./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs --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 9c532f6b804ad7a925ea1538a844c05d7db150e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/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 0.2.1-dev-5709675 [2021-10-16 02:13:21,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:13:21,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:13:21,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:13:21,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:13:21,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:13:21,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:13:21,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:13:21,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:13:21,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:13:21,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:13:21,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:13:21,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:13:21,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:13:21,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:13:21,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:13:21,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:13:21,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:13:21,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:13:21,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:13:21,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:13:21,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:13:21,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:13:21,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:13:21,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:13:21,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:13:21,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:13:21,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:13:21,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:13:21,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:13:21,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:13:21,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:13:21,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:13:21,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:13:21,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:13:21,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:13:21,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:13:21,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:13:21,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:13:21,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:13:21,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:13:21,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 02:13:21,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:13:21,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:13:21,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:13:21,895 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:13:21,895 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:13:21,896 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:13:21,896 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:13:21,896 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:13:21,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:13:21,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:13:21,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:13:21,897 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:13:21,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:13:21,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:13:21,898 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:13:21,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:13:21,899 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:13:21,900 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:13:21,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:13:21,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:13:21,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:13:21,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:13:21,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:13:21,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:13:21,902 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 02:13:21,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:13:21,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:13:21,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:13:21,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:13:21,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:13:21,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:13:21,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:21,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:13:21,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:13:21,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:13:21,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:13:21,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:13:21,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:13:21,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:13:21,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:13:21,906 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_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c532f6b804ad7a925ea1538a844c05d7db150e0 [2021-10-16 02:13:22,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:13:22,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:13:22,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:13:22,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:13:22,220 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:13:22,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-10-16 02:13:22,299 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/data/caa00de7f/359f9665c17e4035ae6a1ccef236edf7/FLAG1c2a57604 [2021-10-16 02:13:22,876 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:13:22,877 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2021-10-16 02:13:22,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/data/caa00de7f/359f9665c17e4035ae6a1ccef236edf7/FLAG1c2a57604 [2021-10-16 02:13:23,189 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/data/caa00de7f/359f9665c17e4035ae6a1ccef236edf7 [2021-10-16 02:13:23,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:13:23,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:13:23,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:23,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:13:23,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:13:23,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6255e640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23, skipping insertion in model container [2021-10-16 02:13:23,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:13:23,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:13:23,427 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[450,463] [2021-10-16 02:13:23,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:23,509 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:13:23,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[450,463] [2021-10-16 02:13:23,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:13:23,571 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:13:23,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23 WrapperNode [2021-10-16 02:13:23,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:13:23,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:23,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:13:23,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:13:23,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:13:23,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:13:23,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:13:23,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:13:23,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:13:23,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:13:23,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:13:23,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:13:23,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (1/1) ... [2021-10-16 02:13:23,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:13:23,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:13:23,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:13:23,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:13:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:13:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:13:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:13:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:13:24,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:13:24,626 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-16 02:13:24,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:24 BoogieIcfgContainer [2021-10-16 02:13:24,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:13:24,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:13:24,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:13:24,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:13:24,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:13:23" (1/3) ... [2021-10-16 02:13:24,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da4876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:24, skipping insertion in model container [2021-10-16 02:13:24,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:13:23" (2/3) ... [2021-10-16 02:13:24,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da4876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:13:24, skipping