./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/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 d3e65a9c88991657ab2059827ecd5dfb9aad85be ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/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 0.2.0-a4ecdab [2020-11-30 01:00:13,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:00:13,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:00:13,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:00:13,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:00:13,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:00:13,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:00:13,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:00:13,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:00:13,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:00:13,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:00:13,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:00:13,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:00:13,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:00:13,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:00:13,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:00:13,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:00:13,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:00:13,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:00:13,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:00:13,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:00:13,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:00:13,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:00:13,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:00:13,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:00:13,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:00:13,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:00:13,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:00:13,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:00:13,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:00:13,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:00:13,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:00:13,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:00:13,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:00:13,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:00:13,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:00:13,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:00:13,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:00:13,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:00:13,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:00:13,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:00:13,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-30 01:00:13,387 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:00:13,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:00:13,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:00:13,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:00:13,390 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:00:13,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:00:13,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:00:13,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:00:13,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:00:13,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:00:13,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:00:13,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:00:13,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:00:13,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:00:13,393 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:00:13,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:00:13,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:00:13,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:00:13,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:00:13,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:00:13,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:00:13,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:00:13,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:00:13,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:00:13,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:00:13,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:00:13,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:00:13,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:00:13,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:00:13,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:00:13,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:00:13,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e65a9c88991657ab2059827ecd5dfb9aad85be [2020-11-30 01:00:13,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:00:13,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:00:13,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:00:13,662 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:00:13,666 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:00:13,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2020-11-30 01:00:13,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/data/4c59ceebc/aa8995c804a34020b0609168a5ccffbc/FLAGfc75d4999 [2020-11-30 01:00:14,270 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:00:14,271 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2020-11-30 01:00:14,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/data/4c59ceebc/aa8995c804a34020b0609168a5ccffbc/FLAGfc75d4999 [2020-11-30 01:00:14,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/data/4c59ceebc/aa8995c804a34020b0609168a5ccffbc [2020-11-30 01:00:14,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:00:14,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:00:14,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:14,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:00:14,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:00:14,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:14,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7476cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14, skipping insertion in model container [2020-11-30 01:00:14,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:14,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:00:14,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:00:14,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:14,882 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:00:14,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:00:14,958 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:00:14,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14 WrapperNode [2020-11-30 01:00:14,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:00:14,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:14,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:00:14,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:00:14,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:14,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:00:15,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:00:15,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:00:15,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:00:15,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... [2020-11-30 01:00:15,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:00:15,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:00:15,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:00:15,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:00:15,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:00:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:00:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:00:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:00:15,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:00:15,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:00:15,961 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-11-30 01:00:15,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:15 BoogieIcfgContainer [2020-11-30 01:00:15,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:00:15,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:00:15,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:00:15,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:00:15,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:00:14" (1/3) ... [2020-11-30 01:00:15,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f79a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:00:15, skipping insertion in model container [2020-11-30 01:00:15,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:00:14" (2/3) ... [2020-11-30 01:00:15,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67f79a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:00:15, skipping insertion in model container [2020-11-30 01:00:15,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:15" (3/3) ... [2020-11-30 01:00:15,974 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2020-11-30 01:00:15,985 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:00:15,991 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-11-30 01:00:16,003 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-11-30 01:00:16,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:00:16,033 