./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3b8bf9cef197469aec7ea347f740588dd59c933 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:16:59,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:16:59,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:16:59,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:16:59,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:16:59,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:16:59,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:16:59,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:16:59,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:16:59,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:16:59,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:16:59,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:16:59,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:16:59,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:16:59,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:16:59,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:16:59,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:16:59,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:16:59,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:16:59,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:16:59,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:16:59,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:16:59,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:16:59,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:16:59,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:16:59,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:16:59,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:16:59,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:16:59,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:16:59,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:16:59,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:16:59,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:16:59,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:16:59,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:16:59,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:16:59,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:16:59,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:16:59,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:16:59,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:16:59,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:16:59,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:16:59,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 03:16:59,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:16:59,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:16:59,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:16:59,628 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:16:59,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:16:59,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:16:59,629 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:16:59,629 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:16:59,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:16:59,630 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:16:59,630 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:16:59,636 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:16:59,637 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:16:59,637 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:16:59,637 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:16:59,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:16:59,638 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:16:59,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:16:59,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:16:59,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:16:59,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:16:59,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:16:59,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:16:59,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:16:59,641 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 03:16:59,641 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:16:59,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:16:59,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:16:59,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:16:59,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:16:59,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:16:59,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:16:59,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:16:59,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:16:59,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:16:59,644 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:16:59,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:16:59,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:16:59,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:16:59,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:16:59,646 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_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3b8bf9cef197469aec7ea347f740588dd59c933 [2021-10-16 03:16:59,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:16:59,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:16:59,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:16:59,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:16:59,991 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:16:59,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-10-16 03:17:00,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/data/6441b60ea/5aed6f2a56f84b6db3f684d87320bc12/FLAGa41f4b0f9 [2021-10-16 03:17:00,658 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:17:00,663 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2021-10-16 03:17:00,681 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/data/6441b60ea/5aed6f2a56f84b6db3f684d87320bc12/FLAGa41f4b0f9 [2021-10-16 03:17:01,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/data/6441b60ea/5aed6f2a56f84b6db3f684d87320bc12 [2021-10-16 03:17:01,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:17:01,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:17:01,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:17:01,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:17:01,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:17:01,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104b340c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01, skipping insertion in model container [2021-10-16 03:17:01,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:17:01,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:17:01,271 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_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2021-10-16 03:17:01,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:17:01,342 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:17:01,366 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_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[423,436] [2021-10-16 03:17:01,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:17:01,444 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:17:01,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01 WrapperNode [2021-10-16 03:17:01,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:17:01,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:17:01,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:17:01,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:17:01,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:17:01,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:17:01,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:17:01,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:17:01,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:17:01,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:17:01,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:17:01,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:17:01,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (1/1) ... [2021-10-16 03:17:01,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:17:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:17:01,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:17:01,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:17:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:17:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:17:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:17:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:17:02,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:17:02,379 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-16 03:17:02,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:17:02 BoogieIcfgContainer [2021-10-16 03:17:02,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:17:02,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:17:02,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:17:02,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:17:02,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:17:01" (1/3) ... [2021-10-16 03:17:02,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145ae669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:17:02, skipping insertion in model container [2021-10-16 03:17:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:17:01" (2/3) ... [2021-10-16 03:17:02,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@145ae669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:17:02, skipping insertion in model container [2021-10-16 03:17:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:17:02" (3/3) ... [2021-10-16 03:17:02,398 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2021-10-16 03:17:02,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:17:02,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-16 03:17:02,478 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:17:02,487 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:17:02,487 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-16 03:17:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 85 states have (on average 1.8705882352941177) internal successors, (159), 121 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:17:02,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:02,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:17:02,528 