insertion in model container [2021-10-16 02:13:24,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:24" (3/3) ... [2021-10-16 02:13:24,639 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2021-10-16 02:13:24,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:13:24,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2021-10-16 02:13:24,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:13:24,699 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:13:24,700 INFO L340 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2021-10-16 02:13:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 81 states have (on average 1.8641975308641976) internal successors, (151), 119 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:13:24,737 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:24,738 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:13:24,738 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:24,743 INFO L82 PathProgramCache]: Analyzing trace with hash -108231699, now seen corresponding path program 1 times [2021-10-16 02:13:24,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:24,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115749447] [2021-10-16 02:13:24,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:24,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:24,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:24,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115749447] [2021-10-16 02:13:24,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115749447] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:24,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:24,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:24,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219631070] [2021-10-16 02:13:24,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:13:24,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:24,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:13:24,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:13:24,919 INFO L87 Difference]: Start difference. First operand has 120 states, 81 states have (on average 1.8641975308641976) internal successors, (151), 119 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:24,945 INFO L93 Difference]: Finished difference Result 219 states and 277 transitions. [2021-10-16 02:13:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:13:24,947 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 02:13:24,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:24,957 INFO L225 Difference]: With dead ends: 219 [2021-10-16 02:13:24,957 INFO L226 Difference]: Without dead ends: 114 [2021-10-16 02:13:24,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:13:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-16 02:13:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-16 02:13:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.7) internal successors, (136), 113 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 136 transitions. [2021-10-16 02:13:25,003 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 136 transitions. Word has length 6 [2021-10-16 02:13:25,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:25,003 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 136 transitions. [2021-10-16 02:13:25,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,004 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 136 transitions. [2021-10-16 02:13:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:13:25,005 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:25,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:13:25,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:13:25,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:25,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:25,007 INFO L82 PathProgramCache]: Analyzing trace with hash -109518925, now seen corresponding path program 1 times [2021-10-16 02:13:25,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:25,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002482304] [2021-10-16 02:13:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:25,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:25,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:25,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002482304] [2021-10-16 02:13:25,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002482304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:25,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:25,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 02:13:25,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343624463] [2021-10-16 02:13:25,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:13:25,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:13:25,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:13:25,079 INFO L87 Difference]: Start difference. First operand 114 states and 136 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:25,234 INFO L93 Difference]: Finished difference Result 225 states and 266 transitions. [2021-10-16 02:13:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:13:25,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 02:13:25,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:25,239 INFO L225 Difference]: With dead ends: 225 [2021-10-16 02:13:25,239 INFO L226 Difference]: Without dead ends: 127 [2021-10-16 02:13:25,240 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:13:25,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-16 02:13:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-10-16 02:13:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 92 states have (on average 1.6195652173913044) internal successors, (149), 125 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 149 transitions. [2021-10-16 02:13:25,254 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 149 transitions. Word has length 6 [2021-10-16 02:13:25,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:25,254 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 149 transitions. [2021-10-16 02:13:25,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 149 transitions. [2021-10-16 02:13:25,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:13:25,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:25,256 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:25,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:13:25,256 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:25,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:25,257 INFO L82 PathProgramCache]: Analyzing trace with hash -706794882, now seen corresponding path program 1 times [2021-10-16 02:13:25,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:25,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388588465] [2021-10-16 02:13:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:25,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:25,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:25,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388588465] [2021-10-16 02:13:25,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388588465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:25,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:25,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:25,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165278547] [2021-10-16 02:13:25,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:25,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:25,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:25,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:25,321 INFO L87 Difference]: Start difference. First operand 126 states and 149 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:25,465 INFO L93 Difference]: Finished difference Result 187 states and 218 transitions. [2021-10-16 02:13:25,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:25,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-16 02:13:25,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:25,470 INFO L225 Difference]: With dead ends: 187 [2021-10-16 02:13:25,473 INFO L226 Difference]: Without dead ends: 180 [2021-10-16 02:13:25,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:25,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-16 02:13:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 127. [2021-10-16 02:13:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 98 states have (on average 1.5408163265306123) internal successors, (151), 126 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 151 transitions. [2021-10-16 02:13:25,520 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 151 transitions. Word has length 8 [2021-10-16 02:13:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:25,521 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 151 transitions. [2021-10-16 02:13:25,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,522 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 151 transitions. [2021-10-16 02:13:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:13:25,523 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:25,523 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:25,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 02:13:25,524 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:25,527 INFO L82 PathProgramCache]: Analyzing trace with hash -435804728, now seen corresponding path program 1 times [2021-10-16 02:13:25,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:25,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34415273] [2021-10-16 