./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:34:00,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:34:00,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:34:00,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:34:00,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:34:00,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:34:00,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:34:00,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:34:00,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:34:00,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:34:00,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:34:00,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:34:00,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:34:00,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:34:00,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:34:00,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:34:00,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:34:00,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:34:00,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:34:00,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:34:00,325 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:34:00,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:34:00,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:34:00,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:34:00,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:34:00,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:34:00,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:34:00,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:34:00,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:34:00,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:34:00,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:34:00,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:34:00,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:34:00,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:34:00,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:34:00,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:34:00,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:34:00,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:34:00,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:34:00,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:34:00,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:34:00,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:34:00,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:34:00,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:34:00,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:34:00,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:34:00,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:34:00,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:34:00,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:34:00,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:34:00,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:34:00,376 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:34:00,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:34:00,376 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:34:00,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:34:00,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:34:00,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:34:00,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:34:00,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:34:00,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:34:00,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:34:00,378 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:34:00,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:34:00,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:34:00,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:34:00,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:34:00,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:34:00,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:34:00,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:34:00,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:00,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:34:00,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:34:00,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:34:00,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:34:00,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:34:00,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:34:00,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2022-07-23 13:34:00,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:34:00,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:34:00,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:34:00,619 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:34:00,620 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:34:00,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-23 13:34:00,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24826d3ff/e112f9f93b6d4941b4d59baf666ca789/FLAG555a87640 [2022-07-23 13:34:01,096 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:34:01,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2022-07-23 13:34:01,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24826d3ff/e112f9f93b6d4941b4d59baf666ca789/FLAG555a87640 [2022-07-23 13:34:01,499 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24826d3ff/e112f9f93b6d4941b4d59baf666ca789 [2022-07-23 13:34:01,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:34:01,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:34:01,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:01,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:34:01,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:34:01,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb2022b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01, skipping insertion in model container [2022-07-23 13:34:01,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:34:01,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:34:01,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-07-23 13:34:01,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:01,743 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:34:01,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[730,743] [2022-07-23 13:34:01,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:01,828 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:34:01,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01 WrapperNode [2022-07-23 13:34:01,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:01,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:01,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:34:01,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:34:01,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,871 INFO L137 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 225 [2022-07-23 13:34:01,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:01,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:34:01,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:34:01,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:34:01,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:34:01,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:34:01,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:34:01,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:34:01,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (1/1) ... [2022-07-23 13:34:01,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:01,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:01,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:34:01,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:34:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:34:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:34:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-23 13:34:01,987 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-23 13:34:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:34:01,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:34:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-23 13:34:01,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-23 13:34:02,075 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:34:02,076 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:34:02,409 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:34:02,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:34:02,417 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 13:34:02,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:02 BoogieIcfgContainer [2022-07-23 13:34:02,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:34:02,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:34:02,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:34:02,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:34:02,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:34:01" (1/3) ... [2022-07-23 13:34:02,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b16125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:02, skipping insertion in model container [2022-07-23 13:34:02,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:01" (2/3) ... [2022-07-23 13:34:02,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b16125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:02, skipping insertion in model container [2022-07-23 13:34:02,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:02" (3/3) ... [2022-07-23 13:34:02,432 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2022-07-23 13:34:02,447 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:34:02,447 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-23 13:34:02,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:34:02,493 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5409bc2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29cd5ff9 [2022-07-23 13:34:02,493 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-23 13:34:02,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 110 states have (on average 1.7818181818181817) internal successors, (196), 132 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-23 13:34:02,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:02,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:02,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:02,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:02,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1345103503, now seen corresponding path program 1 times [2022-07-23 13:34:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:02,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081054957] [2022-07-23 13:34:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:02,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:02,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081054957] [2022-07-23 13:34:02,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081054957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:02,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:02,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:34:02,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390415154] [2022-07-23 13:34:02,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:02,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 13:34:02,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 13:34:02,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:02,672 INFO L87 Difference]: Start difference. First operand has 142 states, 110 states have (on average 1.7818181818181817) internal successors, (196), 132 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:02,726 INFO L93 Difference]: Finished difference Result 279 states and 433 transitions. [2022-07-23 13:34:02,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 13:34:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:34:02,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:02,741 INFO L225 Difference]: With dead ends: 279 [2022-07-23 13:34:02,741 INFO L226 Difference]: Without dead ends: 107 [2022-07-23 13:34:02,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:02,754 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:02,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-23 13:34:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-07-23 13:34:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.5432098765432098) internal successors, (125), 98 states have internal predecessors, (125), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:02,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 137 transitions. [2022-07-23 13:34:02,812 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 137 transitions. Word has length 9 [2022-07-23 13:34:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:02,812 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 137 transitions. [2022-07-23 13:34:02,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 137 transitions. [2022-07-23 13:34:02,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:02,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:02,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:02,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:34:02,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:02,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:02,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1344162155, now seen corresponding path program 1 times [2022-07-23 13:34:02,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:02,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909450158] [2022-07-23 13:34:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:02,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:02,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909450158] [2022-07-23 13:34:02,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909450158] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:02,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:02,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:02,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880057179] [2022-07-23 13:34:02,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:02,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:02,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:02,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:02,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:02,926 INFO L87 Difference]: Start difference. First operand 107 states and 137 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:03,042 INFO L93 Difference]: Finished difference Result 273 states and 365 