 INFO L87 Difference]: Start difference. First operand 171 states and 246 transitions. Second operand 3 states. [2019-11-20 10:01:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:27,194 INFO L93 Difference]: Finished difference Result 345 states and 494 transitions. [2019-11-20 10:01:27,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:27,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-20 10:01:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:27,197 INFO L225 Difference]: With dead ends: 345 [2019-11-20 10:01:27,197 INFO L226 Difference]: Without dead ends: 181 [2019-11-20 10:01:27,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-20 10:01:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2019-11-20 10:01:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-11-20 10:01:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 247 transitions. [2019-11-20 10:01:27,212 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 247 transitions. Word has length 21 [2019-11-20 10:01:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:27,212 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 247 transitions. [2019-11-20 10:01:27,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 247 transitions. [2019-11-20 10:01:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 10:01:27,214 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:27,215 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:27,215 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:27,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:27,215 INFO L82 PathProgramCache]: Analyzing trace with hash -853626144, now seen corresponding path program 1 times [2019-11-20 10:01:27,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:27,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360343003] [2019-11-20 10:01:27,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:27,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360343003] [2019-11-20 10:01:27,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:27,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:27,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53066415] [2019-11-20 10:01:27,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:27,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:27,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:27,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,297 INFO L87 Difference]: Start difference. First operand 172 states and 247 transitions. Second operand 3 states. [2019-11-20 10:01:27,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:27,531 INFO L93 Difference]: Finished difference Result 378 states and 548 transitions. [2019-11-20 10:01:27,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:27,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-20 10:01:27,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:27,534 INFO L225 Difference]: With dead ends: 378 [2019-11-20 10:01:27,534 INFO L226 Difference]: Without dead ends: 213 [2019-11-20 10:01:27,535 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2019-11-20 10:01:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 197. [2019-11-20 10:01:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-11-20 10:01:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 287 transitions. [2019-11-20 10:01:27,546 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 287 transitions. Word has length 32 [2019-11-20 10:01:27,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:27,547 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 287 transitions. [2019-11-20 10:01:27,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:27,547 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 287 transitions. [2019-11-20 10:01:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 10:01:27,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:27,550 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:27,550 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:27,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash 689633844, now seen corresponding path program 1 times [2019-11-20 10:01:27,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:27,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692086784] [2019-11-20 10:01:27,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:27,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692086784] [2019-11-20 10:01:27,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:27,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:27,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305109902] [2019-11-20 10:01:27,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:27,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:27,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:27,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,607 INFO L87 Difference]: Start difference. First operand 197 states and 287 transitions. Second operand 3 states. [2019-11-20 10:01:27,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:27,790 INFO L93 Difference]: Finished difference Result 415 states and 611 transitions. [2019-11-20 10:01:27,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:27,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-11-20 10:01:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:27,793 INFO L225 Difference]: With dead ends: 415 [2019-11-20 10:01:27,793 INFO L226 Difference]: Without dead ends: 225 [2019-11-20 10:01:27,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-11-20 10:01:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 209. [2019-11-20 10:01:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-11-20 10:01:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 310 transitions. [2019-11-20 10:01:27,804 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 310 transitions. Word has length 33 [2019-11-20 10:01:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:27,804 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 310 transitions. [2019-11-20 10:01:27,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 310 transitions. [2019-11-20 10:01:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 10:01:27,807 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:27,807 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:27,808 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:27,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:27,808 INFO L82 PathProgramCache]: Analyzing trace with hash 130507052, now seen corresponding path program 1 times [2019-11-20 10:01:27,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:27,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29794593] [2019-11-20 10:01:27,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:27,821 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:01:27,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269175243] [2019-11-20 10:01:27,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:27,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:01:27,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:01:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:27,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29794593] [2019-11-20 10:01:27,944 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:01:27,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269175243] [2019-11-20 10:01:27,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:27,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:27,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914485652] [2019-11-20 10:01:27,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:27,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:27,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:27,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:27,947 