./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE --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 1a60f09c1f9e564dccf08ce0ae2d4c72332ab0a4d30e6cfac309798344abe7c5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/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-e943c26 [2021-10-24 10:25:23,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:25:23,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:25:23,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:25:23,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:25:23,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:25:23,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:25:23,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:25:23,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:25:23,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:25:23,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:25:23,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:25:23,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:25:23,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:25:23,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:25:23,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:25:23,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:25:23,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:25:23,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:25:23,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:25:23,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:25:23,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:25:23,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:25:23,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:25:23,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:25:23,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:25:23,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:25:23,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:25:23,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:25:23,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:25:23,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:25:23,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:25:23,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:25:23,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:25:23,846 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:25:23,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:25:23,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:25:23,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:25:23,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:25:23,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:25:23,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:25:23,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-24 10:25:23,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:25:23,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:25:23,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:25:23,898 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:25:23,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:25:23,899 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:25:23,899 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:25:23,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:25:23,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:25:23,900 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:25:23,901 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:25:23,901 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:25:23,901 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:25:23,902 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:25:23,902 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:25:23,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:25:23,903 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:25:23,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:25:23,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:25:23,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:25:23,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:25:23,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:25:23,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:25:23,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:25:23,906 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-24 10:25:23,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:25:23,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:25:23,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:25:23,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:25:23,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:25:23,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:25:23,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:23,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:25:23,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:25:23,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:25:23,910 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:25:23,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:25:23,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:25:23,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:25:23,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:25:23,911 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_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a60f09c1f9e564dccf08ce0ae2d4c72332ab0a4d30e6cfac309798344abe7c5 [2021-10-24 10:25:24,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:25:24,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:25:24,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:25:24,288 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:25:24,289 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:25:24,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2021-10-24 10:25:24,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/data/4df897c70/dd0d4b993bc9490db7a201171a52d818/FLAG19d4b55f4 [2021-10-24 10:25:25,038 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:25:25,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2021-10-24 10:25:25,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/data/4df897c70/dd0d4b993bc9490db7a201171a52d818/FLAG19d4b55f4 [2021-10-24 10:25:25,351 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/data/4df897c70/dd0d4b993bc9490db7a201171a52d818 [2021-10-24 10:25:25,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:25:25,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:25:25,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:25,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:25:25,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:25:25,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a46f2ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25, skipping insertion in model container [2021-10-24 10:25:25,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:25:25,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:25:25,625 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_18d1ae18-8407-4cb6-bfb3-17106974cca8/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[424,437] [2021-10-24 10:25:25,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:25,711 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:25:25,725 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_18d1ae18-8407-4cb6-bfb3-17106974cca8/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[424,437] [2021-10-24 10:25:25,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:25:25,844 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:25:25,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25 WrapperNode [2021-10-24 10:25:25,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:25:25,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:25,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:25:25,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:25:25,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:25:25,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:25:25,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:25:25,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:25:25,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:25,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:26,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:25:26,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:25:26,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:25:26,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:25:26,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (1/1) ... [2021-10-24 10:25:26,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:25:26,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:25:26,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:25:26,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:25:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:25:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:25:26,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:25:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:25:27,554 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:25:27,555 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-24 