transitions. [2022-07-23 13:34:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:34:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:03,046 INFO L225 Difference]: With dead ends: 273 [2022-07-23 13:34:03,046 INFO L226 Difference]: Without dead ends: 169 [2022-07-23 13:34:03,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:03,048 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 106 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:03,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 361 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:03,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-07-23 13:34:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 156. [2022-07-23 13:34:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 129 states have (on average 1.550387596899225) internal successors, (200), 146 states have internal predecessors, (200), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 212 transitions. [2022-07-23 13:34:03,066 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 212 transitions. Word has length 9 [2022-07-23 13:34:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:03,067 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 212 transitions. [2022-07-23 13:34:03,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 212 transitions. [2022-07-23 13:34:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:34:03,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:03,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:03,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:34:03,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:03,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:03,073 INFO L85 PathProgramCache]: Analyzing trace with hash 466647620, now seen corresponding path program 1 times [2022-07-23 13:34:03,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:03,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540065339] [2022-07-23 13:34:03,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:03,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:03,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:03,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:03,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540065339] [2022-07-23 13:34:03,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540065339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:03,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:03,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397508409] [2022-07-23 13:34:03,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:03,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:03,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:03,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:03,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:03,122 INFO L87 Difference]: Start difference. First operand 156 states and 212 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:03,240 INFO L93 Difference]: Finished difference Result 191 states and 251 transitions. [2022-07-23 13:34:03,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:03,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-23 13:34:03,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:03,243 INFO L225 Difference]: With dead ends: 191 [2022-07-23 13:34:03,244 INFO L226 Difference]: Without dead ends: 188 [2022-07-23 13:34:03,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:03,248 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 161 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:03,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 483 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-23 13:34:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 163. [2022-07-23 13:34:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 136 states have (on average 1.5514705882352942) internal successors, (211), 153 states have internal predecessors, (211), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 223 transitions. [2022-07-23 13:34:03,258 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 223 transitions. Word has length 13 [2022-07-23 13:34:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:03,259 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 223 transitions. [2022-07-23 13:34:03,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,259 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 223 transitions. [2022-07-23 13:34:03,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-23 13:34:03,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:03,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:03,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:34:03,261 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:03,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:03,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1581174453, now seen corresponding path program 1 times [2022-07-23 13:34:03,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:03,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663873535] [2022-07-23 13:34:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:03,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:03,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:03,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663873535] [2022-07-23 13:34:03,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663873535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:03,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:03,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:03,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875162348] [2022-07-23 13:34:03,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:03,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:03,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:03,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:03,299 INFO L87 Difference]: Start difference. First operand 163 states and 223 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:03,416 INFO L93 Difference]: Finished difference Result 306 states and 404 transitions. [2022-07-23 13:34:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:03,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-23 13:34:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:03,418 INFO L225 Difference]: With dead ends: 306 [2022-07-23 13:34:03,418 INFO L226 Difference]: Without dead ends: 198 [2022-07-23 13:34:03,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:03,420 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 190 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:03,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 399 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-07-23 13:34:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 167. [2022-07-23 13:34:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 140 states have (on average 1.5285714285714285) internal successors, (214), 157 states have internal predecessors, (214), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2022-07-23 13:34:03,439 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 14 [2022-07-23 13:34:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:03,439 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2022-07-23 13:34:03,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2022-07-23 13:34:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-23 13:34:03,441 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:03,441 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:03,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:34:03,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1172920179, now seen corresponding path program 1 times [2022-07-23 13:34:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607286973] [2022-07-23 13:34:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:03,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:03,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607286973] [2022-07-23 13:34:03,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607286973] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:03,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061296882] [2022-07-23 13:34:03,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:03,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:03,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:03,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:03,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:34:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:03,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:03,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:03,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:03,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061296882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:03,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:03,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:03,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702414125] [2022-07-23 13:34:03,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:03,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:03,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:03,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:03,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:03,633 INFO L87 Difference]: Start difference. First operand 167 states and 226 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:03,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:03,721 INFO L93 Difference]: Finished difference Result 237 states and 323 transitions. [2022-07-23 13:34:03,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:03,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-23 13:34:03,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:03,725 INFO L225 Difference]: With dead ends: 237 [2022-07-23 13:34:03,725 INFO L226 Difference]: Without dead ends: 233 [2022-07-23 13:34:03,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:03,728 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 188 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:03,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 381 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:03,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-23 13:34:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 203. [2022-07-23 13:34:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 176 states have (on average 1.5568181818181819) internal successors, (274), 192 states have internal predecessors, (274), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 286 transitions. [2022-07-23 13:34:03,752 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 286 transitions. Word has length 16 [2022-07-23 13:34:03,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:03,753 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 286 transitions. [2022-07-23 13:34:03,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2022-07-23 13:34:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:34:03,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:03,758 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:03,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-23 13:34:03,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:03,976 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:03,976 INFO L85 PathProgramCache]: Analyzing trace with hash 153036525, now seen corresponding path program 1 times [2022-07-23 13:34:03,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:03,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979683061] [2022-07-23 13:34:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:03,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:04,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:04,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979683061] [2022-07-23 13:34:04,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979683061] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:04,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050398053] [2022-07-23 13:34:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:04,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:04,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:04,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:04,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:34:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:34:04,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:04,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:04,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050398053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:04,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:04,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-23 13:34:04,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039004359] [2022-07-23 13:34:04,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:04,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:04,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:04,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:04,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:04,102 INFO L87 Difference]: Start difference. First operand 203 states and 286 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:04,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:04,152 INFO L93 Difference]: Finished difference Result 255 states and 357 transitions. [2022-07-23 13:34:04,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:04,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 13:34:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:04,154 INFO L225 Difference]: With dead ends: 255 [2022-07-23 13:34:04,154 INFO L226 Difference]: Without dead ends: 253 [2022-07-23 13:34:04,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:04,155 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 28 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:04,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 278 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-07-23 13:34:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 196. [2022-07-23 13:34:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 169 states have (on average 1.532544378698225) internal successors, (259), 185 states have internal predecessors, (259), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 271 transitions. [2022-07-23 13:34:04,163 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 271 transitions. Word has length 15 [2022-07-23 13:34:04,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:04,164 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 271 transitions. [2022-07-23 13:34:04,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:04,164 