INFO L87 Difference]: Start difference. First operand 209 states and 310 transitions. Second operand 3 states. [2019-11-20 10:01:28,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:28,008 INFO L93 Difference]: Finished difference Result 613 states and 908 transitions. [2019-11-20 10:01:28,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:28,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-20 10:01:28,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:28,012 INFO L225 Difference]: With dead ends: 613 [2019-11-20 10:01:28,013 INFO L226 Difference]: Without dead ends: 411 [2019-11-20 10:01:28,013 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2019-11-20 10:01:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 394. [2019-11-20 10:01:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-11-20 10:01:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 600 transitions. [2019-11-20 10:01:28,051 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 600 transitions. Word has length 43 [2019-11-20 10:01:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:28,052 INFO L462 AbstractCegarLoop]: Abstraction has 394 states and 600 transitions. [2019-11-20 10:01:28,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 600 transitions. [2019-11-20 10:01:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-20 10:01:28,060 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:28,060 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:28,263 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:28,263 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:28,264 INFO L82 PathProgramCache]: Analyzing trace with hash 130508974, now seen corresponding path program 1 times [2019-11-20 10:01:28,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:28,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889288174] [2019-11-20 10:01:28,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:28,271 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:01:28,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2026030954] [2019-11-20 10:01:28,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:28,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 10:01:28,344 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:01:28,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:28,365 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889288174] [2019-11-20 10:01:28,366 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:01:28,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026030954] [2019-11-20 10:01:28,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:28,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:28,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923755841] [2019-11-20 10:01:28,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:28,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:28,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:28,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:28,368 INFO L87 Difference]: Start difference. First operand 394 states and 600 transitions. Second operand 3 states. [2019-11-20 10:01:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:28,613 INFO L93 Difference]: Finished difference Result 894 states and 1372 transitions. [2019-11-20 10:01:28,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:28,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-20 10:01:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:28,617 INFO L225 Difference]: With dead ends: 894 [2019-11-20 10:01:28,617 INFO L226 Difference]: Without dead ends: 507 [2019-11-20 10:01:28,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:28,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2019-11-20 10:01:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 470. [2019-11-20 10:01:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-11-20 10:01:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 690 transitions. [2019-11-20 10:01:28,639 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 690 transitions. Word has length 43 [2019-11-20 10:01:28,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:28,640 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 690 transitions. [2019-11-20 10:01:28,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:28,640 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 690 transitions. [2019-11-20 10:01:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 10:01:28,641 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:28,642 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:28,851 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:28,851 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:28,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:28,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1932390070, now seen corresponding path program 1 times [2019-11-20 10:01:28,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:28,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734488298] [2019-11-20 10:01:28,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:28,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734488298] [2019-11-20 10:01:28,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:28,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:28,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134954303] [2019-11-20 10:01:28,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:28,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:28,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:28,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:28,904 INFO L87 Difference]: Start difference. First operand 470 states and 690 transitions. Second operand 3 states. [2019-11-20 10:01:29,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:29,146 INFO L93 Difference]: Finished difference Result 585 states and 852 transitions. [2019-11-20 10:01:29,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:29,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-11-20 10:01:29,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:29,151 INFO L225 Difference]: With dead ends: 585 [2019-11-20 10:01:29,151 INFO L226 Difference]: Without dead ends: 566 [2019-11-20 10:01:29,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:29,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-11-20 10:01:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2019-11-20 10:01:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-11-20 10:01:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 830 transitions. [2019-11-20 10:01:29,179 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 830 transitions. Word has length 45 [2019-11-20 10:01:29,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:29,180 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 830 transitions. [2019-11-20 10:01:29,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 830 transitions. [2019-11-20 10:01:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-20 10:01:29,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:29,182 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:29,182 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:29,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:29,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1118595118, now seen corresponding path program 1 times [2019-11-20 10:01:29,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:29,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727092618] [2019-11-20 10:01:29,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:29,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727092618] [2019-11-20 