02:13:25,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:25,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:25,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:25,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34415273] [2021-10-16 02:13:25,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34415273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:25,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:25,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:25,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098175909] [2021-10-16 02:13:25,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:13:25,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:13:25,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:13:25,599 INFO L87 Difference]: Start difference. First operand 127 states and 151 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:25,686 INFO L93 Difference]: Finished difference Result 179 states and 207 transitions. [2021-10-16 02:13:25,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:13:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 02:13:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:25,690 INFO L225 Difference]: With dead ends: 179 [2021-10-16 02:13:25,690 INFO L226 Difference]: Without dead ends: 174 [2021-10-16 02:13:25,693 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:13:25,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-16 02:13:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 119. [2021-10-16 02:13:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.5212765957446808) internal successors, (143), 118 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2021-10-16 02:13:25,707 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 9 [2021-10-16 02:13:25,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:25,707 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2021-10-16 02:13:25,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2021-10-16 02:13:25,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:13:25,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:25,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:25,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 02:13:25,709 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:25,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1447287703, now seen corresponding path program 1 times [2021-10-16 02:13:25,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:25,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356459480] [2021-10-16 02:13:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:25,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:25,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:25,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356459480] [2021-10-16 02:13:25,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356459480] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:25,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:25,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 02:13:25,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844776491] [2021-10-16 02:13:25,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:25,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:25,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:25,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:25,829 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:25,951 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-10-16 02:13:25,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:13:25,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:13:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:25,953 INFO L225 Difference]: With dead ends: 242 [2021-10-16 02:13:25,953 INFO L226 Difference]: Without dead ends: 190 [2021-10-16 02:13:25,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:13:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-16 02:13:25,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 153. [2021-10-16 02:13:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 128 states have (on average 1.5078125) internal successors, (193), 152 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 193 transitions. [2021-10-16 02:13:25,985 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 193 transitions. Word has length 10 [2021-10-16 02:13:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:25,986 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 193 transitions. [2021-10-16 02:13:25,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 193 transitions. [2021-10-16 02:13:25,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:13:25,987 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:25,988 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:25,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 02:13:25,988 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:25,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:25,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1453701575, now seen corresponding path program 1 times [2021-10-16 02:13:25,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:25,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812589923] [2021-10-16 02:13:25,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:25,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,023 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:26,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812589923] [2021-10-16 02:13:26,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812589923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:26,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:26,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:26,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839970341] [2021-10-16 02:13:26,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:26,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:26,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:26,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:26,026 INFO L87 Difference]: Start difference. First operand 153 states and 193 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:26,115 INFO L93 Difference]: Finished difference Result 233 states and 292 transitions. [2021-10-16 02:13:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:26,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:13:26,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:26,117 INFO L225 Difference]: With dead ends: 233 [2021-10-16 02:13:26,118 INFO L226 Difference]: Without dead ends: 231 [2021-10-16 02:13:26,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-16 02:13:26,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 160. [2021-10-16 02:13:26,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 159 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 201 transitions. [2021-10-16 02:13:26,130 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 201 transitions. Word has length 10 [2021-10-16 02:13:26,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:26,131 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 201 transitions. [2021-10-16 02:13:26,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 201 transitions. [2021-10-16 02:13:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:13:26,132 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:26,132 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:26,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 02:13:26,133 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:26,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:26,133 INFO L82 PathProgramCache]: Analyzing trace with hash 262403526, now seen corresponding path program 1 times [2021-10-16 02:13:26,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:26,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938773468] [2021-10-16 02:13:26,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:26,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,173 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:26,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938773468] [2021-10-16 02:13:26,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938773468] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:26,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:26,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:26,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191094682] [2021-10-16 02:13:26,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:26,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:26,176 INFO L87 Difference]: Start difference. First operand 160 states and 201 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:26,252 INFO L93 Difference]: Finished difference Result 233 states and 287 transitions. [2021-10-16 02:13:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:26,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:13:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:26,254 INFO L225 Difference]: With dead ends: 233 [2021-10-16 02:13:26,254 INFO L226 Difference]: Without dead ends: 231 [2021-10-16 02:13:26,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:26,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-16 02:13:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 162. [2021-10-16 02:13:26,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 139 states have (on average 1.460431654676259) internal successors, (203), 161 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2021-10-16 02:13:26,272 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 10 [2021-10-16 02:13:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:26,272 