./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/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 0.2.0-7b2dab5 [2020-12-09 20:34:42,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:34:42,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:34:42,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:34:42,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:34:42,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:34:42,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:34:42,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:34:42,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:34:42,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:34:42,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:34:42,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:34:42,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:34:42,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:34:42,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:34:42,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:34:42,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:34:42,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:34:42,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:34:42,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:34:42,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:34:42,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:34:42,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:34:42,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:34:42,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:34:42,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:34:42,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:34:42,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:34:42,830 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:34:42,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:34:42,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:34:42,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:34:42,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:34:42,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:34:42,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:34:42,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:34:42,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:34:42,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:34:42,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:34:42,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:34:42,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:34:42,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 20:34:42,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:34:42,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:34:42,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:34:42,859 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:34:42,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:34:42,859 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:34:42,860 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:34:42,860 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:34:42,861 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:34:42,861 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:34:42,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:34:42,861 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:34:42,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:34:42,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:34:42,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:34:42,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:34:42,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:34:42,864 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2020-12-09 20:34:43,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:34:43,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:34:43,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:34:43,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:34:43,067 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:34:43,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-12-09 20:34:43,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/data/810735170/d18d7bc355dd4b39bcfc480cb7b1086d/FLAG940da8c40 [2020-12-09 20:34:43,513 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:34:43,513 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-12-09 20:34:43,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/data/810735170/d18d7bc355dd4b39bcfc480cb7b1086d/FLAG940da8c40 [2020-12-09 20:34:43,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/data/810735170/d18d7bc355dd4b39bcfc480cb7b1086d [2020-12-09 20:34:43,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:34:43,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:34:43,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:34:43,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:34:43,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:34:43,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5698b489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43, skipping insertion in model container [2020-12-09 20:34:43,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:34:43,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:34:43,653 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2020-12-09 20:34:43,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:34:43,696 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:34:43,705 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2020-12-09 20:34:43,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:34:43,741 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:34:43,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43 WrapperNode [2020-12-09 20:34:43,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:34:43,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:34:43,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:34:43,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:34:43,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:34:43,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:34:43,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:34:43,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:34:43,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... [2020-12-09 20:34:43,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:34:43,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:34:43,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:34:43,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:34:43,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:34:43,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:34:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:34:43,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:34:43,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:34:44,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:34:44,592 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-09 20:34:44,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:44 BoogieIcfgContainer [2020-12-09 20:34:44,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:34:44,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:34:44,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:34:44,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:34:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:34:43" (1/3) ... [2020-12-09 20:34:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9af8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:34:44, skipping insertion in model container [2020-12-09 20:34:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:34:43" (2/3) ... [2020-12-09 20:34:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9af8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:34:44, skipping insertion in model container [2020-12-09 20:34:44,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:44" (3/3) ... [2020-12-09 20:34:44,602 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2020-12-09 20:34:44,611 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:34:44,613 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-12-09 20:34:44,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-12-09 20:34:44,640 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:34:44,640 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:34:44,640 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:34:44,641 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:34:44,641 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:34:44,641 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:34:44,641 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:34:44,641 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:34:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-12-09 20:34:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 20:34:44,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:44,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 20:34:44,656 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]=== [2020-12-09 20:34:44,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:44,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1351896325, now seen corresponding path program 1 times [2020-12-09 20:34:44,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:44,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242488520] [2020-12-09 20:34:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:44,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:44,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242488520] [2020-12-09 