10:01:29,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:29,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:01:29,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536213319] [2019-11-20 10:01:29,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:29,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:29,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:29,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:29,245 INFO L87 Difference]: Start difference. First operand 566 states and 830 transitions. Second operand 3 states. [2019-11-20 10:01:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:29,456 INFO L93 Difference]: Finished difference Result 1187 states and 1723 transitions. [2019-11-20 10:01:29,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:29,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-11-20 10:01:29,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:29,461 INFO L225 Difference]: With dead ends: 1187 [2019-11-20 10:01:29,462 INFO L226 Difference]: Without dead ends: 602 [2019-11-20 10:01:29,463 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-20 10:01:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 589. [2019-11-20 10:01:29,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-11-20 10:01:29,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 859 transitions. [2019-11-20 10:01:29,494 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 859 transitions. Word has length 46 [2019-11-20 10:01:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:29,494 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 859 transitions. [2019-11-20 10:01:29,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 859 transitions. [2019-11-20 10:01:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-20 10:01:29,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:29,498 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:29,498 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:29,498 INFO L82 PathProgramCache]: Analyzing trace with hash -849837809, now seen corresponding path program 1 times [2019-11-20 10:01:29,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:29,499 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527108036] [2019-11-20 10:01:29,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:29,514 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:01:29,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [484967446] [2019-11-20 10:01:29,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/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 [2019-11-20 10:01:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:29,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 10:01:29,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:01:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:29,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527108036] [2019-11-20 10:01:29,626 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:01:29,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484967446] [2019-11-20 10:01:29,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:29,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:01:29,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154429258] [2019-11-20 10:01:29,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:29,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:29,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:29,635 INFO L87 Difference]: Start difference. First operand 589 states and 859 transitions. Second operand 3 states. [2019-11-20 10:01:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:29,712 INFO L93 Difference]: Finished difference Result 1213 states and 1741 transitions. [2019-11-20 10:01:29,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:29,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-11-20 10:01:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:29,719 INFO L225 Difference]: With dead ends: 1213 [2019-11-20 10:01:29,719 INFO L226 Difference]: Without dead ends: 901 [2019-11-20 10:01:29,720 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:29,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2019-11-20 10:01:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 859. [2019-11-20 10:01:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 859 states. [2019-11-20 10:01:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1267 transitions. [2019-11-20 10:01:29,757 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1267 transitions. Word has length 59 [2019-11-20 10:01:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:29,759 INFO L462 AbstractCegarLoop]: Abstraction has 859 states and 1267 transitions. [2019-11-20 10:01:29,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1267 transitions. [2019-11-20 10:01:29,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-20 10:01:29,760 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:29,761 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:29,965 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:29,965 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:29,966 INFO L82 PathProgramCache]: Analyzing trace with hash -849835887, now seen corresponding path program 1 times [2019-11-20 10:01:29,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:29,966 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142286447] [2019-11-20 10:01:29,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:29,979 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:01:29,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099016148] [2019-11-20 10:01:29,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/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 [2019-11-20 10:01:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:01:30,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:01:30,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:01:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:01:30,060 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142286447] [2019-11-20 10:01:30,060 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-20 10:01:30,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099016148] [2019-11-20 10:01:30,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:01:30,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:01:30,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397214484] [2019-11-20 10:01:30,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:01:30,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:01:30,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:01:30,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:30,066 INFO L87 Difference]: Start difference. First operand 859 states and 1267 transitions. Second operand 3 states. [2019-11-20 10:01:30,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:01:30,243 INFO L93 Difference]: Finished difference Result 1786 states and 2639 transitions. [2019-11-20 10:01:30,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:01:30,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-11-20 10:01:30,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:01:30,251 INFO L225 Difference]: With dead ends: 1786 [2019-11-20 10:01:30,252 INFO L226 Difference]: Without dead ends: 934 [2019-11-20 10:01:30,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:01:30,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2019-11-20 10:01:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 922. [2019-11-20 10:01:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2019-11-20 10:01:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1345 transitions. [2019-11-20 10:01:30,292 