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 271 transitions. [2022-07-23 13:34:04,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-23 13:34:04,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:04,164 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:04,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:04,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 13:34:04,384 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:04,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2000787238, now seen corresponding path program 1 times [2022-07-23 13:34:04,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:04,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604911681] [2022-07-23 13:34:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:04,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:34:04,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:04,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604911681] [2022-07-23 13:34:04,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604911681] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:04,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988018403] [2022-07-23 13:34:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:04,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:04,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:04,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:04,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:34:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:04,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:04,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:04,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988018403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:04,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:04,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-23 13:34:04,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702446437] [2022-07-23 13:34:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:04,482 INFO L87 Difference]: Start difference. First operand 196 states and 271 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:04,536 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2022-07-23 13:34:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:04,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-23 13:34:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:04,538 INFO L225 Difference]: With dead ends: 205 [2022-07-23 13:34:04,538 INFO L226 Difference]: Without dead ends: 204 [2022-07-23 13:34:04,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:04,539 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 3 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:04,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 248 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:04,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-07-23 13:34:04,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 193. [2022-07-23 13:34:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.5209580838323353) internal successors, (254), 182 states have internal predecessors, (254), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 266 transitions. [2022-07-23 13:34:04,551 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 266 transitions. Word has length 17 [2022-07-23 13:34:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:04,552 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 266 transitions. [2022-07-23 13:34:04,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 266 transitions. [2022-07-23 13:34:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-23 13:34:04,554 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:04,554 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:04,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 13:34:04,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:04,767 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:04,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:04,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1512656933, now seen corresponding path program 1 times [2022-07-23 13:34:04,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:04,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640001405] [2022-07-23 13:34:04,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:04,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:04,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:04,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640001405] [2022-07-23 13:34:04,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640001405] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:04,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082821424] [2022-07-23 13:34:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:04,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:04,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:04,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:04,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:34:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:04,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:04,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:04,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:04,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:04,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082821424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:04,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:04,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:04,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319052514] [2022-07-23 13:34:04,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:04,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:04,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:04,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:04,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:04,887 INFO L87 Difference]: Start difference. First operand 193 states and 266 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:04,963 INFO L93 Difference]: Finished difference Result 236 states and 320 transitions. [2022-07-23 13:34:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-23 13:34:04,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:04,964 INFO L225 Difference]: With dead ends: 236 [2022-07-23 13:34:04,964 INFO L226 Difference]: Without dead ends: 233 [2022-07-23 13:34:04,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:04,966 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 173 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:04,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 382 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:04,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-23 13:34:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 201. [2022-07-23 13:34:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 175 states have (on average 1.5142857142857142) internal successors, (265), 190 states have internal predecessors, (265), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 277 transitions. [2022-07-23 13:34:04,976 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 277 transitions. Word has length 18 [2022-07-23 13:34:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:04,977 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 277 transitions. [2022-07-23 13:34:04,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 277 transitions. [2022-07-23 13:34:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 13:34:04,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:04,978 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:05,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:05,192 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1085205661, now seen corresponding path program 1 times [2022-07-23 13:34:05,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:05,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531909184] [2022-07-23 13:34:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:05,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:05,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531909184] [2022-07-23 13:34:05,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531909184] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:05,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:05,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:05,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422841685] [2022-07-23 13:34:05,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:05,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:05,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:05,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:05,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:05,227 INFO L87 Difference]: Start difference. First operand 201 states and 277 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:05,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:05,282 INFO L93 Difference]: Finished difference Result 256 states and 353 transitions. [2022-07-23 13:34:05,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:05,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-23 13:34:05,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:05,285 INFO L225 Difference]: With dead ends: 256 [2022-07-23 13:34:05,285 INFO L226 Difference]: Without dead ends: 254 [2022-07-23 13:34:05,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:05,288 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 24 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:05,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 377 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:05,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-07-23 13:34:05,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 201. [2022-07-23 13:34:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 175 states have (on average 1.502857142857143) internal successors, (263), 190 states have internal predecessors, (263), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:05,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 275 transitions. [2022-07-23 13:34:05,299 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 275 transitions. Word has length 19 [2022-07-23 13:34:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:05,299 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 275 transitions. [2022-07-23 13:34:05,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 275 transitions. [2022-07-23 13:34:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-23 13:34:05,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:05,300 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:05,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 13:34:05,300 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:05,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash 928226989, now seen corresponding path program 1 times [2022-07-23 13:34:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:05,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287632542] [2022-07-23 13:34:05,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:05,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287632542] [2022-07-23 13:34:05,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287632542] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298004942] [2022-07-23 13:34:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:05,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:05,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:05,360 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:05,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:34:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:05,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:05,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:05,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298004942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:05,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:05,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335130876] [2022-07-23 13:34:05,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:05,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:05,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:05,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:05,434 INFO L87 Difference]: Start difference. First operand 201 states and 275 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:05,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:05,518 INFO L93 Difference]: Finished difference Result 231 states and 316 transitions. [2022-07-23 13:34:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:05,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-23 13:34:05,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:05,520 INFO L225 Difference]: With dead ends: 231 [2022-07-23 13:34:05,520 INFO L226 Difference]: Without dead ends: 228 [2022-07-23 13:34:05,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:05,521 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 178 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:05,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 379 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-07-23 13:34:05,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 189. [2022-07-23 13:34:05,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 166 states have (on average 1.463855421686747) internal successors, (243), 178 states have internal predecessors, (243), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 255 transitions. [2022-07-23 13:34:05,531 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 255 transitions. Word has length 23 [2022-07-23 13:34:05,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:05,531 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 255 transitions. [2022-07-23 13:34:05,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 255 transitions. [2022-07-23 13:34:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-23 13:34:05,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:05,532 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:05,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:05,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-23 13:34:05,756 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:05,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash -439611243, now seen corresponding path program 1 times [2022-07-23 13:34:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:05,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539192605] [2022-07-23 