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2021-10-16 02:13:26,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2021-10-16 02:13:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:13:26,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:26,275 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:26,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 02:13:26,277 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:26,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:26,278 INFO L82 PathProgramCache]: Analyzing trace with hash -284427539, now seen corresponding path program 1 times [2021-10-16 02:13:26,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:26,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142721884] [2021-10-16 02:13:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:26,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:26,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142721884] [2021-10-16 02:13:26,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142721884] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:26,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:26,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:26,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035423966] [2021-10-16 02:13:26,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:26,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:26,332 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:26,424 INFO L93 Difference]: Finished difference Result 377 states and 466 transitions. [2021-10-16 02:13:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:26,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 02:13:26,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:26,426 INFO L225 Difference]: With dead ends: 377 [2021-10-16 02:13:26,427 INFO L226 Difference]: Without dead ends: 242 [2021-10-16 02:13:26,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:26,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-16 02:13:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 167. [2021-10-16 02:13:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 144 states have (on average 1.4513888888888888) internal successors, (209), 166 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2021-10-16 02:13:26,441 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 11 [2021-10-16 02:13:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:26,441 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2021-10-16 02:13:26,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2021-10-16 02:13:26,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 02:13:26,446 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:26,446 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:26,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 02:13:26,446 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:26,447 INFO L82 PathProgramCache]: Analyzing trace with hash -255387615, now seen corresponding path program 1 times [2021-10-16 02:13:26,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:26,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894995066] [2021-10-16 02:13:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:26,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:26,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894995066] [2021-10-16 02:13:26,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894995066] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:26,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:26,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:13:26,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163663298] [2021-10-16 02:13:26,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:26,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:26,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:26,508 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:26,583 INFO L93 Difference]: Finished difference Result 249 states and 305 transitions. [2021-10-16 02:13:26,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:26,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-16 02:13:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:26,591 INFO L225 Difference]: With dead ends: 249 [2021-10-16 02:13:26,591 INFO L226 Difference]: Without dead ends: 247 [2021-10-16 02:13:26,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-16 02:13:26,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 172. [2021-10-16 02:13:26,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 150 states have (on average 1.42) internal successors, (213), 171 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2021-10-16 02:13:26,610 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 12 [2021-10-16 02:13:26,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:26,610 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2021-10-16 02:13:26,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2021-10-16 02:13:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 02:13:26,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:26,614 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:26,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 02:13:26,615 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:26,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1845971037, now seen corresponding path program 1 times [2021-10-16 02:13:26,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:26,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447875477] [2021-10-16 02:13:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:26,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:26,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447875477] [2021-10-16 02:13:26,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447875477] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:13:26,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443998850] [2021-10-16 02:13:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:26,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:13:26,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:13:26,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:13:26,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:13:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:26,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:13:26,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:13:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:13:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:26,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443998850] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:26,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:13:26,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2021-10-16 02:13:26,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223720703] [2021-10-16 02:13:26,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:26,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:26,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:26,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:26,901 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:26,986 INFO L93 Difference]: Finished difference Result 337 states and 405 transitions. [2021-10-16 02:13:26,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:13:26,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-16 02:13:26,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:26,989 INFO L225 Difference]: With dead ends: 337 [2021-10-16 02:13:26,989 INFO L226 Difference]: Without dead ends: 334 [2021-10-16 02:13:26,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:26,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-16 02:13:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 155. [2021-10-16 02:13:27,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.411764705882353) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2021-10-16 02:13:27,002 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 12 [2021-10-16 02:13:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:27,002 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2021-10-16 02:13:27,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2021-10-16 02:13:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:13:27,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:27,003 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:27,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:13:27,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:13:27,225 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:27,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2018519923, now seen corresponding path program 1 times [2021-10-16 02:13:27,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:27,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880616814] [2021-10-16 02:13:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:27,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:27,254 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:27,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880616814] [2021-10-16 02:13:27,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880616814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:27,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:27,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:13:27,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860017544] [2021-10-16 02:13:27,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:13:27,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:13:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:27,256 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:27,334 