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:00:16,033 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:00:16,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:00:16,034 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:00:16,034 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:00:16,034 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:00:16,034 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:00:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-11-30 01:00:16,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:00:16,067 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:16,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:16,069 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:16,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2020-11-30 01:00:16,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:16,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690093496] [2020-11-30 01:00:16,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:16,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690093496] [2020-11-30 01:00:16,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:16,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:00:16,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52240166] [2020-11-30 01:00:16,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:00:16,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:16,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:00:16,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:00:16,251 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2020-11-30 01:00:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:16,289 INFO L93 Difference]: Finished difference Result 273 states and 381 transitions. [2020-11-30 01:00:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:00:16,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:00:16,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:16,304 INFO L225 Difference]: With dead ends: 273 [2020-11-30 01:00:16,304 INFO L226 Difference]: Without dead ends: 107 [2020-11-30 01:00:16,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:00:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-30 01:00:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-30 01:00:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 01:00:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2020-11-30 01:00:16,358 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 7 [2020-11-30 01:00:16,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:16,359 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2020-11-30 01:00:16,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:00:16,359 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2020-11-30 01:00:16,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:00:16,360 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:16,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:16,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:00:16,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:16,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:16,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2020-11-30 01:00:16,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:16,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270965093] [2020-11-30 01:00:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:16,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:16,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270965093] [2020-11-30 01:00:16,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:16,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:00:16,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863939892] [2020-11-30 01:00:16,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:00:16,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:16,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:00:16,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:00:16,428 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand 3 states. [2020-11-30 01:00:16,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:16,640 INFO L93 Difference]: Finished difference Result 211 states and 254 transitions. [2020-11-30 01:00:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:00:16,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 01:00:16,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:16,648 INFO L225 Difference]: With dead ends: 211 [2020-11-30 01:00:16,648 INFO L226 Difference]: Without dead ends: 121 [2020-11-30 01:00:16,652 INFO L677 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 [2020-11-30 01:00:16,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-30 01:00:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2020-11-30 01:00:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 01:00:16,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2020-11-30 01:00:16,694 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 7 [2020-11-30 01:00:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:16,694 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2020-11-30 01:00:16,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:00:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2020-11-30 01:00:16,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:00:16,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:16,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:16,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:00:16,696 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:16,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:16,697 INFO L82 PathProgramCache]: Analyzing trace with hash -866677448, now seen corresponding path program 1 times [2020-11-30 01:00:16,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:16,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278753694] [2020-11-30 01:00:16,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:16,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:16,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278753694] [2020-11-30 01:00:16,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:16,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:16,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506045522] [2020-11-30 01:00:16,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:16,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:16,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:16,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:16,802 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand 4 states. [2020-11-30 01:00:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:16,962 INFO L93 Difference]: Finished difference Result 172 states and 205 transitions. [2020-11-30 01:00:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:16,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 01:00:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:16,966 INFO L225 Difference]: With dead ends: 172 [2020-11-30 01:00:16,966 INFO L226 Difference]: Without dead ends: 165 [2020-11-30 01:00:16,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:16,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-11-30 01:00:16,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 120. [2020-11-30 01:00:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-30 01:00:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2020-11-30 01:00:16,999 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 10 [2020-11-30 01:00:17,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:17,000 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2020-11-30 01:00:17,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2020-11-30 01:00:17,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:00:17,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:17,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:17,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:00:17,004 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:17,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1097196978, now seen corresponding path program 1 times [2020-11-30 01:00:17,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:17,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776849857] [2020-11-30 01:00:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776849857] [2020-11-30 01:00:17,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:17,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:00:17,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889846719] [2020-11-30 01:00:17,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:00:17,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:17,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:00:17,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:00:17,073 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand 3 states. [2020-11-30 01:00:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:17,175 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2020-11-30 01:00:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:00:17,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-30 01:00:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:17,178 INFO L225 Difference]: With dead ends: 164 [2020-11-30 