13:34:05,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:05,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:05,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539192605] [2022-07-23 13:34:05,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539192605] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:05,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756096853] [2022-07-23 13:34:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:05,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:05,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:05,826 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:05,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:34:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:05,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:05,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:05,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:05,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756096853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:05,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:05,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:05,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590884064] [2022-07-23 13:34:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:05,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:05,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:05,909 INFO L87 Difference]: Start difference. First operand 189 states and 255 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:05,979 INFO L93 Difference]: Finished difference Result 219 states and 295 transitions. [2022-07-23 13:34:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:05,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-23 13:34:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:05,981 INFO L225 Difference]: With dead ends: 219 [2022-07-23 13:34:05,981 INFO L226 Difference]: Without dead ends: 216 [2022-07-23 13:34:05,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:05,982 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 162 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:05,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 385 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:05,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-07-23 13:34:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 178. [2022-07-23 13:34:05,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 158 states have (on average 1.4430379746835442) internal successors, (228), 167 states have internal predecessors, (228), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:05,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 240 transitions. [2022-07-23 13:34:05,991 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 240 transitions. Word has length 25 [2022-07-23 13:34:05,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:05,991 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 240 transitions. [2022-07-23 13:34:05,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:05,992 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 240 transitions. [2022-07-23 13:34:05,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 13:34:05,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:05,993 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:06,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:06,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:06,216 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash -853587819, now seen corresponding path program 1 times [2022-07-23 13:34:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:06,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804414619] [2022-07-23 13:34:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:06,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:06,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804414619] [2022-07-23 13:34:06,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804414619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:06,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:06,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 13:34:06,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139482998] [2022-07-23 13:34:06,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:06,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 13:34:06,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:06,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 13:34:06,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:34:06,314 INFO L87 Difference]: Start difference. First operand 178 states and 240 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:06,440 INFO L93 Difference]: Finished difference Result 330 states and 425 transitions. [2022-07-23 13:34:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 13:34:06,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-07-23 13:34:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:06,443 INFO L225 Difference]: With dead ends: 330 [2022-07-23 13:34:06,443 INFO L226 Difference]: Without dead ends: 260 [2022-07-23 13:34:06,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:06,444 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 88 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:06,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 759 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:06,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-23 13:34:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 180. [2022-07-23 13:34:06,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 160 states have (on average 1.425) internal successors, (228), 169 states have internal predecessors, (228), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2022-07-23 13:34:06,454 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 31 [2022-07-23 13:34:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:06,454 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2022-07-23 13:34:06,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2022-07-23 13:34:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-23 13:34:06,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:06,455 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:06,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 13:34:06,456 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:06,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:06,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1244113542, now seen corresponding path program 1 times [2022-07-23 13:34:06,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:06,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801503949] [2022-07-23 13:34:06,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:06,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:06,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801503949] [2022-07-23 13:34:06,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801503949] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:06,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525440263] [2022-07-23 13:34:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:06,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:06,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:06,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:06,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:34:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:06,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 13:34:06,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:06,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-23 13:34:06,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525440263] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:06,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-23 13:34:06,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 6] total 13 [2022-07-23 13:34:06,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427359852] [2022-07-23 13:34:06,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:06,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:06,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:06,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:06,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:34:06,763 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:06,785 INFO L93 Difference]: Finished difference Result 232 states and 299 transitions. [2022-07-23 13:34:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:06,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-07-23 13:34:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:06,786 INFO L225 Difference]: With dead ends: 232 [2022-07-23 13:34:06,786 INFO L226 Difference]: Without dead ends: 181 [2022-07-23 13:34:06,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:34:06,787 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 105 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:06,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 191 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:06,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-07-23 13:34:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2022-07-23 13:34:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 160 states have (on average 1.41875) internal successors, (227), 169 states have internal predecessors, (227), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:06,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 239 transitions. [2022-07-23 13:34:06,796 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 239 transitions. Word has length 35 [2022-07-23 13:34:06,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:06,796 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 239 transitions. [2022-07-23 13:34:06,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:06,797 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 239 transitions. [2022-07-23 13:34:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 13:34:06,797 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:06,798 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:06,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:07,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:07,016 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:07,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2136066482, now seen corresponding path program 1 times [2022-07-23 13:34:07,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:07,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947523584] [2022-07-23 13:34:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:07,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:07,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947523584] [2022-07-23 13:34:07,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947523584] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521941224] [2022-07-23 13:34:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:07,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:07,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:07,097 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:07,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:34:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:34:07,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:07,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:07,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521941224] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:07,289 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:07,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-07-23 13:34:07,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333374539] [2022-07-23 13:34:07,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:07,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 13:34:07,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 13:34:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:34:07,291 INFO L87 Difference]: Start difference. First operand 180 states and 239 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:07,512 INFO L93 Difference]: Finished difference Result 450 states and 564 transitions. [2022-07-23 13:34:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 13:34:07,512 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 38 [2022-07-23 13:34:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:07,514 INFO L225 Difference]: With dead ends: 450 [2022-07-23 13:34:07,514 INFO L226 Difference]: Without dead ends: 386 [2022-07-23 13:34:07,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-07-23 13:34:07,515 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 307 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:07,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1307 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:34:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-23 13:34:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 194. [2022-07-23 13:34:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 172 states have (on average 1.4069767441860466) internal successors, (242), 181 states have internal predecessors, (242), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 13:34:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 257 transitions. [2022-07-23 13:34:07,527 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 257 transitions. Word has length 38 [2022-07-23 13:34:07,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:07,527 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 257 transitions. [2022-07-23 13:34:07,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:07,528 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 257 transitions. [2022-07-23 13:34:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-23 13:34:07,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:07,528 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:07,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:07,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 13:34:07,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:07,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1326719856, now seen corresponding path program 1 times [2022-07-23 13:34:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:07,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618772309] [2022-07-23 13:34:07,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:07,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:07,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618772309] [2022-07-23 13:34:07,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618772309] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:07,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897324369] [2022-07-23 