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)] === [2021-10-16 03:17:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:02,534 INFO L82 PathProgramCache]: Analyzing trace with hash 34921744, now seen corresponding path program 1 times [2021-10-16 03:17:02,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:02,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299668782] [2021-10-16 03:17:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:02,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:02,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:02,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299668782] [2021-10-16 03:17:02,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299668782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:02,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:02,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:17:02,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793614918] [2021-10-16 03:17:02,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:17:02,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:02,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:17:02,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:17:02,725 INFO L87 Difference]: Start difference. First operand has 122 states, 85 states have (on average 1.8705882352941177) internal successors, (159), 121 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:02,752 INFO L93 Difference]: Finished difference Result 225 states and 293 transitions. [2021-10-16 03:17:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:17:02,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 03:17:02,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:02,763 INFO L225 Difference]: With dead ends: 225 [2021-10-16 03:17:02,764 INFO L226 Difference]: Without dead ends: 118 [2021-10-16 03:17:02,767 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:17:02,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-16 03:17:02,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-16 03:17:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 117 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2021-10-16 03:17:02,809 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 6 [2021-10-16 03:17:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:02,810 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2021-10-16 03:17:02,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2021-10-16 03:17:02,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 03:17:02,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:02,811 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 03:17:02,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:17:02,812 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)] === [2021-10-16 03:17:02,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:02,813 INFO L82 PathProgramCache]: Analyzing trace with hash 33626830, now seen corresponding path program 1 times [2021-10-16 03:17:02,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:02,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556579438] [2021-10-16 03:17:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:02,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:02,862 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:02,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556579438] [2021-10-16 03:17:02,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556579438] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:02,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:02,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-16 03:17:02,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208774997] [2021-10-16 03:17:02,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:17:02,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:02,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:17:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:02,867 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:03,046 INFO L93 Difference]: Finished difference Result 246 states and 300 transitions. [2021-10-16 03:17:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:17:03,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-16 03:17:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:03,048 INFO L225 Difference]: With dead ends: 246 [2021-10-16 03:17:03,049 INFO L226 Difference]: Without dead ends: 144 [2021-10-16 03:17:03,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-16 03:17:03,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-10-16 03:17:03,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 108 states have (on average 1.5555555555555556) internal successors, (168), 141 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 168 transitions. [2021-10-16 03:17:03,105 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 168 transitions. Word has length 6 [2021-10-16 03:17:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:03,106 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 168 transitions. [2021-10-16 03:17:03,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 168 transitions. [2021-10-16 03:17:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:17:03,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:03,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:03,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:17:03,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:03,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1858698196, now seen corresponding path program 1 times [2021-10-16 03:17:03,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:03,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144560166] [2021-10-16 03:17:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:03,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:03,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:03,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144560166] [2021-10-16 03:17:03,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144560166] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:03,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:03,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:17:03,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872211581] [2021-10-16 03:17:03,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:17:03,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:03,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:17:03,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:03,228 INFO L87 Difference]: Start difference. First operand 142 states and 168 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:03,424 INFO L93 Difference]: Finished difference Result 190 states and 221 transitions. [2021-10-16 03:17:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:17:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 03:17:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:03,428 INFO L225 Difference]: With dead ends: 190 [2021-10-16 03:17:03,428 INFO L226 Difference]: Without dead ends: 180 [2021-10-16 03:17:03,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:17:03,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-16 03:17:03,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 143. [2021-10-16 03:17:03,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 116 states have (on average 1.4655172413793103) internal successors, (170), 142 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2021-10-16 03:17:03,446 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 10 [2021-10-16 03:17:03,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:03,447 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2021-10-16 03:17:03,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,447 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2021-10-16 03:17:03,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:17:03,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:03,448 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:03,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 03:17:03,449 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:03,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1785069437, now seen corresponding path program 1 times [2021-10-16 03:17:03,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:03,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641751389] [2021-10-16 03:17:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:03,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:03,511 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:03,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641751389] [2021-10-16 03:17:03,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641751389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:03,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:03,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:17:03,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097114480] [2021-10-16 03:17:03,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:17:03,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:03,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:17:03,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:03,514 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:03,648 INFO L93 Difference]: Finished difference Result 180 states and 207 transitions. [2021-10-16 03:17:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:17:03,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 03:17:03,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:03,651 INFO L225 Difference]: With dead ends: 180 [2021-10-16 03:17:03,651 INFO L226 Difference]: Without dead ends: 172 [2021-10-16 03:17:03,652 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-16 03:17:03,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 129. [2021-10-16 03:17:03,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 108 states have (on average 1.4444444444444444) internal successors, (156), 128 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2021-10-16 03:17:03,685 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 11 [2021-10-16 03:17:03,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:03,686 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2021-10-16 