01:00:17,178 INFO L226 Difference]: Without dead ends: 159 [2020-11-30 01:00:17,179 INFO L677 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 [2020-11-30 01:00:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-30 01:00:17,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 112. [2020-11-30 01:00:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-30 01:00:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 137 transitions. [2020-11-30 01:00:17,191 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 137 transitions. Word has length 11 [2020-11-30 01:00:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:17,192 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 137 transitions. [2020-11-30 01:00:17,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:00:17,192 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 137 transitions. [2020-11-30 01:00:17,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:00:17,193 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:17,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:17,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:00:17,194 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:17,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1234080256, now seen corresponding path program 1 times [2020-11-30 01:00:17,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:17,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901797504] [2020-11-30 01:00:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901797504] [2020-11-30 01:00:17,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:17,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:17,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774812505] [2020-11-30 01:00:17,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:17,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:17,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:17,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:17,283 INFO L87 Difference]: Start difference. First operand 112 states and 137 transitions. Second operand 4 states. [2020-11-30 01:00:17,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:17,435 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2020-11-30 01:00:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:17,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 01:00:17,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:17,439 INFO L225 Difference]: With dead ends: 160 [2020-11-30 01:00:17,439 INFO L226 Difference]: Without dead ends: 158 [2020-11-30 01:00:17,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:17,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-30 01:00:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 114. [2020-11-30 01:00:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-30 01:00:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2020-11-30 01:00:17,461 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 12 [2020-11-30 01:00:17,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:17,462 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2020-11-30 01:00:17,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:17,462 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2020-11-30 01:00:17,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:00:17,463 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:17,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:17,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:00:17,464 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:17,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2020-11-30 01:00:17,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:17,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37833131] [2020-11-30 01:00:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37833131] [2020-11-30 01:00:17,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:17,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:17,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655858922] [2020-11-30 01:00:17,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:17,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:17,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:17,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:17,533 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand 4 states. [2020-11-30 01:00:17,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:17,679 INFO L93 Difference]: Finished difference Result 257 states and 307 transitions. [2020-11-30 01:00:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:17,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 01:00:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:17,684 INFO L225 Difference]: With dead ends: 257 [2020-11-30 01:00:17,684 INFO L226 Difference]: Without dead ends: 171 [2020-11-30 01:00:17,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-30 01:00:17,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 119. [2020-11-30 01:00:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-30 01:00:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2020-11-30 01:00:17,706 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 12 [2020-11-30 01:00:17,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:17,708 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2020-11-30 01:00:17,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:17,708 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2020-11-30 01:00:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:00:17,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:17,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:17,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:00:17,712 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,713 INFO L82 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2020-11-30 01:00:17,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:17,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145340016] [2020-11-30 01:00:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:17,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145340016] [2020-11-30 01:00:17,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:17,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:17,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404406439] [2020-11-30 01:00:17,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:17,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:17,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:17,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:17,765 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand 4 states. [2020-11-30 01:00:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:17,906 INFO L93 Difference]: Finished difference Result 169 states and 203 transitions. [2020-11-30 01:00:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:17,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:00:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:17,911 INFO L225 Difference]: With dead ends: 169 [2020-11-30 01:00:17,911 INFO L226 Difference]: Without dead ends: 167 [2020-11-30 01:00:17,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-30 01:00:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 122. [2020-11-30 01:00:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-30 01:00:17,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2020-11-30 01:00:17,935 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 13 [2020-11-30 01:00:17,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:17,936 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2020-11-30 01:00:17,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2020-11-30 01:00:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:00:17,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:17,941 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:17,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:00:17,942 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:17,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:17,943 INFO L82 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2020-11-30 01:00:17,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:17,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256795179] [2020-11-30 01:00:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:18,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256795179] [2020-11-30 01:00:18,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827550180] [2020-11-30 01:00:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c86d69d8-6df4-4d09-a24e-49d4a5292169/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:00:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:18,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 01:00:18,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:00:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:18,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 01:00:18,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-11-30 01:00:18,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310254097] [2020-11-30 01:00:18,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:18,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:18,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:18,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:00:18,210 