13:34:07,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:07,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:07,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:07,829 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:07,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:34:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:07,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 13:34:07,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:07,956 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:34:07,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:08,075 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:08,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897324369] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:08,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:08,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 17 [2022-07-23 13:34:08,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530173124] [2022-07-23 13:34:08,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:08,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 13:34:08,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:08,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 13:34:08,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:34:08,077 INFO L87 Difference]: Start difference. First operand 194 states and 257 transitions. Second operand has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:08,621 INFO L93 Difference]: Finished difference Result 490 states and 643 transitions. [2022-07-23 13:34:08,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-23 13:34:08,622 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 38 [2022-07-23 13:34:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:08,623 INFO L225 Difference]: With dead ends: 490 [2022-07-23 13:34:08,623 INFO L226 Difference]: Without dead ends: 280 [2022-07-23 13:34:08,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=679, Unknown=0, NotChecked=0, Total=812 [2022-07-23 13:34:08,624 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 198 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:08,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1325 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:34:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-07-23 13:34:08,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 135. [2022-07-23 13:34:08,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.391304347826087) internal successors, (160), 124 states have internal predecessors, (160), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:08,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 172 transitions. [2022-07-23 13:34:08,635 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 172 transitions. Word has length 38 [2022-07-23 13:34:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:08,635 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 172 transitions. [2022-07-23 13:34:08,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 14 states have internal predecessors, (43), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 172 transitions. [2022-07-23 13:34:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-23 13:34:08,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:08,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:08,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:08,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-23 13:34:08,852 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:08,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1749175167, now seen corresponding path program 2 times [2022-07-23 13:34:08,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:08,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167946965] [2022-07-23 13:34:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:08,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:08,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:08,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:08,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:08,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167946965] [2022-07-23 13:34:08,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167946965] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:08,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032836760] [2022-07-23 13:34:08,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:34:08,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:08,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:08,929 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:08,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:34:08,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:34:08,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:34:08,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 13:34:08,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:09,031 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:09,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:09,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032836760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:09,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:09,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-23 13:34:09,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722428767] [2022-07-23 13:34:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:09,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:34:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:34:09,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:09,033 INFO L87 Difference]: Start difference. First operand 135 states and 172 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:09,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:09,081 INFO L93 Difference]: Finished difference Result 260 states and 320 transitions. [2022-07-23 13:34:09,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:09,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-07-23 13:34:09,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:09,084 INFO L225 Difference]: With dead ends: 260 [2022-07-23 13:34:09,084 INFO L226 Difference]: Without dead ends: 202 [2022-07-23 13:34:09,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:34:09,085 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 66 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:09,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 614 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-23 13:34:09,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 143. [2022-07-23 13:34:09,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 122 states have (on average 1.3852459016393444) internal successors, (169), 131 states have internal predecessors, (169), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-07-23 13:34:09,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 182 transitions. [2022-07-23 13:34:09,094 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 182 transitions. Word has length 42 [2022-07-23 13:34:09,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:09,094 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 182 transitions. [2022-07-23 13:34:09,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:09,094 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 182 transitions. [2022-07-23 13:34:09,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-23 13:34:09,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:09,095 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:09,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:09,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-23 13:34:09,308 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:09,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:09,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1287754489, now seen corresponding path program 1 times [2022-07-23 13:34:09,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:09,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994662292] [2022-07-23 13:34:09,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:09,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:09,412 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:09,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994662292] [2022-07-23 13:34:09,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994662292] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:09,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875168235] [2022-07-23 13:34:09,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:09,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:09,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:09,414 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:09,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:34:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:09,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 13:34:09,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-23 13:34:09,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:09,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875168235] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:09,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:09,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 14 [2022-07-23 13:34:09,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912897482] [2022-07-23 13:34:09,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:09,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 13:34:09,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 13:34:09,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:34:09,618 INFO L87 Difference]: Start difference. First operand 143 states and 182 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:09,977 INFO L93 Difference]: Finished difference Result 306 states and 392 transitions. [2022-07-23 13:34:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-23 13:34:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 44 [2022-07-23 13:34:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:09,979 INFO L225 Difference]: With dead ends: 306 [2022-07-23 13:34:09,979 INFO L226 Difference]: Without dead ends: 244 [2022-07-23 13:34:09,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:34:09,980 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 313 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:09,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 768 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:34:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-07-23 13:34:09,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 135. [2022-07-23 13:34:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.373913043478261) internal successors, (158), 124 states have internal predecessors, (158), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:09,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2022-07-23 13:34:09,989 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 44 [2022-07-23 13:34:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:09,989 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2022-07-23 13:34:09,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2022-07-23 13:34:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-23 13:34:09,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:09,990 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:10,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:10,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-23 13:34:10,217 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:10,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:10,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1203752287, now seen corresponding path program 1 times [2022-07-23 13:34:10,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:10,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998493350] [2022-07-23 13:34:10,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:10,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:10,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:10,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998493350] [2022-07-23 13:34:10,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998493350] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:10,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55245127] [2022-07-23 13:34:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:10,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:10,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:10,345 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:10,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 13:34:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:10,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 13:34:10,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:10,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:10,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55245127] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:10,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:10,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2022-07-23 13:34:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783198227] [2022-07-23 13:34:10,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:10,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-23 13:34:10,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:10,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-23 13:34:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-07-23 13:34:10,720 INFO L87 Difference]: Start difference. First operand 135 states and 170 transitions. Second operand has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:10,974 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2022-07-23 13:34:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 13:34:10,974 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2022-07-23 13:34:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:10,975 INFO L225 Difference]: With dead ends: 283 [2022-07-23 13:34:10,976 INFO L226 Difference]: Without dead ends: 227 [2022-07-23 13:34:10,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:34:10,976 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 334 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:10,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1163 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:34:10,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-07-23 13:34:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 156. [2022-07-23 13:34:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 134 states have (on average 1.335820895522388) internal successors, (179), 143 states have internal predecessors, (179), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 