20:34:44,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:44,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:44,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282156027] [2020-12-09 20:34:44,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 20:34:44,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:44,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 20:34:44,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:34:44,792 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-12-09 20:34:44,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:44,815 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2020-12-09 20:34:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 20:34:44,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 20:34:44,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:44,825 INFO L225 Difference]: With dead ends: 177 [2020-12-09 20:34:44,826 INFO L226 Difference]: Without dead ends: 90 [2020-12-09 20:34:44,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:34:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-09 20:34:44,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-12-09 20:34:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-09 20:34:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2020-12-09 20:34:44,864 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 6 [2020-12-09 20:34:44,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:44,864 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2020-12-09 20:34:44,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 20:34:44,864 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2020-12-09 20:34:44,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 20:34:44,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:44,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 20:34:44,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:34:44,866 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]=== [2020-12-09 20:34:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:44,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1350567776, now seen corresponding path program 1 times [2020-12-09 20:34:44,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:44,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654703512] [2020-12-09 20:34:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:44,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654703512] [2020-12-09 20:34:44,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:44,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 20:34:44,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136012165] [2020-12-09 20:34:44,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:44,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:44,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:44,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:44,915 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand 3 states. [2020-12-09 20:34:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,006 INFO L93 Difference]: Finished difference Result 177 states and 210 transitions. [2020-12-09 20:34:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:45,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 20:34:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,008 INFO L225 Difference]: With dead ends: 177 [2020-12-09 20:34:45,008 INFO L226 Difference]: Without dead ends: 103 [2020-12-09 20:34:45,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-09 20:34:45,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2020-12-09 20:34:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 20:34:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-12-09 20:34:45,017 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 6 [2020-12-09 20:34:45,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,017 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-12-09 20:34:45,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-12-09 20:34:45,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 20:34:45,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 20:34:45,019 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]=== [2020-12-09 20:34:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,019 INFO L82 PathProgramCache]: Analyzing trace with hash -843985822, now seen corresponding path program 1 times [2020-12-09 20:34:45,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105147092] [2020-12-09 20:34:45,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105147092] [2020-12-09 20:34:45,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138131275] [2020-12-09 20:34:45,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:45,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:45,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,054 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 4 states. [2020-12-09 20:34:45,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,130 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2020-12-09 20:34:45,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:45,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-09 20:34:45,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,131 INFO L225 Difference]: With dead ends: 139 [2020-12-09 20:34:45,131 INFO L226 Difference]: Without dead ends: 132 [2020-12-09 20:34:45,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:34:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-12-09 20:34:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 103. [2020-12-09 20:34:45,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-09 20:34:45,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2020-12-09 20:34:45,138 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 8 [2020-12-09 20:34:45,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,138 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2020-12-09 20:34:45,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2020-12-09 20:34:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:34:45,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 20:34:45,140 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]=== [2020-12-09 20:34:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,140 INFO L82 PathProgramCache]: Analyzing trace with hash -393756572, now seen corresponding path program 1 times [2020-12-09 20:34:45,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174490163] [2020-12-09 20:34:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174490163] [2020-12-09 20:34:45,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300214460] [2020-12-09 20:34:45,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:34:45,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:34:45,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:34:45,163 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand 3 states. [2020-12-09 20:34:45,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,209 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2020-12-09 20:34:45,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:34:45,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 20:34:45,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,211 INFO L225 Difference]: With dead ends: 131 [2020-12-09 20:34:45,211 INFO L226 Difference]: Without dead ends: 126 [2020-12-09 20:34:45,211 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 [2020-12-09 20:34:45,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-12-09 20:34:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 95. [2020-12-09 20:34:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-09 20:34:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2020-12-09 20:34:45,219 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 9 [2020-12-09 20:34:45,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,219 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2020-12-09 20:34:45,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:34:45,219 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2020-12-09 20:34:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 20:34:45,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 20:34:45,220 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]=== [2020-12-09 20:34:45,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1118804315, now seen corresponding path program 1 times [2020-12-09 20:34:45,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154665942] [2020-12-09 20:34:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154665942] [2020-12-09 20:34:45,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:45,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935445130] [2020-12-09 20:34:45,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:34:45,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:34:45,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:34:45,298 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand 6 states. [2020-12-09 20:34:45,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,345 INFO L93 Difference]: Finished difference Result 166 states and 192 transitions. [2020-12-09 20:34:45,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:34:45,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-09 20:34:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,347 INFO L225 Difference]: With dead ends: 166 [2020-12-09 20:34:45,347 INFO L226 Difference]: Without dead ends: 140 [2020-12-09 20:34:45,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:34:45,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-09 20:34:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 95. [2020-12-09 20:34:45,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-09 