10:25:27,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27 BoogieIcfgContainer [2021-10-24 10:25:27,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:25:27,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:25:27,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:25:27,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:25:27,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:25:25" (1/3) ... [2021-10-24 10:25:27,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605d23f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:27, skipping insertion in model container [2021-10-24 10:25:27,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:25:25" (2/3) ... [2021-10-24 10:25:27,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605d23f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:25:27, skipping insertion in model container [2021-10-24 10:25:27,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27" (3/3) ... [2021-10-24 10:25:27,574 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2021-10-24 10:25:27,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:25:27,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-24 10:25:27,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:25:27,662 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, mAutomataTypeConcurrency=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 [2021-10-24 10:25:27,663 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-24 10:25:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 77 states have (on average 1.8571428571428572) internal successors, (143), 113 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) [2021-10-24 10:25:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:25:27,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:27,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:25:27,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:27,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:27,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1695465357, now seen corresponding path program 1 times [2021-10-24 10:25:27,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:27,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830984656] [2021-10-24 10:25:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:27,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:27,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:27,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830984656] [2021-10-24 10:25:27,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830984656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:27,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:27,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:27,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594240652] [2021-10-24 10:25:27,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:25:27,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:25:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:25:27,939 INFO L87 Difference]: Start difference. First operand has 114 states, 77 states have (on average 1.8571428571428572) internal successors, (143), 113 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) 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) [2021-10-24 10:25:27,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:27,973 INFO L93 Difference]: Finished difference Result 209 states and 261 transitions. [2021-10-24 10:25:27,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:25:27,975 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 [2021-10-24 10:25:27,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:27,988 INFO L225 Difference]: With dead ends: 209 [2021-10-24 10:25:27,988 INFO L226 Difference]: Without dead ends: 106 [2021-10-24 10:25:27,992 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 [2021-10-24 10:25:28,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-24 10:25:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-24 10:25:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 72 states have (on average 1.7222222222222223) internal successors, (124), 105 states have internal predecessors, (124), 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) [2021-10-24 10:25:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 124 transitions. [2021-10-24 10:25:28,045 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 124 transitions. Word has length 6 [2021-10-24 10:25:28,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,045 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 124 transitions. [2021-10-24 10:25:28,046 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) [2021-10-24 10:25:28,046 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 124 transitions. [2021-10-24 10:25:28,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:25:28,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,047 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:25:28,048 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:28,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1694117588, now seen corresponding path program 1 times [2021-10-24 10:25:28,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047328102] [2021-10-24 10:25:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047328102] [2021-10-24 10:25:28,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047328102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:25:28,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041574973] [2021-10-24 10:25:28,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:25:28,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:25:28,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,147 INFO L87 Difference]: Start difference. First operand 106 states and 124 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) [2021-10-24 10:25:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,377 INFO L93 Difference]: Finished difference Result 209 states and 242 transitions. [2021-10-24 10:25:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:28,379 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 [2021-10-24 10:25:28,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,383 INFO L225 Difference]: With dead ends: 209 [2021-10-24 10:25:28,383 INFO L226 Difference]: Without dead ends: 121 [2021-10-24 10:25:28,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-24 10:25:28,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2021-10-24 10:25:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 85 states have (on average 1.6235294117647059) internal successors, (138), 118 states have internal predecessors, (138), 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) [2021-10-24 10:25:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2021-10-24 10:25:28,401 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 6 [2021-10-24 10:25:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,401 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2021-10-24 10:25:28,401 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) [2021-10-24 10:25:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2021-10-24 10:25:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:25:28,403 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,403 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:25:28,404 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,405 INFO L82 PathProgramCache]: Analyzing trace with hash -771439740, now seen corresponding path program 1 times [2021-10-24 10:25:28,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659357221] [2021-10-24 10:25:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659357221] [2021-10-24 10:25:28,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659357221] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538634164] [2021-10-24 10:25:28,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:28,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:28,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:28,466 INFO L87 Difference]: Start difference. First operand 119 states and 138 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) [2021-10-24 10:25:28,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,600 INFO L93 Difference]: Finished difference Result 164 states and 187 transitions. [2021-10-24 10:25:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:28,601 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 [2021-10-24 10:25:28,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,603 INFO L225 Difference]: With dead ends: 164 [2021-10-24 10:25:28,604 INFO L226 Difference]: Without dead ends: 157 [2021-10-24 10:25:28,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:28,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-24 10:25:28,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 120. [2021-10-24 10:25:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 119 states have internal predecessors, (140), 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) [2021-10-24 10:25:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2021-10-24 10:25:28,621 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 8 [2021-10-24 10:25:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,621 