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2021-10-16 02:13:27,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:27,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-16 02:13:27,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:27,337 INFO L225 Difference]: With dead ends: 298 [2021-10-16 02:13:27,337 INFO L226 Difference]: Without dead ends: 295 [2021-10-16 02:13:27,337 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:13:27,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-16 02:13:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 140. [2021-10-16 02:13:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.4193548387096775) internal successors, (176), 139 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 176 transitions. [2021-10-16 02:13:27,366 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 176 transitions. Word has length 13 [2021-10-16 02:13:27,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:27,366 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 176 transitions. [2021-10-16 02:13:27,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 176 transitions. [2021-10-16 02:13:27,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:13:27,367 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:27,367 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:27,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 02:13:27,374 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:27,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:27,376 INFO L82 PathProgramCache]: Analyzing trace with hash -609564838, now seen corresponding path program 1 times [2021-10-16 02:13:27,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:27,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064016731] [2021-10-16 02:13:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:27,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:27,506 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:27,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064016731] [2021-10-16 02:13:27,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064016731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:27,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:27,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 02:13:27,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773299662] [2021-10-16 02:13:27,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:27,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:27,509 INFO L87 Difference]: Start difference. First operand 140 states and 176 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:27,620 INFO L93 Difference]: Finished difference Result 197 states and 225 transitions. [2021-10-16 02:13:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:13:27,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-16 02:13:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:27,622 INFO L225 Difference]: With dead ends: 197 [2021-10-16 02:13:27,622 INFO L226 Difference]: Without dead ends: 173 [2021-10-16 02:13:27,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-10-16 02:13:27,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 140. [2021-10-16 02:13:27,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 139 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2021-10-16 02:13:27,633 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 14 [2021-10-16 02:13:27,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:27,633 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2021-10-16 02:13:27,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2021-10-16 02:13:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:13:27,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:27,634 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:27,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 02:13:27,635 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:27,636 INFO L82 PathProgramCache]: Analyzing trace with hash 254756036, now seen corresponding path program 1 times [2021-10-16 02:13:27,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:27,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014706582] [2021-10-16 02:13:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:27,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:27,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:27,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014706582] [2021-10-16 02:13:27,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014706582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:27,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:27,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 02:13:27,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636248506] [2021-10-16 02:13:27,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:27,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:27,766 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:27,852 INFO L93 Difference]: Finished difference Result 173 states and 200 transitions. [2021-10-16 02:13:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:13:27,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:13:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:27,854 INFO L225 Difference]: With dead ends: 173 [2021-10-16 02:13:27,854 INFO L226 Difference]: Without dead ends: 172 [2021-10-16 02:13:27,855 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.3ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:13:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-16 02:13:27,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 140. [2021-10-16 02:13:27,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.403225806451613) internal successors, (174), 139 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 174 transitions. [2021-10-16 02:13:27,865 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 174 transitions. Word has length 16 [2021-10-16 02:13:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:27,867 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 174 transitions. [2021-10-16 02:13:27,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 174 transitions. [2021-10-16 02:13:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:13:27,867 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:27,868 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:27,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 02:13:27,868 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1298293722, now seen corresponding path program 1 times [2021-10-16 02:13:27,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:27,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015215881] [2021-10-16 02:13:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:27,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:27,989 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:27,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015215881] [2021-10-16 02:13:27,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015215881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:27,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:27,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 02:13:27,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902113781] [2021-10-16 02:13:27,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:27,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:27,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:27,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:27,992 INFO L87 Difference]: Start difference. First operand 140 states and 174 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:28,072 INFO L93 Difference]: Finished difference Result 165 states and 199 transitions. [2021-10-16 02:13:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:13:28,072 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 02:13:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:28,074 INFO L225 Difference]: With dead ends: 165 [2021-10-16 02:13:28,074 INFO L226 Difference]: Without dead ends: 164 [2021-10-16 02:13:28,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-10-16 02:13:28,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 144. [2021-10-16 02:13:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 128 states have (on average 1.390625) internal successors, (178), 143 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 178 transitions. [2021-10-16 02:13:28,085 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 178 transitions. Word has length 16 [2021-10-16 02:13:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:28,085 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 178 transitions. [2021-10-16 02:13:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 178 transitions. [2021-10-16 02:13:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:13:28,086 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:28,086 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:28,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 02:13:28,086 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:28,087 INFO L82 PathProgramCache]: Analyzing trace with hash 7423494, now seen corresponding path program 1 times [2021-10-16 02:13:28,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:28,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857776019] [2021-10-16 02:13:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:28,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:28,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:28,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:28,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857776019] [2021-10-16 