20:34:45,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2020-12-09 20:34:45,353 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 10 [2020-12-09 20:34:45,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,353 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2020-12-09 20:34:45,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:34:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2020-12-09 20:34:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 20:34:45,353 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 20:34:45,354 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]=== [2020-12-09 20:34:45,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1109473905, now seen corresponding path program 1 times [2020-12-09 20:34:45,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386275747] [2020-12-09 20:34:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386275747] [2020-12-09 20:34:45,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896807206] [2020-12-09 20:34:45,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:45,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:45,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,379 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand 4 states. [2020-12-09 20:34:45,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,444 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2020-12-09 20:34:45,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:45,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 20:34:45,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,446 INFO L225 Difference]: With dead ends: 129 [2020-12-09 20:34:45,446 INFO L226 Difference]: Without dead ends: 127 [2020-12-09 20:34:45,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:34:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-09 20:34:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2020-12-09 20:34:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-09 20:34:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2020-12-09 20:34:45,454 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 10 [2020-12-09 20:34:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,454 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2020-12-09 20:34:45,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:45,454 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2020-12-09 20:34:45,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 20:34:45,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 20:34:45,455 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]=== [2020-12-09 20:34:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1565896362, now seen corresponding path program 1 times [2020-12-09 20:34:45,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025203326] [2020-12-09 20:34:45,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025203326] [2020-12-09 20:34:45,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375185880] [2020-12-09 20:34:45,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:45,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:45,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,483 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand 4 states. [2020-12-09 20:34:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,539 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2020-12-09 20:34:45,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:45,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 20:34:45,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,540 INFO L225 Difference]: With dead ends: 130 [2020-12-09 20:34:45,540 INFO L226 Difference]: Without dead ends: 128 [2020-12-09 20:34:45,540 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:34:45,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-09 20:34:45,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2020-12-09 20:34:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-09 20:34:45,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2020-12-09 20:34:45,546 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 10 [2020-12-09 20:34:45,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,546 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2020-12-09 20:34:45,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:45,546 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2020-12-09 20:34:45,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 20:34:45,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 20:34:45,547 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]=== [2020-12-09 20:34:45,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1734633632, now seen corresponding path program 1 times [2020-12-09 20:34:45,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084278328] [2020-12-09 20:34:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084278328] [2020-12-09 20:34:45,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560168478] [2020-12-09 20:34:45,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:45,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:45,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,570 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 4 states. [2020-12-09 20:34:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,646 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2020-12-09 20:34:45,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:45,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 20:34:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,648 INFO L225 Difference]: With dead ends: 213 [2020-12-09 20:34:45,648 INFO L226 Difference]: Without dead ends: 140 [2020-12-09 20:34:45,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-09 20:34:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 105. [2020-12-09 20:34:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-09 20:34:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-12-09 20:34:45,654 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 11 [2020-12-09 20:34:45,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,654 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-12-09 20:34:45,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:45,654 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-12-09 20:34:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 20:34:45,655 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 20:34:45,656 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]=== [2020-12-09 20:34:45,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1939988057, now seen corresponding path program 1 times [2020-12-09 20:34:45,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022551732] [2020-12-09 20:34:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022551732] [2020-12-09 20:34:45,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:45,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:34:45,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286188099] [2020-12-09 20:34:45,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:45,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:45,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:45,687 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand 4 states. [2020-12-09 20:34:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,743 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2020-12-09 20:34:45,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:45,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-12-09 20:34:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,744 INFO L225 Difference]: With dead ends: 140 [2020-12-09 20:34:45,744 INFO L226 Difference]: Without dead ends: 138 [2020-12-09 20:34:45,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:34:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-12-09 20:34:45,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 107. [2020-12-09 20:34:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-09 20:34:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2020-12-09 20:34:45,749 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 12 [2020-12-09 20:34:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,749 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2020-12-09 20:34:45,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2020-12-09 20:34:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 20:34:45,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,750 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:45,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 20:34:45,750 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]=== [2020-12-09 20:34:45,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:45,751 INFO L82 PathProgramCache]: Analyzing trace with hash 442280336, now seen corresponding path program 1 times [2020-12-09 20:34:45,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:45,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803260100] [2020-12-09 20:34:45,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803260100] [2020-12-09 20:34:45,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596215106] [2020-12-09 20:34:45,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eba31d6d-46d1-4f09-85d0-f16809effc4b/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:34:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:45,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:34:45,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:34:45,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:34:45,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:45,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 