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2021-10-24 10:25:28,621 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) [2021-10-24 10:25:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2021-10-24 10:25:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 10:25:28,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,623 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:25:28,624 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:28,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1855171974, now seen corresponding path program 1 times [2021-10-24 10:25:28,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118857047] [2021-10-24 10:25:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118857047] [2021-10-24 10:25:28,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118857047] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25847370] [2021-10-24 10:25:28,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:25:28,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:25:28,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,670 INFO L87 Difference]: Start difference. First operand 120 states and 140 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) [2021-10-24 10:25:28,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,770 INFO L93 Difference]: Finished difference Result 155 states and 176 transitions. [2021-10-24 10:25:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:28,771 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 [2021-10-24 10:25:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,773 INFO L225 Difference]: With dead ends: 155 [2021-10-24 10:25:28,773 INFO L226 Difference]: Without dead ends: 149 [2021-10-24 10:25:28,774 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-24 10:25:28,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 115. [2021-10-24 10:25:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 90 states have (on average 1.511111111111111) internal successors, (136), 114 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) [2021-10-24 10:25:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2021-10-24 10:25:28,787 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 9 [2021-10-24 10:25:28,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,788 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2021-10-24 10:25:28,788 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) [2021-10-24 10:25:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2021-10-24 10:25:28,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 10:25:28,789 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,789 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:25:28,790 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1039607207, now seen corresponding path program 1 times [2021-10-24 10:25:28,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547589387] [2021-10-24 10:25:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:28,858 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:28,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547589387] [2021-10-24 10:25:28,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547589387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:28,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:28,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:28,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099127231] [2021-10-24 10:25:28,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:25:28,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:28,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:25:28,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,862 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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) [2021-10-24 10:25:28,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:28,910 INFO L93 Difference]: Finished difference Result 194 states and 228 transitions. [2021-10-24 10:25:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:25:28,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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 [2021-10-24 10:25:28,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:28,912 INFO L225 Difference]: With dead ends: 194 [2021-10-24 10:25:28,913 INFO L226 Difference]: Without dead ends: 81 [2021-10-24 10:25:28,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:25:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-24 10:25:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2021-10-24 10:25:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 80 states have internal predecessors, (94), 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) [2021-10-24 10:25:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2021-10-24 10:25:28,922 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 9 [2021-10-24 10:25:28,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:28,923 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2021-10-24 10:25:28,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 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) [2021-10-24 10:25:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2021-10-24 10:25:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:25:28,924 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:28,924 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:28,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:25:28,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1917698937, now seen corresponding path program 1 times [2021-10-24 10:25:28,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:28,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001690557] [2021-10-24 10:25:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:28,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001690557] [2021-10-24 10:25:29,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001690557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:25:29,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155701445] [2021-10-24 10:25:29,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:25:29,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:25:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:25:29,111 INFO L87 Difference]: Start difference. First operand 81 states and 94 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) [2021-10-24 10:25:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,215 INFO L93 Difference]: Finished difference Result 163 states and 182 transitions. [2021-10-24 10:25:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:25:29,216 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 [2021-10-24 10:25:29,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,218 INFO L225 Difference]: With dead ends: 163 [2021-10-24 10:25:29,218 INFO L226 Difference]: Without dead ends: 133 [2021-10-24 10:25:29,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:25:29,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-24 10:25:29,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 81. [2021-10-24 10:25:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.5333333333333334) internal successors, (92), 80 states have internal predecessors, (92), 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) [2021-10-24 10:25:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2021-10-24 10:25:29,235 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 10 [2021-10-24 10:25:29,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,235 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2021-10-24 10:25:29,236 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) [2021-10-24 10:25:29,236 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2021-10-24 10:25:29,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:25:29,238 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,238 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:25:29,238 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1926705618, now seen corresponding path program 1 times [2021-10-24 10:25:29,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895738643] [2021-10-24 10:25:29,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895738643] [2021-10-24 10:25:29,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895738643] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:29,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114030633] [2021-10-24 10:25:29,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:29,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:29,343 INFO L87 Difference]: Start difference. First operand 81 states and 92 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) [2021-10-24 10:25:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,438 INFO L93 Difference]: Finished difference Result 119 states and 133 transitions. [2021-10-24 10:25:29,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:29,439 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 [2021-10-24 10:25:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,440 INFO L225 Difference]: With dead ends: 119 [2021-10-24 10:25:29,440 INFO L226 Difference]: Without dead ends: 117 [2021-10-24 