02:13:28,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857776019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:28,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:28,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 02:13:28,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837758751] [2021-10-16 02:13:28,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:13:28,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:13:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:28,213 INFO L87 Difference]: Start difference. First operand 144 states and 178 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:28,276 INFO L93 Difference]: Finished difference Result 172 states and 199 transitions. [2021-10-16 02:13:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:13:28,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-16 02:13:28,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:28,278 INFO L225 Difference]: With dead ends: 172 [2021-10-16 02:13:28,278 INFO L226 Difference]: Without dead ends: 133 [2021-10-16 02:13:28,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:13:28,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-16 02:13:28,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 112. [2021-10-16 02:13:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 111 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2021-10-16 02:13:28,288 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 18 [2021-10-16 02:13:28,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:28,289 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2021-10-16 02:13:28,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2021-10-16 02:13:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:13:28,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:28,290 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:28,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 02:13:28,290 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:28,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:28,291 INFO L82 PathProgramCache]: Analyzing trace with hash -2119739736, now seen corresponding path program 1 times [2021-10-16 02:13:28,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:28,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654795156] [2021-10-16 02:13:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:28,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:28,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:28,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654795156] [2021-10-16 02:13:28,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654795156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:28,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:28,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 02:13:28,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103683163] [2021-10-16 02:13:28,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:13:28,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:13:28,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:28,473 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:28,658 INFO L93 Difference]: Finished difference Result 302 states and 342 transitions. [2021-10-16 02:13:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-16 02:13:28,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-16 02:13:28,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:28,661 INFO L225 Difference]: With dead ends: 302 [2021-10-16 02:13:28,661 INFO L226 Difference]: Without dead ends: 277 [2021-10-16 02:13:28,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 85.5ms TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:13:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-16 02:13:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 120. [2021-10-16 02:13:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 119 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2021-10-16 02:13:28,672 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 18 [2021-10-16 02:13:28,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:28,672 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2021-10-16 02:13:28,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,672 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2021-10-16 02:13:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:13:28,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:28,673 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:28,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 02:13:28,673 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash 291355723, now seen corresponding path program 1 times [2021-10-16 02:13:28,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:28,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904878830] [2021-10-16 02:13:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:28,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:28,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:28,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904878830] [2021-10-16 02:13:28,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904878830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:28,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:28,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 02:13:28,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536554227] [2021-10-16 02:13:28,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:13:28,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:13:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:13:28,806 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:28,940 INFO L93 Difference]: Finished difference Result 272 states and 311 transitions. [2021-10-16 02:13:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:13:28,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-16 02:13:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:28,943 INFO L225 Difference]: With dead ends: 272 [2021-10-16 02:13:28,943 INFO L226 Difference]: Without dead ends: 271 [2021-10-16 02:13:28,944 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 55.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:13:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-16 02:13:28,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 132. [2021-10-16 02:13:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 131 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2021-10-16 02:13:28,955 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 18 [2021-10-16 02:13:28,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:28,956 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2021-10-16 02:13:28,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:28,956 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2021-10-16 02:13:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 02:13:28,957 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:28,957 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:28,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 02:13:28,957 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:28,957 INFO L82 PathProgramCache]: Analyzing trace with hash 823871063, now seen corresponding path program 1 times [2021-10-16 02:13:28,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:28,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846931479] [2021-10-16 02:13:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:28,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:29,073 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:29,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846931479] [2021-10-16 02:13:29,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846931479] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:29,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:29,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-16 02:13:29,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498476817] [2021-10-16 02:13:29,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:13:29,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:13:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:29,077 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:29,222 INFO L93 Difference]: Finished difference Result 295 states and 333 transitions. [2021-10-16 02:13:29,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:13:29,223 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-16 02:13:29,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:29,226 INFO L225 Difference]: With dead ends: 295 [2021-10-16 02:13:29,226 INFO L226 Difference]: Without dead ends: 270 [2021-10-16 02:13:29,227 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:13:29,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-16 02:13:29,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 138. [2021-10-16 02:13:29,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 137 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2021-10-16 02:13:29,242 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 20 [2021-10-16 02:13:29,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:29,243 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2021-10-16 02:13:29,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,243 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2021-10-16 02:13:29,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 02:13:29,244 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:29,244 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:29,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 02:13:29,244 