20:34:45,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2020-12-09 20:34:45,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205517707] [2020-12-09 20:34:45,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:34:45,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:45,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:34:45,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:34:45,867 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. Second operand 6 states. [2020-12-09 20:34:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:45,943 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2020-12-09 20:34:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:34:45,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-09 20:34:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:45,944 INFO L225 Difference]: With dead ends: 164 [2020-12-09 20:34:45,945 INFO L226 Difference]: Without dead ends: 161 [2020-12-09 20:34:45,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:34:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-12-09 20:34:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 94. [2020-12-09 20:34:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-09 20:34:45,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2020-12-09 20:34:45,951 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 12 [2020-12-09 20:34:45,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:45,951 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2020-12-09 20:34:45,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:34:45,951 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2020-12-09 20:34:45,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 20:34:45,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:45,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:46,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-09 20:34:46,154 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]=== [2020-12-09 20:34:46,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:46,154 INFO L82 PathProgramCache]: Analyzing trace with hash -462765783, now seen corresponding path program 1 times [2020-12-09 20:34:46,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:46,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308478469] [2020-12-09 20:34:46,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:46,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308478469] [2020-12-09 20:34:46,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:46,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:34:46,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685240465] [2020-12-09 20:34:46,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:34:46,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:46,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:34:46,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:34:46,226 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand 4 states. [2020-12-09 20:34:46,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:46,344 INFO L93 Difference]: Finished difference Result 152 states and 171 transitions. [2020-12-09 20:34:46,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:34:46,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-09 20:34:46,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:46,345 INFO L225 Difference]: With dead ends: 152 [2020-12-09 20:34:46,345 INFO L226 Difference]: Without dead ends: 149 [2020-12-09 20:34:46,346 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 [2020-12-09 20:34:46,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-09 20:34:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 82. [2020-12-09 20:34:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-09 20:34:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2020-12-09 20:34:46,350 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 13 [2020-12-09 20:34:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:46,350 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-12-09 20:34:46,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:34:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2020-12-09 20:34:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 20:34:46,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:46,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:46,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 20:34:46,351 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]=== [2020-12-09 20:34:46,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:46,352 INFO L82 PathProgramCache]: Analyzing trace with hash 320430156, now seen corresponding path program 1 times [2020-12-09 20:34:46,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:46,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147471713] [2020-12-09 20:34:46,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:46,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147471713] [2020-12-09 20:34:46,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:46,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:46,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226155268] [2020-12-09 20:34:46,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:34:46,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:46,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:34:46,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:34:46,445 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand 6 states. [2020-12-09 20:34:46,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:46,521 INFO L93 Difference]: Finished difference Result 147 states and 169 transitions. [2020-12-09 20:34:46,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:34:46,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-09 20:34:46,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:46,523 INFO L225 Difference]: With dead ends: 147 [2020-12-09 20:34:46,523 INFO L226 Difference]: Without dead ends: 123 [2020-12-09 20:34:46,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:34:46,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-12-09 20:34:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2020-12-09 20:34:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-09 20:34:46,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2020-12-09 20:34:46,528 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 14 [2020-12-09 20:34:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:46,528 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2020-12-09 20:34:46,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:34:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2020-12-09 20:34:46,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 20:34:46,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:46,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:46,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-09 20:34:46,529 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]=== [2020-12-09 20:34:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:46,529 INFO L82 PathProgramCache]: Analyzing trace with hash 2121838518, now seen corresponding path program 1 times [2020-12-09 20:34:46,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:46,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070980823] [2020-12-09 20:34:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:46,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070980823] [2020-12-09 20:34:46,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:46,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:46,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934187270] [2020-12-09 20:34:46,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:34:46,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:46,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:34:46,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:34:46,637 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand 7 states. [2020-12-09 20:34:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:46,703 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2020-12-09 20:34:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:34:46,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-12-09 20:34:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:46,704 INFO L225 Difference]: With dead ends: 123 [2020-12-09 20:34:46,704 INFO L226 Difference]: Without dead ends: 122 [2020-12-09 20:34:46,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-12-09 20:34:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-12-09 20:34:46,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2020-12-09 20:34:46,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 20:34:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2020-12-09 20:34:46,710 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 16 [2020-12-09 20:34:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:46,711 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2020-12-09 20:34:46,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:34:46,711 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2020-12-09 20:34:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 20:34:46,711 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:46,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:46,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 20:34:46,712 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]=== [2020-12-09 20:34:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:46,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1022640168, now seen corresponding path program 1 times [2020-12-09 