10:25:29,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-24 10:25:29,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 84. [2021-10-24 10:25:29,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 64 states have (on average 1.5) internal successors, (96), 83 states have internal predecessors, (96), 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) [2021-10-24 10:25:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2021-10-24 10:25:29,459 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 10 [2021-10-24 10:25:29,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,460 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2021-10-24 10:25:29,460 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) [2021-10-24 10:25:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2021-10-24 10:25:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:25:29,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,467 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:25:29,471 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:29,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1731762740, now seen corresponding path program 1 times [2021-10-24 10:25:29,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475634877] [2021-10-24 10:25:29,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:25:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:25:29,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:25:29,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475634877] [2021-10-24 10:25:29,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475634877] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:25:29,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:25:29,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:25:29,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798354117] [2021-10-24 10:25:29,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:25:29,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:25:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:25:29,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:25:29,553 INFO L87 Difference]: Start difference. First operand 84 states and 96 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) [2021-10-24 10:25:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:25:29,658 INFO L93 Difference]: Finished difference Result 122 states and 136 transitions. [2021-10-24 10:25:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:25:29,659 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 [2021-10-24 10:25:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:25:29,660 INFO L225 Difference]: With dead ends: 122 [2021-10-24 10:25:29,660 INFO L226 Difference]: Without dead ends: 119 [2021-10-24 10:25:29,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:25:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-24 10:25:29,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 88. [2021-10-24 10:25:29,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 69 states have (on average 1.463768115942029) internal successors, (101), 87 states have internal predecessors, (101), 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) [2021-10-24 10:25:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2021-10-24 10:25:29,682 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 10 [2021-10-24 10:25:29,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:25:29,682 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2021-10-24 10:25:29,683 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) [2021-10-24 10:25:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2021-10-24 10:25:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:25:29,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:25:29,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:25:29,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:25:29,687 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-24 10:25:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:25:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -2142943898, now seen corresponding path program 1 times [2021-10-24 10:25:29,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:25:29,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552293581] [2021-10-24 10:25:29,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:25:29,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:25:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:25:29,727 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:25:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:25:29,787 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:25:29,787 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:25:29,789 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,795 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,797 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,798 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,805 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,817 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-24 10:25:29,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:25:29,830 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:25:29,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:25:29 BoogieIcfgContainer [2021-10-24 10:25:29,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:25:29,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:25:29,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:25:29,884 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:25:29,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:25:27" (3/4) ... [2021-10-24 10:25:29,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:25:29,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:25:29,896 INFO L168 Benchmark]: Toolchain (without parser) took 4535.69 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 74.5 MB in the beginning and 92.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:29,896 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 107.0 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:29,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.52 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 77.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:29,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.75 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 75.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:29,899 INFO L168 Benchmark]: Boogie Preprocessor took 47.41 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 73.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:29,900 INFO L168 Benchmark]: RCFGBuilder took 1557.42 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 73.5 MB in the beginning and 88.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:25:29,901 INFO L168 Benchmark]: TraceAbstraction took 2319.89 ms. Allocated memory is still 130.0 MB. Free memory was 88.0 MB in the beginning and 92.9 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:29,901 INFO L168 Benchmark]: Witness Printer took 7.92 ms. Allocated memory is still 130.0 MB. Free memory is still 92.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:25:29,906 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 107.0 MB. Free memory is still 61.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 481.52 ms. Allocated memory is still 107.0 MB. Free memory was 74.5 MB in the beginning and 77.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.75 ms. Allocated memory is still 107.0 MB. Free memory was 77.9 MB in the beginning and 75.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.41 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 73.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1557.42 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 73.5 MB in the beginning and 88.1 MB in the end (delta: -14.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2319.89 ms. Allocated memory is still 130.0 MB. Free memory was 88.0 MB in the beginning and 92.9 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.92 ms. Allocated memory is still 130.0 MB. Free memory is still 92.9 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: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: 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, 114 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 2174.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 29.0ms, AutomataDifference: 928.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 793 SDtfs, 669 SDslu, 549 SDs, 0 SdLazy, 308 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 466.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 112.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=3, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 139.6ms AutomataMinimizationTime, 8 MinimizatonAttempts, 189 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.9ms SsaConstructionTime, 207.0ms SatisfiabilityAnalysisTime, 487.5ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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 [2021-10-24 10:25:29,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d1ae18-8407-4cb6-bfb3-17106974cca8/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...