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand 4 states. [2020-11-30 01:00:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:18,473 INFO L93 Difference]: Finished difference Result 209 states and 249 transitions. [2020-11-30 01:00:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:18,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 01:00:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:18,475 INFO L225 Difference]: With dead ends: 209 [2020-11-30 01:00:18,475 INFO L226 Difference]: Without dead ends: 206 [2020-11-30 01:00:18,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:00:18,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-30 01:00:18,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 109. [2020-11-30 01:00:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-30 01:00:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2020-11-30 01:00:18,486 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 13 [2020-11-30 01:00:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:18,487 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2020-11-30 01:00:18,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2020-11-30 01:00:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:00:18,488 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:18,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:18,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-11-30 01:00:18,689 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2020-11-30 01:00:18,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:18,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570187940] [2020-11-30 01:00:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:18,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570187940] [2020-11-30 01:00:18,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:18,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:18,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34946427] [2020-11-30 01:00:18,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:18,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:18,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:18,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:18,772 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand 4 states. [2020-11-30 01:00:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:18,903 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2020-11-30 01:00:18,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:18,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 01:00:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:18,906 INFO L225 Difference]: With dead ends: 160 [2020-11-30 01:00:18,906 INFO L226 Difference]: Without dead ends: 158 [2020-11-30 01:00:18,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-30 01:00:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 111. [2020-11-30 01:00:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-30 01:00:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2020-11-30 01:00:18,919 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 15 [2020-11-30 01:00:18,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:18,920 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2020-11-30 01:00:18,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:18,921 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2020-11-30 01:00:18,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:00:18,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:18,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:18,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 01:00:18,930 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:18,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:18,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1418335763, now seen corresponding path program 1 times [2020-11-30 01:00:18,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:18,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496497829] [2020-11-30 01:00:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:18,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:18,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496497829] [2020-11-30 01:00:18,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:18,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:00:18,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662790433] [2020-11-30 01:00:18,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:00:18,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:18,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:00:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:18,999 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand 4 states. [2020-11-30 01:00:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:19,136 INFO L93 Difference]: Finished difference Result 200 states and 237 transitions. [2020-11-30 01:00:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:00:19,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 01:00:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:19,139 INFO L225 Difference]: With dead ends: 200 [2020-11-30 01:00:19,139 INFO L226 Difference]: Without dead ends: 197 [2020-11-30 01:00:19,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:00:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-30 01:00:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 99. [2020-11-30 01:00:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-30 01:00:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2020-11-30 01:00:19,151 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 15 [2020-11-30 01:00:19,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:19,152 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2020-11-30 01:00:19,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:00:19,152 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2020-11-30 01:00:19,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 01:00:19,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:19,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:19,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 01:00:19,154 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:19,155 INFO L82 PathProgramCache]: Analyzing trace with hash 367470027, now seen corresponding path program 1 times [2020-11-30 01:00:19,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:19,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95736548] [2020-11-30 01:00:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:19,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95736548] [2020-11-30 01:00:19,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:19,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:00:19,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973393046] [2020-11-30 01:00:19,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:00:19,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:19,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:00:19,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:00:19,303 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand 7 states. [2020-11-30 01:00:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:19,597 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2020-11-30 01:00:19,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 01:00:19,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 01:00:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:19,600 INFO L225 Difference]: With dead ends: 266 [2020-11-30 01:00:19,601 INFO L226 Difference]: Without dead ends: 230 [2020-11-30 01:00:19,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:00:19,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-11-30 01:00:19,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 129. [2020-11-30 01:00:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-30 01:00:19,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2020-11-30 01:00:19,617 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 18 [2020-11-30 01:00:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:19,619 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2020-11-30 01:00:19,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:00:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2020-11-30 01:00:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:00:19,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:19,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:00:19,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 01:00:19,621 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:19,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1008645611, now seen corresponding path program 1 times [2020-11-30 01:00:19,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:19,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184070384] [2020-11-30 01:00:19,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:19,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:19,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184070384] [2020-11-30 01:00:19,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:19,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:00:19,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308284047] [2020-11-30 