13:34:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 194 transitions. [2022-07-23 13:34:10,987 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 194 transitions. Word has length 46 [2022-07-23 13:34:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:10,987 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 194 transitions. [2022-07-23 13:34:10,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.428571428571429) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 194 transitions. [2022-07-23 13:34:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 13:34:10,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:10,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:11,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:11,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-23 13:34:11,211 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash -760986112, now seen corresponding path program 1 times [2022-07-23 13:34:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:11,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110419142] [2022-07-23 13:34:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:11,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 13:34:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:11,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:11,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110419142] [2022-07-23 13:34:11,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110419142] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:11,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084007988] [2022-07-23 13:34:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:11,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:11,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:11,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:11,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 13:34:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:11,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:11,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:11,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084007988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:11,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:11,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-23 13:34:11,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855304850] [2022-07-23 13:34:11,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:11,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:11,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:11,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:11,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:11,316 INFO L87 Difference]: Start difference. First operand 156 states and 194 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:11,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:11,352 INFO L93 Difference]: Finished difference Result 296 states and 370 transitions. [2022-07-23 13:34:11,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:11,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 52 [2022-07-23 13:34:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:11,354 INFO L225 Difference]: With dead ends: 296 [2022-07-23 13:34:11,354 INFO L226 Difference]: Without dead ends: 180 [2022-07-23 13:34:11,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:11,355 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 10 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:11,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 222 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-07-23 13:34:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 166. [2022-07-23 13:34:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 144 states have (on average 1.3125) internal successors, (189), 153 states have internal predecessors, (189), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (8), 8 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 13:34:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 204 transitions. [2022-07-23 13:34:11,366 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 204 transitions. Word has length 52 [2022-07-23 13:34:11,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:11,366 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 204 transitions. [2022-07-23 13:34:11,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 204 transitions. [2022-07-23 13:34:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:34:11,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:11,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:11,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:11,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:11,584 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:11,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:11,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1055930893, now seen corresponding path program 1 times [2022-07-23 13:34:11,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:11,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105823779] [2022-07-23 13:34:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:11,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:11,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:11,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105823779] [2022-07-23 13:34:11,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105823779] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:11,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17835506] [2022-07-23 13:34:11,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:11,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:11,670 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:11,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-23 13:34:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:11,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 13:34:11,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:11,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:11,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17835506] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:11,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:11,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 10 [2022-07-23 13:34:11,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294114273] [2022-07-23 13:34:11,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:11,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:34:11,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:11,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:34:11,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:34:11,869 INFO L87 Difference]: Start difference. First operand 166 states and 204 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:12,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:12,118 INFO L93 Difference]: Finished difference Result 419 states and 508 transitions. [2022-07-23 13:34:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:34:12,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2022-07-23 13:34:12,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:12,121 INFO L225 Difference]: With dead ends: 419 [2022-07-23 13:34:12,121 INFO L226 Difference]: Without dead ends: 368 [2022-07-23 13:34:12,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 110 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:12,122 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 337 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:12,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1452 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:12,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-07-23 13:34:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 186. [2022-07-23 13:34:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.2962962962962963) internal successors, (210), 171 states have internal predecessors, (210), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 13:34:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 228 transitions. [2022-07-23 13:34:12,138 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 228 transitions. Word has length 53 [2022-07-23 13:34:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:12,139 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 228 transitions. [2022-07-23 13:34:12,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 228 transitions. [2022-07-23 13:34:12,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:34:12,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:12,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:12,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:12,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:12,364 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1055928971, now seen corresponding path program 1 times [2022-07-23 13:34:12,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:12,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486927309] [2022-07-23 13:34:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:12,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:12,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:12,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486927309] [2022-07-23 13:34:12,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486927309] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:12,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447087074] [2022-07-23 13:34:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:12,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:12,445 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:12,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-23 13:34:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:12,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:34:12,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:12,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:12,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447087074] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:12,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:12,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2022-07-23 13:34:12,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483268444] [2022-07-23 13:34:12,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:12,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-23 13:34:12,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-23 13:34:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-23 13:34:12,807 INFO L87 Difference]: Start difference. First operand 186 states and 228 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:13,612 INFO L93 Difference]: Finished difference Result 544 states and 679 transitions. [2022-07-23 13:34:13,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 13:34:13,614 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2022-07-23 13:34:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:13,616 INFO L225 Difference]: With dead ends: 544 [2022-07-23 13:34:13,616 INFO L226 Difference]: Without dead ends: 488 [2022-07-23 13:34:13,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=1154, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 13:34:13,617 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 562 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:13,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 1242 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 13:34:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-07-23 13:34:13,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 201. [2022-07-23 13:34:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 175 states have (on average 1.2857142857142858) internal successors, (225), 184 states have internal predecessors, (225), 9 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (12), 12 states have call predecessors, (12), 9 states have call successors, (12) [2022-07-23 13:34:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2022-07-23 13:34:13,637 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 53 [2022-07-23 13:34:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:13,637 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2022-07-23 13:34:13,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 16 states have internal predecessors, (73), 3 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2022-07-23 13:34:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:34:13,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:13,638 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:13,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:13,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:13,862 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:13,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:13,863 INFO L85 PathProgramCache]: Analyzing trace with hash -246584267, now seen corresponding path program 1 times [2022-07-23 13:34:13,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:13,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240029654] [2022-07-23 13:34:13,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:13,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:13,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:13,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240029654] [2022-07-23 13:34:13,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240029654] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:13,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121411323] [2022-07-23 13:34:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:13,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:13,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:13,978 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:14,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 13:34:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:14,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-23 13:34:14,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:14,151 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:14,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:14,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121411323] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:14,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:14,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 9] total 20 [2022-07-23 13:34:14,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995899080] [2022-07-23 13:34:14,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:14,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-23 13:34:14,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:14,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-23 