03:17:03,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,686 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2021-10-16 03:17:03,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:17:03,687 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:03,688 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:03,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 03:17:03,688 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:03,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:03,689 INFO L82 PathProgramCache]: Analyzing trace with hash -679249742, now seen corresponding path program 1 times [2021-10-16 03:17:03,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:03,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259959278] [2021-10-16 03:17:03,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:03,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:03,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:03,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:03,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259959278] [2021-10-16 03:17:03,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259959278] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:03,777 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:03,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:17:03,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768999199] [2021-10-16 03:17:03,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:17:03,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:17:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:03,781 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:03,945 INFO L93 Difference]: Finished difference Result 292 states and 344 transitions. [2021-10-16 03:17:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:17:03,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-16 03:17:03,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:03,948 INFO L225 Difference]: With dead ends: 292 [2021-10-16 03:17:03,948 INFO L226 Difference]: Without dead ends: 190 [2021-10-16 03:17:03,953 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:03,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-16 03:17:03,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 139. [2021-10-16 03:17:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 118 states have (on average 1.423728813559322) internal successors, (168), 138 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 168 transitions. [2021-10-16 03:17:03,980 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 168 transitions. Word has length 11 [2021-10-16 03:17:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:03,981 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 168 transitions. [2021-10-16 03:17:03,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 168 transitions. [2021-10-16 03:17:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 03:17:03,986 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:03,987 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:03,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 03:17:03,988 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)] === [2021-10-16 03:17:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:03,988 INFO L82 PathProgramCache]: Analyzing trace with hash 911828432, now seen corresponding path program 1 times [2021-10-16 03:17:03,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:03,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477897263] [2021-10-16 03:17:03,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:03,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:04,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:04,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477897263] [2021-10-16 03:17:04,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477897263] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:04,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:04,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:17:04,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517004094] [2021-10-16 03:17:04,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:17:04,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:04,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:17:04,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:04,057 INFO L87 Difference]: Start difference. First operand 139 states and 168 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:04,133 INFO L93 Difference]: Finished difference Result 215 states and 257 transitions. [2021-10-16 03:17:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:17:04,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-16 03:17:04,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:04,135 INFO L225 Difference]: With dead ends: 215 [2021-10-16 03:17:04,136 INFO L226 Difference]: Without dead ends: 128 [2021-10-16 03:17:04,137 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:17:04,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-16 03:17:04,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-16 03:17:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 108 states have (on average 1.4074074074074074) internal successors, (152), 127 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 152 transitions. [2021-10-16 03:17:04,156 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 152 transitions. Word has length 12 [2021-10-16 03:17:04,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:04,157 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 152 transitions. [2021-10-16 03:17:04,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 152 transitions. [2021-10-16 03:17:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 03:17:04,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:04,158 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:04,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 03:17:04,158 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:04,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:04,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1200557442, now seen corresponding path program 1 times [2021-10-16 03:17:04,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:04,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120410278] [2021-10-16 03:17:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:04,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:04,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:04,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120410278] [2021-10-16 03:17:04,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120410278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:17:04,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161457586] [2021-10-16 03:17:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:04,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:04,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:17:04,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:17:04,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:17:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:04,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:17:04,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:04,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:04,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161457586] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:04,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-16 03:17:04,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2021-10-16 03:17:04,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946131004] [2021-10-16 03:17:04,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:17:04,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:04,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:17:04,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:17:04,463 INFO L87 Difference]: Start difference. First operand 128 states and 152 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:04,640 INFO L93 Difference]: Finished difference Result 232 states and 261 transitions. [2021-10-16 03:17:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:17:04,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-16 03:17:04,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:04,643 INFO L225 Difference]: With dead ends: 232 [2021-10-16 03:17:04,643 INFO L226 Difference]: Without dead ends: 229 [2021-10-16 03:17:04,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:17:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-16 03:17:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 124. [2021-10-16 03:17:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3962264150943395) internal successors, (148), 123 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 148 transitions. [2021-10-16 03:17:04,651 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 148 transitions. Word has length 12 [2021-10-16 03:17:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:04,651 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 148 transitions. [2021-10-16 03:17:04,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 148 transitions. [2021-10-16 03:17:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 03:17:04,652 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:04,652 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:04,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:04,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-16 03:17:04,879 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:04,880 INFO L82 PathProgramCache]: Analyzing trace with hash 413332862, now seen corresponding path program 1 times [2021-10-16 03:17:04,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:04,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202518515] [2021-10-16 03:17:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:04,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:04,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 03:17:04,930 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:04,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202518515] [2021-10-16 03:17:04,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202518515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:04,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:04,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:17:04,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514607997] [2021-10-16 