01:00:19,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:00:19,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:19,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:00:19,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:00:19,747 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand 6 states. [2020-11-30 01:00:19,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:19,928 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2020-11-30 01:00:19,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:00:19,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-11-30 01:00:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:19,932 INFO L225 Difference]: With dead ends: 190 [2020-11-30 01:00:19,932 INFO L226 Difference]: Without dead ends: 131 [2020-11-30 01:00:19,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:00:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-30 01:00:19,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2020-11-30 01:00:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-30 01:00:19,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2020-11-30 01:00:19,951 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 20 [2020-11-30 01:00:19,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:19,952 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2020-11-30 01:00:19,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:00:19,952 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2020-11-30 01:00:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:00:19,953 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:19,953 INFO L422 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] [2020-11-30 01:00:19,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 01:00:19,954 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:19,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:19,955 INFO L82 PathProgramCache]: Analyzing trace with hash 28946906, now seen corresponding path program 1 times [2020-11-30 01:00:19,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:19,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504501932] [2020-11-30 01:00:19,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:20,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504501932] [2020-11-30 01:00:20,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:20,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:00:20,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755717333] [2020-11-30 01:00:20,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:00:20,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:20,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:00:20,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:00:20,056 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand 5 states. [2020-11-30 01:00:20,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:20,204 INFO L93 Difference]: Finished difference Result 272 states and 329 transitions. [2020-11-30 01:00:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:00:20,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-30 01:00:20,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:20,207 INFO L225 Difference]: With dead ends: 272 [2020-11-30 01:00:20,207 INFO L226 Difference]: Without dead ends: 231 [2020-11-30 01:00:20,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:00:20,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-30 01:00:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 192. [2020-11-30 01:00:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-11-30 01:00:20,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 237 transitions. [2020-11-30 01:00:20,254 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 237 transitions. Word has length 24 [2020-11-30 01:00:20,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:20,255 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 237 transitions. [2020-11-30 01:00:20,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:00:20,255 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 237 transitions. [2020-11-30 01:00:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 01:00:20,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:20,256 INFO L422 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] [2020-11-30 01:00:20,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 01:00:20,258 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:20,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:20,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1001331080, now seen corresponding path program 1 times [2020-11-30 01:00:20,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:20,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197442452] [2020-11-30 01:00:20,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:20,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:20,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197442452] [2020-11-30 01:00:20,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:20,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:00:20,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533343188] [2020-11-30 01:00:20,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:00:20,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:20,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:00:20,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:00:20,505 INFO L87 Difference]: Start difference. First operand 192 states and 237 transitions. Second operand 7 states. [2020-11-30 01:00:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:20,823 INFO L93 Difference]: Finished difference Result 323 states and 379 transitions. [2020-11-30 01:00:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:00:20,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-11-30 01:00:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:20,826 INFO L225 Difference]: With dead ends: 323 [2020-11-30 01:00:20,827 INFO L226 Difference]: Without dead ends: 288 [2020-11-30 01:00:20,829 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:00:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-11-30 01:00:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 226. [2020-11-30 01:00:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-30 01:00:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 278 transitions. [2020-11-30 01:00:20,854 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 278 transitions. Word has length 28 [2020-11-30 01:00:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:20,854 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 278 transitions. [2020-11-30 01:00:20,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:00:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 278 transitions. [2020-11-30 01:00:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:00:20,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:20,859 INFO L422 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] [2020-11-30 01:00:20,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 01:00:20,859 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:20,860 INFO L82 PathProgramCache]: Analyzing trace with hash -206483588, now seen corresponding path program 1 times [2020-11-30 01:00:20,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:20,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052253267] [2020-11-30 01:00:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:21,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052253267] [2020-11-30 01:00:21,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:21,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-30 01:00:21,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270920613] [2020-11-30 01:00:21,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:00:21,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:21,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:00:21,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:00:21,253 INFO L87 Difference]: Start difference. First operand 226 states and 278 transitions. Second operand 9 states. [2020-11-30 01:00:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:21,894 INFO L93 Difference]: Finished difference Result 303 states and 351 transitions. [2020-11-30 01:00:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:00:21,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-11-30 01:00:21,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:21,898 INFO L225 Difference]: With dead ends: 303 [2020-11-30 01:00:21,898 INFO L226 Difference]: Without dead ends: 300 [2020-11-30 01:00:21,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-30 01:00:21,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-11-30 01:00:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 239. [2020-11-30 01:00:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-30 01:00:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 293 transitions. [2020-11-30 01:00:21,930 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 293 transitions. Word has length 30 [2020-11-30 01:00:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:21,930 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 293 transitions. [2020-11-30 01:00:21,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:00:21,931 