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:29,245 INFO L82 PathProgramCache]: Analyzing trace with hash -844734990, now seen corresponding path program 1 times [2021-10-16 02:13:29,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:29,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217756603] [2021-10-16 02:13:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:29,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:29,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:29,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217756603] [2021-10-16 02:13:29,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217756603] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:29,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:29,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 02:13:29,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451830108] [2021-10-16 02:13:29,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:13:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:29,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:13:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:29,346 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:29,403 INFO L93 Difference]: Finished difference Result 159 states and 186 transitions. [2021-10-16 02:13:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:13:29,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-16 02:13:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:29,404 INFO L225 Difference]: With dead ends: 159 [2021-10-16 02:13:29,404 INFO L226 Difference]: Without dead ends: 134 [2021-10-16 02:13:29,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.5ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-16 02:13:29,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-16 02:13:29,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.353448275862069) internal successors, (157), 131 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2021-10-16 02:13:29,415 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 20 [2021-10-16 02:13:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:29,416 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2021-10-16 02:13:29,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2021-10-16 02:13:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 02:13:29,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:29,418 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:29,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 02:13:29,419 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:29,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:29,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1566360469, now seen corresponding path program 1 times [2021-10-16 02:13:29,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:29,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611087775] [2021-10-16 02:13:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:29,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:29,541 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:29,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611087775] [2021-10-16 02:13:29,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611087775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:29,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:29,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 02:13:29,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485064683] [2021-10-16 02:13:29,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:13:29,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:13:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:13:29,543 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:29,616 INFO L93 Difference]: Finished difference Result 181 states and 210 transitions. [2021-10-16 02:13:29,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:13:29,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-16 02:13:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:29,621 INFO L225 Difference]: With dead ends: 181 [2021-10-16 02:13:29,621 INFO L226 Difference]: Without dead ends: 180 [2021-10-16 02:13:29,621 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:13:29,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-16 02:13:29,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 132. [2021-10-16 02:13:29,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.353448275862069) internal successors, (157), 131 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2021-10-16 02:13:29,632 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 20 [2021-10-16 02:13:29,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:29,632 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2021-10-16 02:13:29,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:29,632 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2021-10-16 02:13:29,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 02:13:29,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:29,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:13:29,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-16 02:13:29,634 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:29,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:29,634 INFO L82 PathProgramCache]: Analyzing trace with hash -350283059, now seen corresponding path program 1 times [2021-10-16 02:13:29,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:29,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067732822] [2021-10-16 02:13:29,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:29,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:29,904 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:29,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067732822] [2021-10-16 02:13:29,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067732822] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:29,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:29,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-16 02:13:29,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706937044] [2021-10-16 02:13:29,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:13:29,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:29,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:13:29,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:13:29,906 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:31,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:31,009 INFO L93 Difference]: Finished difference Result 307 states and 338 transitions. [2021-10-16 02:13:31,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 02:13:31,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-16 02:13:31,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:31,011 INFO L225 Difference]: With dead ends: 307 [2021-10-16 02:13:31,011 INFO L226 Difference]: Without dead ends: 304 [2021-10-16 02:13:31,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 552.2ms TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2021-10-16 02:13:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-16 02:13:31,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 140. [2021-10-16 02:13:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 139 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2021-10-16 02:13:31,025 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 21 [2021-10-16 02:13:31,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:31,025 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2021-10-16 02:13:31,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:31,025 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2021-10-16 02:13:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:13:31,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:31,026 INFO L512 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] [2021-10-16 02:13:31,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-16 02:13:31,027 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:31,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:31,027 INFO L82 PathProgramCache]: Analyzing trace with hash 2026127348, now seen corresponding path program 1 times [2021-10-16 02:13:31,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:31,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42271687] [2021-10-16 02:13:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:31,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:31,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:31,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42271687] [2021-10-16 02:13:31,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42271687] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:31,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:31,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-16 02:13:31,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496241902] [2021-10-16 02:13:31,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:13:31,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:13:31,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:13:31,350 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:32,123 INFO L93 Difference]: Finished difference Result 248 states and 301 transitions. [2021-10-16 02:13:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-16 02:13:32,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-16 02:13:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:32,127 INFO L225 Difference]: With dead ends: 248 [2021-10-16 02:13:32,127 INFO L226 Difference]: Without dead ends: 238 [2021-10-16 02:13:32,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 