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1345 transitions. Word has length 59 [2019-11-20 10:01:30,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:01:30,293 INFO L462 AbstractCegarLoop]: Abstraction has 922 states and 1345 transitions. [2019-11-20 10:01:30,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:01:30,293 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1345 transitions. [2019-11-20 10:01:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-20 10:01:30,295 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:01:30,295 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:01:30,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:30,500 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 10:01:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:01:30,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1593799391, now seen corresponding path program 1 times [2019-11-20 10:01:30,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:01:30,501 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450212602] [2019-11-20 10:01:30,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:01:30,513 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-20 10:01:30,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976237012] [2019-11-20 10:01:30,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_611e8565-4cd2-43ba-8013-683131934447/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 [2019-11-20 10:01:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:01:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:01:30,802 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:01:30,802 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:01:31,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 10:01:31,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:01:31 BoogieIcfgContainer [2019-11-20 10:01:31,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:01:31,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:01:31,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:01:31,102 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:01:31,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:25" (3/4) ... [2019-11-20 10:01:31,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:01:31,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:01:31,109 INFO L168 Benchmark]: Toolchain (without parser) took 7551.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -111.8 MB). Peak memory consumption was 79.5 MB. Max. memory is 11.5 GB. [2019-11-20 10:01:31,109 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:01:31,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:01:31,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:01:31,111 INFO L168 Benchmark]: Boogie Preprocessor took 42.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:01:31,112 INFO L168 Benchmark]: RCFGBuilder took 1142.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:01:31,113 INFO L168 Benchmark]: TraceAbstraction took 5668.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:01:31,113 INFO L168 Benchmark]: Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:01:31,116 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 605.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1142.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5668.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 543]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L687] int s ; [L688] int tmp ; [L692] s = 8464 [L12] int s__info_callback = __VERIFIER_nondet_int(); [L13] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int(); [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int(); [L21] int s__rwstate ; [L22] int s__init_buf___0 ; [L23] int s__debug = __VERIFIER_nondet_int(); [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int(); [L26] int s__options = __VERIFIER_nondet_int(); [L27] int s__verify_mode = __VERIFIER_nondet_int(); [L28] int s__session__peer = __VERIFIER_nondet_int(); [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L30] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L31] int s__ctx__stats__sess_accept_renegotiate ; [L32] int s__ctx__stats__sess_accept ; [L33] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int buf = __VERIFIER_nondet_int(); [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp = __VERIFIER_nondet_ulong(); [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int(); [L54] int tmp___2 = __VERIFIER_nondet_int(); [L55] int tmp___3 ; [L56] int tmp___4 ; [L57] int tmp___5 ; [L58] int tmp___6 ; [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long(); [L61] int tmp___9 ; [L62] int tmp___10 ; [L63] int blastFlag ; [L64] int ag_X ; [L65] int ag_Y = __VERIFIER_nondet_int(); [L66] int ag_Z ; [L67] int __retres70 ; [L71] s__state = initial_state [L72] blastFlag = 0 [L73] Time = tmp [L74] cb = 0 [L75] ret = -1 [L76] skip = 0 [L77] got_new_session = 0 [L78] COND TRUE s__info_callback != 0 [L79] cb = s__info_callback [L87] s__in_handshake = s__in_handshake + 1 [L88] COND FALSE !(tmp___1 & 12288) [L97] COND FALSE !(s__cert == 0) [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND TRUE s__state == 8464 [L289] s__shutdown = 0 [L290] ret = __VERIFIER_nondet_int() [L291] COND TRUE blastFlag == 0 [L292] blastFlag = 1 [L296] COND FALSE !(ret <= 0) [L301] got_new_session = 1 [L302] s__state = 8496 [L303] s__init_num = 0 [L636] COND FALSE !(! s__s3__tmp__reuse_message) [L665] skip = 0 [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND FALSE !(s__state == 8464) [L134] COND FALSE !(s__state == 8465) [L137] COND FALSE !(s__state == 8466) [L140] COND TRUE s__state == 8496 [L307] ret = __VERIFIER_nondet_int() [L308] COND TRUE blastFlag == 1 [L309] blastFlag = 2 [L313] COND FALSE !(ret <= 0) [L318] COND TRUE \read(s__hit) [L319] s__state = 8656 [L323] s__init_num = 0 [L636] COND FALSE !(! s__s3__tmp__reuse_message) [L665] skip = 0 [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND FALSE !(s__state == 8464) [L134] COND FALSE !(s__state == 8465) [L137] COND FALSE !(s__state == 8466) [L140] COND FALSE !(s__state == 8496) [L143] COND FALSE !(s__state == 8497) [L146] COND FALSE !(s__state == 8512) [L149] COND FALSE !(s__state == 8513) [L152] COND FALSE !(s__state == 8528) [L155] COND FALSE !(s__state == 8529) [L158] COND FALSE !(s__state == 8544) [L161] COND FALSE !(s__state == 8545) [L164] COND FALSE !(s__state == 8560) [L167] COND FALSE !(s__state == 8561) [L170] COND FALSE !(s__state == 8448) [L173] COND FALSE !(s__state == 8576) [L176] COND FALSE !(s__state == 8577) [L179] COND FALSE !(s__state == 8592) [L182] COND FALSE !(s__state == 8593) [L185] COND FALSE !(s__state == 8608) [L188] COND FALSE !(s__state == 8609) [L191] COND FALSE !(s__state == 8640) [L194] COND FALSE !(s__state == 8641) [L197] COND TRUE s__state == 8656 [L524] s__session__cipher = s__s3__tmp__new_cipher [L525] tmp___9 = __VERIFIER_nondet_int() [L526] COND FALSE !(! tmp___9) [L532] ret = __VERIFIER_nondet_int() [L533] COND TRUE blastFlag == 2 [L534] blastFlag = 3 [L538] COND FALSE !(ret <= 0) [L543] ag_X * ag_Y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 162 locations, 12 error locations. Result: UNSAFE, OverallTime: 5.6s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2218 SDtfs, 1975 SDslu, 837 SDs, 0 SdLazy, 1058 SolverSat, 352 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=922occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 189 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 442 ConstructedInterpolants, 0 QuantifiedInterpolants, 46586 SizeOfPredicates, 4 NumberOfNonLiveVariables, 548 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 25/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...