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 293 transitions. [2020-11-30 01:00:21,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:00:21,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:21,933 INFO L422 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] [2020-11-30 01:00:21,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 01:00:21,934 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash -630648114, now seen corresponding path program 1 times [2020-11-30 01:00:21,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:21,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093164569] [2020-11-30 01:00:21,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:22,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:22,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093164569] [2020-11-30 01:00:22,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:22,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:00:22,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720193913] [2020-11-30 01:00:22,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:00:22,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:22,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:00:22,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:00:22,062 INFO L87 Difference]: Start difference. First operand 239 states and 293 transitions. Second operand 7 states. [2020-11-30 01:00:22,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:22,261 INFO L93 Difference]: Finished difference Result 278 states and 334 transitions. [2020-11-30 01:00:22,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:00:22,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-11-30 01:00:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:22,265 INFO L225 Difference]: With dead ends: 278 [2020-11-30 01:00:22,265 INFO L226 Difference]: Without dead ends: 170 [2020-11-30 01:00:22,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:00:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-30 01:00:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-11-30 01:00:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-30 01:00:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2020-11-30 01:00:22,293 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 30 [2020-11-30 01:00:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:22,294 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2020-11-30 01:00:22,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:00:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2020-11-30 01:00:22,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:00:22,295 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:22,295 INFO L422 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] [2020-11-30 01:00:22,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 01:00:22,296 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:22,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:22,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2129165813, now seen corresponding path program 1 times [2020-11-30 01:00:22,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:22,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140976821] [2020-11-30 01:00:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:22,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140976821] [2020-11-30 01:00:22,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:22,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:00:22,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523553658] [2020-11-30 01:00:22,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:00:22,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:22,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:00:22,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:00:22,524 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand 8 states. [2020-11-30 01:00:22,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:22,857 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2020-11-30 01:00:22,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:00:22,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2020-11-30 01:00:22,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:22,860 INFO L225 Difference]: With dead ends: 215 [2020-11-30 01:00:22,860 INFO L226 Difference]: Without dead ends: 214 [2020-11-30 01:00:22,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:00:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-30 01:00:22,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 173. [2020-11-30 01:00:22,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-11-30 01:00:22,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 210 transitions. [2020-11-30 01:00:22,879 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 210 transitions. Word has length 30 [2020-11-30 01:00:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:22,880 INFO L481 AbstractCegarLoop]: Abstraction has 173 states and 210 transitions. [2020-11-30 01:00:22,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:00:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 210 transitions. [2020-11-30 01:00:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-30 01:00:22,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:22,881 INFO L422 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] [2020-11-30 01:00:22,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 01:00:22,882 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2129106231, now seen corresponding path program 1 times [2020-11-30 01:00:22,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:22,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668929230] [2020-11-30 01:00:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:23,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:23,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668929230] [2020-11-30 01:00:23,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:23,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 01:00:23,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612621696] [2020-11-30 01:00:23,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 01:00:23,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:23,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 01:00:23,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:00:23,083 INFO L87 Difference]: Start difference. First operand 173 states and 210 transitions. Second operand 7 states. [2020-11-30 01:00:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:23,502 INFO L93 Difference]: Finished difference Result 432 states and 496 transitions. [2020-11-30 01:00:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:00:23,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-11-30 01:00:23,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:23,506 INFO L225 Difference]: With dead ends: 432 [2020-11-30 01:00:23,506 INFO L226 Difference]: Without dead ends: 373 [2020-11-30 01:00:23,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:00:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-11-30 01:00:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 236. [2020-11-30 01:00:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-30 01:00:23,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2020-11-30 01:00:23,533 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 30 [2020-11-30 01:00:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:23,534 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2020-11-30 01:00:23,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 01:00:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2020-11-30 01:00:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 01:00:23,535 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:23,536 INFO L422 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] [2020-11-30 01:00:23,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 01:00:23,536 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:23,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1723903763, now seen corresponding path program 1 times [2020-11-30 01:00:23,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:23,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978612525] [2020-11-30 01:00:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:23,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978612525] [2020-11-30 01:00:23,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:23,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:00:23,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497860215] [2020-11-30 01:00:23,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:00:23,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:23,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:00:23,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:00:23,767 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand 8 states. [2020-11-30 01:00:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:24,124 INFO L93 Difference]: Finished difference Result 346 states and 398 transitions. [2020-11-30 01:00:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:00:24,125 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-11-30 01:00:24,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:24,128 