403.1ms TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:13:32,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-10-16 02:13:32,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 133. [2021-10-16 02:13:32,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 132 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2021-10-16 02:13:32,140 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 22 [2021-10-16 02:13:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:32,140 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2021-10-16 02:13:32,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2021-10-16 02:13:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:13:32,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:32,141 INFO L512 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] [2021-10-16 02:13:32,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-16 02:13:32,142 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1995855615, now seen corresponding path program 1 times [2021-10-16 02:13:32,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:32,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975459312] [2021-10-16 02:13:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:32,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:13:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:13:32,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:13:32,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975459312] [2021-10-16 02:13:32,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975459312] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:13:32,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:13:32,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 02:13:32,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314049950] [2021-10-16 02:13:32,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:13:32,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:13:32,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:13:32,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:13:32,268 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:13:32,573 INFO L93 Difference]: Finished difference Result 255 states and 290 transitions. [2021-10-16 02:13:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:13:32,573 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-16 02:13:32,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:13:32,575 INFO L225 Difference]: With dead ends: 255 [2021-10-16 02:13:32,575 INFO L226 Difference]: Without dead ends: 254 [2021-10-16 02:13:32,576 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 141.9ms TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:13:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-16 02:13:32,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 139. [2021-10-16 02:13:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 129 states have (on average 1.302325581395349) internal successors, (168), 138 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2021-10-16 02:13:32,591 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 22 [2021-10-16 02:13:32,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:13:32,591 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2021-10-16 02:13:32,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:13:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2021-10-16 02:13:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:13:32,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:13:32,592 INFO L512 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] [2021-10-16 02:13:32,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-16 02:13:32,593 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-16 02:13:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:13:32,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1999742345, now seen corresponding path program 1 times [2021-10-16 02:13:32,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:13:32,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927581572] [2021-10-16 02:13:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:13:32,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:13:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:13:32,611 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:13:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:13:32,645 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:13:32,646 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:13:32,646 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,648 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,649 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,650 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,651 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,652 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,653 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,654 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,655 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,656 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-16 02:13:32,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-16 02:13:32,662 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:13:32,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:13:32 BoogieIcfgContainer [2021-10-16 02:13:32,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:13:32,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:13:32,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:13:32,697 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:13:32,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:13:24" (3/4) ... [2021-10-16 02:13:32,701 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:13:32,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:13:32,702 INFO L168 Benchmark]: Toolchain (without parser) took 9508.48 ms. Allocated memory was 107.0 MB in the beginning and 167.8 MB in the end (delta: 60.8 MB). Free memory was 77.4 MB in the beginning and 104.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,703 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 61.7 MB in the end (delta: 51.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:32,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.23 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 80.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 77.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,704 INFO L168 Benchmark]: Boogie Preprocessor took 65.10 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,705 INFO L168 Benchmark]: RCFGBuilder took 926.79 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 75.5 MB in the beginning and 107.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,705 INFO L168 Benchmark]: TraceAbstraction took 8066.26 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 107.1 MB in the beginning and 104.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:13:32,705 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 167.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:13:32,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 61.8 MB in the beginning and 61.7 MB in the end (delta: 51.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.23 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 80.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.71 ms. Allocated memory is still 107.0 MB. Free memory was 80.1 MB in the beginning and 77.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.10 ms. Allocated memory is still 107.0 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 926.79 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 75.5 MB in the beginning and 107.8 MB in the end (delta: -32.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8066.26 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 107.1 MB in the beginning and 104.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.99 ms. Allocated memory is still 167.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add1 ; [L226] unsigned int r_add2 ; [L227] unsigned int zero ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int __retres14 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L234] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L235] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] EXPR e + 128 [L70] res = m | ((unsigned int )(e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L236] b = base2flt(mb, eb) [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] EXPR (int )(a >> 24U) - 128 [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] (int )(b >> 24U) - 128 - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 7970.3ms, OverallIterations: 24, TraceHistogramMax: 2, EmptinessCheckTime: 44.5ms, AutomataDifference: 4290.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2998 SDtfs, 3859 SDslu, 6780 SDs, 0 SdLazy, 1993 SolverSat, 320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2066.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 1549.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=9, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 359.4ms AutomataMinimizationTime, 23 MinimizatonAttempts, 1738 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 67.8ms SsaConstructionTime, 478.6ms SatisfiabilityAnalysisTime, 2064.3ms InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 1484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 25 InterpolantComputations, 24 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 [2021-10-16 02:13:32,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e6b946-7f46-443a-9de4-8ba2c88bcfbb/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...