20:34:46,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:46,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595285165] [2020-12-09 20:34:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:46,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595285165] [2020-12-09 20:34:46,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:46,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:34:46,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261076029] [2020-12-09 20:34:46,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:34:46,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:46,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:34:46,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:34:46,783 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 5 states. [2020-12-09 20:34:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:46,821 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2020-12-09 20:34:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:34:46,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-09 20:34:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:46,822 INFO L225 Difference]: With dead ends: 122 [2020-12-09 20:34:46,822 INFO L226 Difference]: Without dead ends: 83 [2020-12-09 20:34:46,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:34:46,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-09 20:34:46,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-12-09 20:34:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-09 20:34:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 98 transitions. [2020-12-09 20:34:46,827 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 98 transitions. Word has length 18 [2020-12-09 20:34:46,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:46,827 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 98 transitions. [2020-12-09 20:34:46,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:34:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 98 transitions. [2020-12-09 20:34:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 20:34:46,828 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:46,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:34:46,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 20:34:46,828 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]=== [2020-12-09 20:34:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:46,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1469465405, now seen corresponding path program 1 times [2020-12-09 20:34:46,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:46,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861197258] [2020-12-09 20:34:46,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:46,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861197258] [2020-12-09 20:34:46,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:46,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:46,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006937573] [2020-12-09 20:34:46,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:34:46,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:46,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:34:46,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:34:46,940 INFO L87 Difference]: Start difference. First operand 82 states and 98 transitions. Second operand 7 states. [2020-12-09 20:34:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:47,023 INFO L93 Difference]: Finished difference Result 170 states and 191 transitions. [2020-12-09 20:34:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:34:47,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-09 20:34:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:47,025 INFO L225 Difference]: With dead ends: 170 [2020-12-09 20:34:47,025 INFO L226 Difference]: Without dead ends: 169 [2020-12-09 20:34:47,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 20:34:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-12-09 20:34:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 102. [2020-12-09 20:34:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 20:34:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-12-09 20:34:47,032 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 18 [2020-12-09 20:34:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:47,032 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-12-09 20:34:47,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:34:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2020-12-09 20:34:47,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 20:34:47,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:47,032 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] [2020-12-09 20:34:47,032 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-09 20:34:47,032 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]=== [2020-12-09 20:34:47,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:47,033 INFO L82 PathProgramCache]: Analyzing trace with hash -887976545, now seen corresponding path program 1 times [2020-12-09 20:34:47,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:47,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052281152] [2020-12-09 20:34:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:47,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052281152] [2020-12-09 20:34:47,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:47,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:47,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528022700] [2020-12-09 20:34:47,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:34:47,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:47,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:34:47,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:34:47,135 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 7 states. [2020-12-09 20:34:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:47,213 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2020-12-09 20:34:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:34:47,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-09 20:34:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:47,214 INFO L225 Difference]: With dead ends: 169 [2020-12-09 20:34:47,214 INFO L226 Difference]: Without dead ends: 168 [2020-12-09 20:34:47,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:34:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-09 20:34:47,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 108. [2020-12-09 20:34:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-09 20:34:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2020-12-09 20:34:47,220 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 20 [2020-12-09 20:34:47,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:47,221 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2020-12-09 20:34:47,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:34:47,221 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2020-12-09 20:34:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 20:34:47,221 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:47,221 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] [2020-12-09 20:34:47,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-09 20:34:47,221 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]=== [2020-12-09 20:34:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:47,222 INFO L82 PathProgramCache]: Analyzing trace with hash -87842425, now seen corresponding path program 1 times [2020-12-09 20:34:47,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:47,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555534323] [2020-12-09 20:34:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:47,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555534323] [2020-12-09 20:34:47,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:47,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:34:47,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149507912] [2020-12-09 20:34:47,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:34:47,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:47,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:34:47,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:34:47,355 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand 7 states. [2020-12-09 20:34:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:47,443 INFO L93 Difference]: Finished difference Result 214 states and 246 transitions. [2020-12-09 20:34:47,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:34:47,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-12-09 20:34:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:47,445 INFO L225 Difference]: With dead ends: 214 [2020-12-09 20:34:47,445 INFO L226 Difference]: Without dead ends: 213 [2020-12-09 20:34:47,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:34:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-09 20:34:47,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2020-12-09 20:34:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-12-09 20:34:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2020-12-09 20:34:47,454 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 20 [2020-12-09 20:34:47,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:47,455 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2020-12-09 20:34:47,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:34:47,455 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2020-12-09 20:34:47,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 20:34:47,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:47,455 