INFO L225 Difference]: With dead ends: 346 [2020-11-30 01:00:24,128 INFO L226 Difference]: Without dead ends: 315 [2020-11-30 01:00:24,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:00:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-11-30 01:00:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 236. [2020-11-30 01:00:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-30 01:00:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 287 transitions. [2020-11-30 01:00:24,152 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 287 transitions. Word has length 32 [2020-11-30 01:00:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:24,152 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 287 transitions. [2020-11-30 01:00:24,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:00:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 287 transitions. [2020-11-30 01:00:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-30 01:00:24,154 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:24,154 INFO L422 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] [2020-11-30 01:00:24,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 01:00:24,155 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:24,156 INFO L82 PathProgramCache]: Analyzing trace with hash -689121517, now seen corresponding path program 1 times [2020-11-30 01:00:24,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:24,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542616817] [2020-11-30 01:00:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:00:24,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:00:24,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542616817] [2020-11-30 01:00:24,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:00:24,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 01:00:24,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775035213] [2020-11-30 01:00:24,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:00:24,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:00:24,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:00:24,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:00:24,431 INFO L87 Difference]: Start difference. First operand 236 states and 287 transitions. Second operand 8 states. [2020-11-30 01:00:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:00:26,918 INFO L93 Difference]: Finished difference Result 276 states and 324 transitions. [2020-11-30 01:00:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 01:00:26,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-11-30 01:00:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:00:26,922 INFO L225 Difference]: With dead ends: 276 [2020-11-30 01:00:26,922 INFO L226 Difference]: Without dead ends: 275 [2020-11-30 01:00:26,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:00:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-11-30 01:00:26,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 233. [2020-11-30 01:00:26,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-30 01:00:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 283 transitions. [2020-11-30 01:00:26,944 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 283 transitions. Word has length 32 [2020-11-30 01:00:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:00:26,945 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 283 transitions. [2020-11-30 01:00:26,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:00:26,945 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 283 transitions. [2020-11-30 01:00:26,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-30 01:00:26,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:00:26,946 INFO L422 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] [2020-11-30 01:00:26,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 01:00:26,947 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:00:26,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:00:26,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1316923839, now seen corresponding path program 1 times [2020-11-30 01:00:26,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:00:26,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665642205] [2020-11-30 01:00:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:00:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:26,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:00:26,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:00:27,020 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:00:27,021 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:00:27,021 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-30 01:00:27,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:00:27 BoogieIcfgContainer [2020-11-30 01:00:27,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:00:27,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:00:27,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:00:27,079 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:00:27,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:00:15" (3/4) ... [2020-11-30 01:00:27,083 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:00:27,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:00:27,086 INFO L168 Benchmark]: Toolchain (without parser) took 12487.84 ms. Allocated memory was 111.1 MB in the beginning and 199.2 MB in the end (delta: 88.1 MB). Free memory was 88.9 MB in the beginning and 106.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,087 INFO L168 Benchmark]: CDTParser took 1.29 ms. Allocated memory is still 81.8 MB. Free memory was 46.0 MB in the beginning and 45.9 MB in the end (delta: 134.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.64 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 84.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 82.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,089 INFO L168 Benchmark]: Boogie Preprocessor took 55.96 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 80.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,090 INFO L168 Benchmark]: RCFGBuilder took 873.77 ms. Allocated memory is still 111.1 MB. Free memory was 80.1 MB in the beginning and 79.9 MB in the end (delta: 220.7 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,091 INFO L168 Benchmark]: TraceAbstraction took 11112.43 ms. Allocated memory was 111.1 MB in the beginning and 199.2 MB in the end (delta: 88.1 MB). Free memory was 79.3 MB in the beginning and 107.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:00:27,091 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 199.2 MB. Free memory was 107.0 MB in the beginning and 106.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:00:27,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29 ms. Allocated memory is still 81.8 MB. Free memory was 46.0 MB in the beginning and 45.9 MB in the end (delta: 134.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.64 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 84.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.74 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 82.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.96 ms. Allocated memory is still 111.1 MB. Free memory was 82.2 MB in the beginning and 80.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 873.77 ms. Allocated memory is still 111.1 MB. Free memory was 80.1 MB in the beginning and 79.9 MB in the end (delta: 220.7 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11112.43 ms. Allocated memory was 111.1 MB in the beginning and 199.2 MB in the end (delta: 88.1 MB). Free memory was 79.3 MB in the beginning and 107.0 MB in the end (delta: -27.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 199.2 MB. Free memory was 107.0 MB in the beginning and 106.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add ; [L226] unsigned int zero ; [L227] int sa ; [L228] int sb ; [L229] int tmp ; [L230] int tmp___0 ; [L231] int tmp___1 ; [L232] int tmp___2 ; [L233] int tmp___3 ; [L234] int tmp___4 ; [L235] int tmp___5 ; [L236] int tmp___6 ; [L237] int tmp___7 ; [L238] int tmp___8 ; [L239] int tmp___9 ; [L240] int __retres23 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L244] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L245] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] EXPR e + 128 [L70] res = m | ((unsigned int ) (e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L246] b = base2flt(mb, eb) [L248] COND FALSE !(a < zero) [L251] COND TRUE a > zero [L252] tmp = 1 [L256] sa = tmp [L258] COND FALSE !(b < zero) [L261] COND TRUE b > zero [L262] tmp___0 = 1 [L266] sb = tmp___0 [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] EXPR (int )(a >> 24U) - 128 [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] (int )(b >> 24U) - 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 149 locations, 28 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.9s, OverallIterations: 21, TraceHistogramMax: 2, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2411 SDtfs, 3400 SDslu, 5898 SDs, 0 SdLazy, 1465 SolverSat, 228 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 1041 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 38709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...