13:34:14,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:34:14,321 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 20 states, 20 states have (on average 3.45) internal successors, (69), 17 states have internal predecessors, (69), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:15,103 INFO L93 Difference]: Finished difference Result 436 states and 552 transitions. [2022-07-23 13:34:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-23 13:34:15,104 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.45) internal successors, (69), 17 states have internal predecessors, (69), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2022-07-23 13:34:15,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:15,108 INFO L225 Difference]: With dead ends: 436 [2022-07-23 13:34:15,108 INFO L226 Difference]: Without dead ends: 346 [2022-07-23 13:34:15,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=1180, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 13:34:15,110 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 175 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:15,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1756 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 13:34:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-07-23 13:34:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 186. [2022-07-23 13:34:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.2901234567901234) internal successors, (209), 171 states have internal predecessors, (209), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 13:34:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2022-07-23 13:34:15,124 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 53 [2022-07-23 13:34:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:15,125 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2022-07-23 13:34:15,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.45) internal successors, (69), 17 states have internal predecessors, (69), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2022-07-23 13:34:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:34:15,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:15,126 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:15,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:15,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-23 13:34:15,339 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:15,340 INFO L85 PathProgramCache]: Analyzing trace with hash 239613636, now seen corresponding path program 1 times [2022-07-23 13:34:15,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:15,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546620080] [2022-07-23 13:34:15,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:15,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 13:34:15,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:15,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546620080] [2022-07-23 13:34:15,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546620080] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:15,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483269154] [2022-07-23 13:34:15,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:15,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:15,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:15,397 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:15,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-23 13:34:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:15,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:15,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:15,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483269154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:15,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:15,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-23 13:34:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776875472] [2022-07-23 13:34:15,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:15,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:15,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:15,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:15,480 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:15,542 INFO L93 Difference]: Finished difference Result 411 states and 523 transitions. [2022-07-23 13:34:15,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:15,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2022-07-23 13:34:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:15,546 INFO L225 Difference]: With dead ends: 411 [2022-07-23 13:34:15,546 INFO L226 Difference]: Without dead ends: 262 [2022-07-23 13:34:15,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:15,547 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 50 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 235 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-07-23 13:34:15,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 212. [2022-07-23 13:34:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 188 states have (on average 1.2819148936170213) internal successors, (241), 197 states have internal predecessors, (241), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 13:34:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 259 transitions. [2022-07-23 13:34:15,569 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 259 transitions. Word has length 53 [2022-07-23 13:34:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:15,569 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 259 transitions. [2022-07-23 13:34:15,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2022-07-23 13:34:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-23 13:34:15,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:15,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:15,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:15,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:15,783 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:15,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1225098171, now seen corresponding path program 1 times [2022-07-23 13:34:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:15,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606608765] [2022-07-23 13:34:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 13:34:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:15,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:15,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606608765] [2022-07-23 13:34:15,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606608765] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:15,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704461592] [2022-07-23 13:34:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:15,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:15,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:15,829 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:15,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-23 13:34:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:15,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:34:15,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:15,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:15,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704461592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:15,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:15,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-23 13:34:15,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652711177] [2022-07-23 13:34:15,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:15,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:15,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:15,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:15,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:15,898 INFO L87 Difference]: Start difference. First operand 212 states and 259 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:15,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:15,959 INFO L93 Difference]: Finished difference Result 385 states and 477 transitions. [2022-07-23 13:34:15,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:34:15,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2022-07-23 13:34:15,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:15,961 INFO L225 Difference]: With dead ends: 385 [2022-07-23 13:34:15,961 INFO L226 Difference]: Without dead ends: 237 [2022-07-23 13:34:15,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:15,962 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 18 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:15,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 337 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-07-23 13:34:15,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 208. [2022-07-23 13:34:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 184 states have (on average 1.2934782608695652) internal successors, (238), 193 states have internal predecessors, (238), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (10), 10 states have call predecessors, (10), 8 states have call successors, (10) [2022-07-23 13:34:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 256 transitions. [2022-07-23 13:34:15,977 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 256 transitions. Word has length 54 [2022-07-23 13:34:15,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:15,977 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 256 transitions. [2022-07-23 13:34:15,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:15,977 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 256 transitions. [2022-07-23 13:34:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:15,982 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:15,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:16,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:16,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:16,195 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:16,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:16,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1756937806, now seen corresponding path program 1 times [2022-07-23 13:34:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:16,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284913404] [2022-07-23 13:34:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:16,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:34:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,386 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:16,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:16,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284913404] [2022-07-23 13:34:16,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284913404] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:16,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:16,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:34:16,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658301818] [2022-07-23 13:34:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:16,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:16,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:16,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:16,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:16,388 INFO L87 Difference]: Start difference. First operand 208 states and 256 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:16,721 INFO L93 Difference]: Finished difference Result 390 states and 475 transitions. [2022-07-23 13:34:16,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 13:34:16,721 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:34:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:16,725 INFO L225 Difference]: With dead ends: 390 [2022-07-23 13:34:16,725 INFO L226 Difference]: Without dead ends: 389 [2022-07-23 13:34:16,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-23 13:34:16,726 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 257 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:16,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 1020 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:34:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-07-23 13:34:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 234. [2022-07-23 13:34:16,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 209 states have (on average 1.291866028708134) internal successors, (270), 217 states have internal predecessors, (270), 8 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (13), 12 states have call predecessors, (13), 8 states have call successors, (13) [2022-07-23 13:34:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 291 transitions. [2022-07-23 13:34:16,749 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 291 transitions. Word has length 55 [2022-07-23 13:34:16,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:16,749 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 291 transitions. [2022-07-23 13:34:16,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 291 transitions. [2022-07-23 13:34:16,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:16,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:16,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:16,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-23 13:34:16,755 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1728682864, now seen corresponding path program 1 times [2022-07-23 13:34:16,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:16,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995065106] [2022-07-23 13:34:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:16,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:34:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:16,887 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:16,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:16,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995065106] [2022-07-23 13:34:16,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995065106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:16,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:16,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-23 13:34:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200911251] [2022-07-23 13:34:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:16,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:34:16,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:16,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:34:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:34:16,889 