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] [2020-12-09 20:34:47,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-09 20:34:47,455 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]=== [2020-12-09 20:34:47,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1757462264, now seen corresponding path program 1 times [2020-12-09 20:34:47,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:47,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393305923] [2020-12-09 20:34:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:47,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393305923] [2020-12-09 20:34:47,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:47,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 20:34:47,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669654409] [2020-12-09 20:34:47,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 20:34:47,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:47,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 20:34:47,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-09 20:34:47,723 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand 10 states. [2020-12-09 20:34:48,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:48,245 INFO L93 Difference]: Finished difference Result 216 states and 239 transitions. [2020-12-09 20:34:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 20:34:48,246 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-12-09 20:34:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:48,247 INFO L225 Difference]: With dead ends: 216 [2020-12-09 20:34:48,247 INFO L226 Difference]: Without dead ends: 213 [2020-12-09 20:34:48,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-12-09 20:34:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-09 20:34:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 140. [2020-12-09 20:34:48,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-09 20:34:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2020-12-09 20:34:48,259 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 21 [2020-12-09 20:34:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:48,259 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2020-12-09 20:34:48,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 20:34:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2020-12-09 20:34:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 20:34:48,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:48,260 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] [2020-12-09 20:34:48,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-09 20:34:48,260 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]=== [2020-12-09 20:34:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:48,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1353244980, now seen corresponding path program 1 times [2020-12-09 20:34:48,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:48,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634481239] [2020-12-09 20:34:48,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:34:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:34:48,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634481239] [2020-12-09 20:34:48,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:34:48,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 20:34:48,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630793129] [2020-12-09 20:34:48,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 20:34:48,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:34:48,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 20:34:48,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-09 20:34:48,408 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand 10 states. [2020-12-09 20:34:48,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:34:48,697 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2020-12-09 20:34:48,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-09 20:34:48,698 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-12-09 20:34:48,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:34:48,699 INFO L225 Difference]: With dead ends: 191 [2020-12-09 20:34:48,699 INFO L226 Difference]: Without dead ends: 184 [2020-12-09 20:34:48,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-12-09 20:34:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-12-09 20:34:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 152. [2020-12-09 20:34:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-09 20:34:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2020-12-09 20:34:48,708 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2020-12-09 20:34:48,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:34:48,708 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2020-12-09 20:34:48,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 20:34:48,708 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2020-12-09 20:34:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 20:34:48,708 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:34:48,708 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] [2020-12-09 20:34:48,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-09 20:34:48,709 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]=== [2020-12-09 20:34:48,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:34:48,709 INFO L82 PathProgramCache]: Analyzing trace with hash -410271159, now seen corresponding path program 1 times [2020-12-09 20:34:48,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:34:48,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415496459] [2020-12-09 20:34:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:34:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 20:34:48,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 20:34:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 20:34:48,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 20:34:48,759 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 20:34:48,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 20:34:48,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-09 20:34:48,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:34:48 BoogieIcfgContainer [2020-12-09 20:34:48,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:34:48,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:34:48,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:34:48,785 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:34:48,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:34:44" (3/4) ... [2020-12-09 20:34:48,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 20:34:48,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:34:48,789 INFO L168 Benchmark]: Toolchain (without parser) took 5257.35 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 85.6 MB in the beginning and 113.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:48,789 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:48,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.10 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 72.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:48,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 115.3 MB. Free memory was 72.2 MB in the beginning and 69.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:48,790 INFO L168 Benchmark]: Boogie Preprocessor took 26.09 ms. Allocated memory is still 115.3 MB. Free memory was 69.9 MB in the beginning and 68.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:48,791 INFO L168 Benchmark]: RCFGBuilder took 787.59 ms. Allocated memory is still 115.3 MB. Free memory was 67.9 MB in the beginning and 68.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:48,791 INFO L168 Benchmark]: TraceAbstraction took 4188.94 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 68.3 MB in the beginning and 113.2 MB in the end (delta: -44.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:34:48,791 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 172.0 MB. Free memory is still 113.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:34:48,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 75.5 MB. Free memory was 41.2 MB in the beginning and 41.2 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 209.10 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 72.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 115.3 MB. Free memory was 72.2 MB in the beginning and 69.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.09 ms. Allocated memory is still 115.3 MB. Free memory was 69.9 MB in the beginning and 68.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 787.59 ms. Allocated memory is still 115.3 MB. Free memory was 67.9 MB in the beginning and 68.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4188.94 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 68.3 MB in the beginning and 113.2 MB in the end (delta: -44.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.70 ms. Allocated memory is still 172.0 MB. Free memory is still 113.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] EXPR (int )(a >> 24U) - 128 [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] (int )(b >> 24U) - 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 28 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 20, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1670 SDtfs, 2124 SDslu, 3931 SDs, 0 SdLazy, 1131 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 730 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 19817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 4/6 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...