03:17:04,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:17:04,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:04,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:17:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:04,933 INFO L87 Difference]: Start difference. First operand 124 states and 148 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:05,038 INFO L93 Difference]: Finished difference Result 202 states and 229 transitions. [2021-10-16 03:17:05,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:17:05,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-16 03:17:05,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:05,040 INFO L225 Difference]: With dead ends: 202 [2021-10-16 03:17:05,040 INFO L226 Difference]: Without dead ends: 198 [2021-10-16 03:17:05,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-16 03:17:05,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 122. [2021-10-16 03:17:05,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.3867924528301887) internal successors, (147), 121 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 147 transitions. [2021-10-16 03:17:05,052 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 147 transitions. Word has length 16 [2021-10-16 03:17:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:05,052 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 147 transitions. [2021-10-16 03:17:05,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 147 transitions. [2021-10-16 03:17:05,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-16 03:17:05,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:05,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:05,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 03:17:05,058 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:05,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:05,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1062210422, now seen corresponding path program 1 times [2021-10-16 03:17:05,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:05,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457467661] [2021-10-16 03:17:05,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:05,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:05,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:05,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457467661] [2021-10-16 03:17:05,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457467661] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:17:05,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:17:05,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:17:05,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019987114] [2021-10-16 03:17:05,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:17:05,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:17:05,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:17:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:05,143 INFO L87 Difference]: Start difference. First operand 122 states and 147 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:17:05,230 INFO L93 Difference]: Finished difference Result 224 states and 266 transitions. [2021-10-16 03:17:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:17:05,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-16 03:17:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:17:05,232 INFO L225 Difference]: With dead ends: 224 [2021-10-16 03:17:05,232 INFO L226 Difference]: Without dead ends: 117 [2021-10-16 03:17:05,232 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:17:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-16 03:17:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2021-10-16 03:17:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 98 states have (on average 1.3673469387755102) internal successors, (134), 113 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2021-10-16 03:17:05,239 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 21 [2021-10-16 03:17:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:17:05,240 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2021-10-16 03:17:05,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:17:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2021-10-16 03:17:05,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 03:17:05,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:17:05,241 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:17:05,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 03:17:05,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-16 03:17:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:17:05,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1720003379, now seen corresponding path program 1 times [2021-10-16 03:17:05,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:17:05,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616321080] [2021-10-16 03:17:05,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:05,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:17:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:05,297 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:17:05,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616321080] [2021-10-16 03:17:05,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616321080] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:17:05,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301793157] [2021-10-16 03:17:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:17:05,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:05,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:17:05,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:17:05,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 03:17:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:17:05,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:17:05,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:17:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:05,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:17:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:17:05,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301793157] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:17:05,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [31702191] [2021-10-16 03:17:05,600 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-10-16 03:17:05,601 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:17:05,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:17:05,611 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:17:05,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:17:05,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,691 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:17:05,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:17:05,698 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:17:05,699 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,700 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:17:05,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-16 03:17:05,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:05,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:17:05,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:17:05,765 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,766 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:17:05,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:17:05,768 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:17:05,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:17:05,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:17:05,789 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-16 03:17:05,790 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:17:05,790 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:144, output treesize:147 [2021-10-16 03:17:05,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:17:06,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:17:06,016 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:17:06,019 INFO L168 Benchmark]: Toolchain (without parser) took 5009.44 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 55.5 MB in the beginning and 42.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 56.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,019 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 59.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:17:06,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.54 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 55.3 MB in the beginning and 107.0 MB in the end (delta: -51.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.56 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 104.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,021 INFO L168 Benchmark]: Boogie Preprocessor took 53.48 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 102.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,021 INFO L168 Benchmark]: RCFGBuilder took 827.67 ms. Allocated memory is still 134.2 MB. Free memory was 102.8 MB in the beginning and 73.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,022 INFO L168 Benchmark]: TraceAbstraction took 3633.88 ms. Allocated memory is still 134.2 MB. Free memory was 73.5 MB in the beginning and 42.1 MB in the end (delta: 31.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:17:06,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 59.5 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.54 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 55.3 MB in the beginning and 107.0 MB in the end (delta: -51.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.56 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 104.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.48 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 102.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 827.67 ms. Allocated memory is still 134.2 MB. Free memory was 102.8 MB in the beginning and 73.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3633.88 ms. Allocated memory is still 134.2 MB. Free memory was 73.5 MB in the beginning and 42.1 MB in the end (delta: 31.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:17:06,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5097a24f-d9fb-487c-b8fe-1ce2ad882ae9/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...