INFO L87 Difference]: Start difference. First operand 234 states and 291 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:17,134 INFO L93 Difference]: Finished difference Result 429 states and 523 transitions. [2022-07-23 13:34:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 13:34:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:34:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:17,136 INFO L225 Difference]: With dead ends: 429 [2022-07-23 13:34:17,136 INFO L226 Difference]: Without dead ends: 378 [2022-07-23 13:34:17,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:34:17,137 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 249 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:17,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1232 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:34:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-07-23 13:34:17,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 258. [2022-07-23 13:34:17,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 233 states have (on average 1.2746781115879828) internal successors, (297), 240 states have internal predecessors, (297), 8 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-07-23 13:34:17,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 318 transitions. [2022-07-23 13:34:17,151 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 318 transitions. Word has length 55 [2022-07-23 13:34:17,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:17,152 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 318 transitions. [2022-07-23 13:34:17,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:17,152 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 318 transitions. [2022-07-23 13:34:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-23 13:34:17,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:17,153 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:17,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-23 13:34:17,154 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:17,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash -129424594, now seen corresponding path program 1 times [2022-07-23 13:34:17,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:17,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629348949] [2022-07-23 13:34:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:34:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:34:17,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:17,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629348949] [2022-07-23 13:34:17,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629348949] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:17,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553974481] [2022-07-23 13:34:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:17,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:17,292 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:17,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-23 13:34:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:17,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-23 13:34:17,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-23 13:34:17,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:34:17,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553974481] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:17,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-23 13:34:17,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 10] total 21 [2022-07-23 13:34:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436473200] [2022-07-23 13:34:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:17,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 13:34:17,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:17,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 13:34:17,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-07-23 13:34:17,628 INFO L87 Difference]: Start difference. First operand 258 states and 318 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:17,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:17,758 INFO L93 Difference]: Finished difference Result 402 states and 487 transitions. [2022-07-23 13:34:17,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 13:34:17,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2022-07-23 13:34:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:17,760 INFO L225 Difference]: With dead ends: 402 [2022-07-23 13:34:17,760 INFO L226 Difference]: Without dead ends: 291 [2022-07-23 13:34:17,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:34:17,761 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 41 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:17,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 1095 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:17,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-07-23 13:34:17,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 252. [2022-07-23 13:34:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 227 states have (on average 1.2731277533039647) internal successors, (289), 234 states have internal predecessors, (289), 8 states have call successors, (8), 4 states have call predecessors, (8), 7 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-07-23 13:34:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 310 transitions. [2022-07-23 13:34:17,775 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 310 transitions. Word has length 62 [2022-07-23 13:34:17,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:17,775 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 310 transitions. [2022-07-23 13:34:17,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 310 transitions. [2022-07-23 13:34:17,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-23 13:34:17,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:17,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:17,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:18,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:18,003 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:18,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1579288781, now seen corresponding path program 1 times [2022-07-23 13:34:18,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:18,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840441200] [2022-07-23 13:34:18,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:18,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:34:18,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 13:34:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:34:18,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 13:34:18,062 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-23 13:34:18,063 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-23 13:34:18,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-23 13:34:18,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-23 13:34:18,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-23 13:34:18,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-23 13:34:18,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 13:34:18,070 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:18,073 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:34:18,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:34:18 BoogieIcfgContainer [2022-07-23 13:34:18,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:34:18,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:34:18,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:34:18,112 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:34:18,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:02" (3/4) ... [2022-07-23 13:34:18,114 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 13:34:18,114 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:34:18,115 INFO L158 Benchmark]: Toolchain (without parser) took 16612.02ms. Allocated memory was 96.5MB in the beginning and 188.7MB in the end (delta: 92.3MB). Free memory was 62.6MB in the beginning and 122.3MB in the end (delta: -59.7MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,115 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:34:18,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.13ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 100.8MB in the end (delta: -38.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 130.0MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,116 INFO L158 Benchmark]: Boogie Preprocessor took 25.53ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 96.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,116 INFO L158 Benchmark]: RCFGBuilder took 520.10ms. Allocated memory is still 130.0MB. Free memory was 96.7MB in the beginning and 75.1MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,116 INFO L158 Benchmark]: TraceAbstraction took 15690.60ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 74.6MB in the beginning and 123.4MB in the end (delta: -48.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-07-23 13:34:18,117 INFO L158 Benchmark]: Witness Printer took 3.11ms. Allocated memory is still 188.7MB. Free memory was 123.4MB in the beginning and 122.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:34:18,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 53.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.13ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 62.4MB in the beginning and 100.8MB in the end (delta: -38.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 130.0MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.53ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 96.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.10ms. Allocated memory is still 130.0MB. Free memory was 96.7MB in the beginning and 75.1MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15690.60ms. Allocated memory was 130.0MB in the beginning and 188.7MB in the end (delta: 58.7MB). Free memory was 74.6MB in the beginning and 123.4MB in the end (delta: -48.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 3.11ms. Allocated memory is still 188.7MB. Free memory was 123.4MB in the beginning and 122.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; VAL [ea=-126, eb=-1] [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L80] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L251] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L251] zero = base2flt(0, 0) [L252] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L29] COND FALSE !(! m) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L57] COND TRUE 1 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L77] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L77] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447617] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] __retres4 = res VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, __retres4=2147483647, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L80] return (__retres4); VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447617, \result=36028799166447615, __retres4=2147483647, e=-126, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L252] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=36028799166447615, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, res = m | ((unsigned int )(e + 128) << 24U)=33554432, zero=0] [L252] a = base2flt(ma, ea) [L253] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L57] COND TRUE 1 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L78] __retres4 = res VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, __retres4=2147483647, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L80] return (__retres4); VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, \result=2147483647, __retres4=2147483647, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L253] RET, EXPR base2flt(mb, eb) VAL [a=2147483647, base2flt(mb, eb)=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, zero=0] [L253] b = base2flt(mb, eb) [L255] COND FALSE !(a < zero) VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, zero=0] [L258] COND TRUE a > zero [L259] tmp = 1 VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, tmp=1, zero=0] [L263] sa = tmp VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, sa=1, tmp=1, zero=0] [L265] COND FALSE !(b < zero) VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, sa=1, tmp=1, zero=0] [L268] COND TRUE b > zero [L269] tmp___0 = 1 VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, sa=1, tmp=1, tmp___0=1, zero=0] [L273] sb = tmp___0 VAL [a=2147483647, b=2147483647, ea=-126, eb=-1, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L276] CALL addflt(a, b) [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=2147483647, \old(b)=2147483647, a=2147483647, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L94] COND FALSE !(a < b) VAL [\old(a)=2147483647, \old(b)=2147483647, a=2147483647, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L101] COND FALSE !(! b) VAL [\old(a)=2147483647, \old(b)=2147483647, a=2147483647, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L108] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=2147483647, \old(b)=2147483647, a=2147483647, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L109] (int )(a >> 24U) - 128 VAL [\old(a)=2147483647, \old(b)=2147483647, a=2147483647, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 142 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 28, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4403 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4323 mSDsluCounter, 18585 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15009 mSDsCounter, 476 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5048 IncrementalHoareTripleChecker+Invalid, 5524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 476 mSolverCounterUnsat, 3576 mSDtfsCounter, 5048 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1522 GetRequests, 1207 SyntacticMatches, 11 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=26, InterpolantAutomatonStates: 237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 2022 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1743 NumberOfCodeBlocks, 1725 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 2046 ConstructedInterpolants, 0 QuantifiedInterpolants, 5555 SizeOfPredicates, 64 NumberOfNonLiveVariables, 2433 ConjunctsInSsa, 174 ConjunctsInUnsatCore, 55 InterpolantComputations, 20 PerfectInterpolantSequences, 594/743 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-23 13:34:18,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample