./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 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/loop-zilu/benchmark41_conjunctive.i -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 e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:30:39,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:30:39,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:30:39,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:30:39,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:30:39,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:30:39,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:30:39,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:30:39,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:30:39,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:30:39,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:30:39,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:30:39,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:30:39,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:30:39,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:30:39,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:30:39,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:30:39,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:30:39,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:30:39,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:30:39,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:30:39,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:30:39,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:30:39,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:30:39,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:30:39,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:30:39,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:30:39,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:30:39,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:30:39,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:30:39,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:30:39,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:30:39,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:30:39,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:30:39,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:30:39,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:30:39,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:30:39,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:30:39,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:30:39,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:30:39,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:30:39,974 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:30:39,999 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:30:40,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:30:40,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:30:40,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:30:40,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:30:40,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:30:40,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:30:40,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:30:40,003 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:30:40,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:30:40,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:30:40,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:30:40,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:30:40,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:30:40,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:30:40,006 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:30:40,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:30:40,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:30:40,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:30:40,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:30:40,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:30:40,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:30:40,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:30:40,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:30:40,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:30:40,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:30:40,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:30:40,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:30:40,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8c2a2f5606e46c1a328e1728dc6cdf6823e5c50ed56fab8310a8cb7bd30fe62 [2021-12-19 15:30:40,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:30:40,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:30:40,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:30:40,231 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:30:40,232 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:30:40,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2021-12-19 15:30:40,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32f95583/71eac0de2ad44bfda28c1a874baa70c9/FLAGea67d10d5 [2021-12-19 15:30:40,624 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:30:40,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark41_conjunctive.i [2021-12-19 15:30:40,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32f95583/71eac0de2ad44bfda28c1a874baa70c9/FLAGea67d10d5 [2021-12-19 15:30:40,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32f95583/71eac0de2ad44bfda28c1a874baa70c9 [2021-12-19 15:30:40,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:30:40,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:30:40,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:30:40,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:30:40,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:30:40,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126fbce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40, skipping insertion in model container [2021-12-19 15:30:40,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:30:40,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:30:40,804 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/loop-zilu/benchmark41_conjunctive.i[873,886] [2021-12-19 15:30:40,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:30:40,818 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:30:40,828 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/loop-zilu/benchmark41_conjunctive.i[873,886] [2021-12-19 15:30:40,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:30:40,848 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:30:40,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40 WrapperNode [2021-12-19 15:30:40,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:30:40,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:30:40,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:30:40,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:30:40,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,875 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2021-12-19 15:30:40,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:30:40,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:30:40,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:30:40,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:30:40,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:30:40,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:30:40,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:30:40,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:30:40,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (1/1) ... [2021-12-19 15:30:40,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:30:40,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:40,930 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) [2021-12-19 15:30:40,978 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 [2021-12-19 15:30:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:30:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:30:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:30:40,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:30:41,036 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:30:41,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:30:41,179 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:30:41,183 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:30:41,184 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 15:30:41,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:30:41 BoogieIcfgContainer [2021-12-19 15:30:41,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:30:41,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:30:41,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:30:41,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:30:41,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:30:40" (1/3) ... [2021-12-19 15:30:41,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722af9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:30:41, skipping insertion in model container [2021-12-19 15:30:41,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:30:40" (2/3) ... [2021-12-19 15:30:41,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722af9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:30:41, skipping insertion in model container [2021-12-19 15:30:41,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:30:41" (3/3) ... [2021-12-19 15:30:41,200 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark41_conjunctive.i [2021-12-19 15:30:41,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:30:41,219 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-12-19 15:30:41,276 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:30:41,281 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:30:41,282 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-12-19 15:30:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-19 15:30:41,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-19 15:30:41,302 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,309 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-12-19 15:30:41,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301948882] [2021-12-19 15:30:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301948882] [2021-12-19 15:30:41,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301948882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502375724] [2021-12-19 15:30:41,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,470 INFO L87 Difference]: Start difference. First operand has 32 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:41,552 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2021-12-19 15:30:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:30:41,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-12-19 15:30:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:41,560 INFO L225 Difference]: With dead ends: 69 [2021-12-19 15:30:41,560 INFO L226 Difference]: Without dead ends: 40 [2021-12-19 15:30:41,562 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:41,565 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:41,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 64 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:41,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-19 15:30:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2021-12-19 15:30:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2021-12-19 15:30:41,590 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2021-12-19 15:30:41,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:41,590 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2021-12-19 15:30:41,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,590 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2021-12-19 15:30:41,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-19 15:30:41,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-19 15:30:41,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:30:41,592 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-12-19 15:30:41,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552419591] [2021-12-19 15:30:41,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552419591] [2021-12-19 15:30:41,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552419591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449735540] [2021-12-19 15:30:41,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,640 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:41,673 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-12-19 15:30:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:30:41,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-19 15:30:41,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:41,674 INFO L225 Difference]: With dead ends: 28 [2021-12-19 15:30:41,674 INFO L226 Difference]: Without dead ends: 27 [2021-12-19 15:30:41,674 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:41,675 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:41,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 24 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-19 15:30:41,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-19 15:30:41,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-12-19 15:30:41,678 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2021-12-19 15:30:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:41,678 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-12-19 15:30:41,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-12-19 15:30:41,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:30:41,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:41,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:30:41,679 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-12-19 15:30:41,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889895707] [2021-12-19 15:30:41,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889895707] [2021-12-19 15:30:41,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889895707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801128966] [2021-12-19 15:30:41,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,725 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:41,772 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-12-19 15:30:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:30:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 15:30:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:41,773 INFO L225 Difference]: With dead ends: 42 [2021-12-19 15:30:41,773 INFO L226 Difference]: Without dead ends: 41 [2021-12-19 15:30:41,774 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:41,776 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:41,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-12-19 15:30:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2021-12-19 15:30:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2021-12-19 15:30:41,783 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 7 [2021-12-19 15:30:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:41,784 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2021-12-19 15:30:41,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,784 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-12-19 15:30:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-19 15:30:41,785 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:41,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:30:41,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1806982231, now seen corresponding path program 1 times [2021-12-19 15:30:41,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349220993] [2021-12-19 15:30:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349220993] [2021-12-19 15:30:41,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349220993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528915459] [2021-12-19 15:30:41,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,828 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:41,856 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-12-19 15:30:41,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:30:41,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-19 15:30:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:41,857 INFO L225 Difference]: With dead ends: 39 [2021-12-19 15:30:41,857 INFO L226 Difference]: Without dead ends: 38 [2021-12-19 15:30:41,857 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:41,858 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:41,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 40 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-12-19 15:30:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2021-12-19 15:30:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.434782608695652) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-12-19 15:30:41,861 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 7 [2021-12-19 15:30:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:41,862 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-12-19 15:30:41,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,862 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-12-19 15:30:41,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:30:41,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:41,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:30:41,866 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,869 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-12-19 15:30:41,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203753289] [2021-12-19 15:30:41,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203753289] [2021-12-19 15:30:41,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203753289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595138282] [2021-12-19 15:30:41,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,909 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:41,938 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-12-19 15:30:41,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:30:41,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-19 15:30:41,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:41,939 INFO L225 Difference]: With dead ends: 32 [2021-12-19 15:30:41,939 INFO L226 Difference]: Without dead ends: 31 [2021-12-19 15:30:41,940 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:41,940 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:41,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:41,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-19 15:30:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-19 15:30:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.391304347826087) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-12-19 15:30:41,944 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 8 [2021-12-19 15:30:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:41,944 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-12-19 15:30:41,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:41,945 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-12-19 15:30:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-19 15:30:41,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:41,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:41,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-19 15:30:41,945 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash 181874382, now seen corresponding path program 1 times [2021-12-19 15:30:41,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:41,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175361] [2021-12-19 15:30:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:41,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:41,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:41,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175361] [2021-12-19 15:30:41,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:41,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:41,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:41,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380743164] [2021-12-19 15:30:41,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:41,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:41,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:41,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:41,987 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,021 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2021-12-19 15:30:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:30:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-19 15:30:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,022 INFO L225 Difference]: With dead ends: 33 [2021-12-19 15:30:42,022 INFO L226 Difference]: Without dead ends: 32 [2021-12-19 15:30:42,022 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:42,023 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 34 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-19 15:30:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-12-19 15:30:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.375) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-12-19 15:30:42,039 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 8 [2021-12-19 15:30:42,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,039 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-12-19 15:30:42,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-12-19 15:30:42,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 15:30:42,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,040 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-19 15:30:42,040 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2021-12-19 15:30:42,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084454810] [2021-12-19 15:30:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084454810] [2021-12-19 15:30:42,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084454810] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:42,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:42,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:42,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870928316] [2021-12-19 15:30:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:42,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:42,067 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,075 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-12-19 15:30:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:42,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-19 15:30:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,076 INFO L225 Difference]: With dead ends: 32 [2021-12-19 15:30:42,076 INFO L226 Difference]: Without dead ends: 31 [2021-12-19 15:30:42,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:42,077 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 17 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-19 15:30:42,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-19 15:30:42,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2021-12-19 15:30:42,081 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2021-12-19 15:30:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,081 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2021-12-19 15:30:42,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-12-19 15:30:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 15:30:42,081 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-19 15:30:42,082 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1343138617, now seen corresponding path program 1 times [2021-12-19 15:30:42,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587257968] [2021-12-19 15:30:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587257968] [2021-12-19 15:30:42,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587257968] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:42,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:42,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:30:42,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61224348] [2021-12-19 15:30:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:30:42,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:30:42,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:30:42,111 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,136 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-12-19 15:30:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:30:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-19 15:30:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,144 INFO L225 Difference]: With dead ends: 35 [2021-12-19 15:30:42,144 INFO L226 Difference]: Without dead ends: 34 [2021-12-19 15:30:42,144 INFO L932 BasicCegarLoop]: 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 [2021-12-19 15:30:42,145 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 33 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:42,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-12-19 15:30:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2021-12-19 15:30:42,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.32) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2021-12-19 15:30:42,149 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 9 [2021-12-19 15:30:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,149 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2021-12-19 15:30:42,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,150 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2021-12-19 15:30:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-19 15:30:42,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-19 15:30:42,150 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,151 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2021-12-19 15:30:42,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451053019] [2021-12-19 15:30:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451053019] [2021-12-19 15:30:42,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451053019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:42,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:42,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:30:42,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555921912] [2021-12-19 15:30:42,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:30:42,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:30:42,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:42,169 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,178 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-12-19 15:30:42,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:30:42,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-19 15:30:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,191 INFO L225 Difference]: With dead ends: 38 [2021-12-19 15:30:42,192 INFO L226 Difference]: Without dead ends: 37 [2021-12-19 15:30:42,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:30:42,193 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 34 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:42,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-19 15:30:42,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-12-19 15:30:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 34 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2021-12-19 15:30:42,196 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 10 [2021-12-19 15:30:42,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,196 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2021-12-19 15:30:42,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,197 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2021-12-19 15:30:42,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-19 15:30:42,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-19 15:30:42,198 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1312375760, now seen corresponding path program 1 times [2021-12-19 15:30:42,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041713939] [2021-12-19 15:30:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041713939] [2021-12-19 15:30:42,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041713939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:42,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:42,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:30:42,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110081568] [2021-12-19 15:30:42,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:30:42,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:30:42,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:30:42,237 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,273 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-12-19 15:30:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-19 15:30:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-19 15:30:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,274 INFO L225 Difference]: With dead ends: 37 [2021-12-19 15:30:42,274 INFO L226 Difference]: Without dead ends: 30 [2021-12-19 15:30:42,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:30:42,275 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 31 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-19 15:30:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-12-19 15:30:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-12-19 15:30:42,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 10 [2021-12-19 15:30:42,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,278 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-12-19 15:30:42,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,278 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-12-19 15:30:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-19 15:30:42,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,278 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-19 15:30:42,279 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1588573389, now seen corresponding path program 1 times [2021-12-19 15:30:42,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384699968] [2021-12-19 15:30:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384699968] [2021-12-19 15:30:42,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384699968] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:42,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048510260] [2021-12-19 15:30:42,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:42,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:42,344 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) [2021-12-19 15:30:42,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:30:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:30:42,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:42,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048510260] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:42,506 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:42,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-19 15:30:42,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141389917] [2021-12-19 15:30:42,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-19 15:30:42,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-19 15:30:42,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-19 15:30:42,514 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:42,606 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2021-12-19 15:30:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 15:30:42,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-19 15:30:42,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:42,609 INFO L225 Difference]: With dead ends: 82 [2021-12-19 15:30:42,615 INFO L226 Difference]: Without dead ends: 81 [2021-12-19 15:30:42,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:30:42,616 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 54 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:42,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 73 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-19 15:30:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 46. [2021-12-19 15:30:42,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.358974358974359) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-12-19 15:30:42,633 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2021-12-19 15:30:42,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:42,633 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-12-19 15:30:42,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2021-12-19 15:30:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-19 15:30:42,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:42,634 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:42,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:42,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-19 15:30:42,847 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:42,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1905635147, now seen corresponding path program 1 times [2021-12-19 15:30:42,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:42,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283342485] [2021-12-19 15:30:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:42,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283342485] [2021-12-19 15:30:42,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283342485] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:42,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457547618] [2021-12-19 15:30:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:42,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:42,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:42,896 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) [2021-12-19 15:30:42,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:30:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:42,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 15:30:42,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:42,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457547618] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:42,988 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:42,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-19 15:30:42,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563270851] [2021-12-19 15:30:42,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:42,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-19 15:30:42,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:42,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-19 15:30:42,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-19 15:30:42,990 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:43,088 INFO L93 Difference]: Finished difference Result 82 states and 84 transitions. [2021-12-19 15:30:43,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 15:30:43,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-19 15:30:43,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:43,088 INFO L225 Difference]: With dead ends: 82 [2021-12-19 15:30:43,088 INFO L226 Difference]: Without dead ends: 81 [2021-12-19 15:30:43,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:30:43,089 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 50 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:43,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 69 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:43,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-12-19 15:30:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2021-12-19 15:30:43,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 47 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2021-12-19 15:30:43,092 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 14 [2021-12-19 15:30:43,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:43,092 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2021-12-19 15:30:43,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,093 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2021-12-19 15:30:43,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-19 15:30:43,093 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:43,093 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:43,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:43,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-19 15:30:43,308 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:43,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1905680795, now seen corresponding path program 1 times [2021-12-19 15:30:43,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:43,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269602901] [2021-12-19 15:30:43,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:43,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:43,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269602901] [2021-12-19 15:30:43,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269602901] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742661209] [2021-12-19 15:30:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:43,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:43,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:43,336 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) [2021-12-19 15:30:43,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:30:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:43,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-19 15:30:43,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:43,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:43,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742661209] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:43,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:43,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2021-12-19 15:30:43,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604330887] [2021-12-19 15:30:43,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:43,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-19 15:30:43,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:43,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-19 15:30:43,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-12-19 15:30:43,529 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:43,627 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2021-12-19 15:30:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-19 15:30:43,628 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-19 15:30:43,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:43,628 INFO L225 Difference]: With dead ends: 62 [2021-12-19 15:30:43,628 INFO L226 Difference]: Without dead ends: 61 [2021-12-19 15:30:43,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2021-12-19 15:30:43,629 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:43,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:43,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-12-19 15:30:43,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 51. [2021-12-19 15:30:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2021-12-19 15:30:43,633 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 14 [2021-12-19 15:30:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:43,633 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2021-12-19 15:30:43,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2021-12-19 15:30:43,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-19 15:30:43,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:43,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:43,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:43,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:43,839 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:43,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:43,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1053437568, now seen corresponding path program 1 times [2021-12-19 15:30:43,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:43,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873483363] [2021-12-19 15:30:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:43,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:43,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:43,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873483363] [2021-12-19 15:30:43,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873483363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:43,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:43,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-19 15:30:43,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350490778] [2021-12-19 15:30:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:43,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-19 15:30:43,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-19 15:30:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:30:43,891 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:43,932 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2021-12-19 15:30:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-19 15:30:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-19 15:30:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:43,933 INFO L225 Difference]: With dead ends: 51 [2021-12-19 15:30:43,933 INFO L226 Difference]: Without dead ends: 50 [2021-12-19 15:30:43,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-12-19 15:30:43,933 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 39 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:43,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 42 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:43,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-19 15:30:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-12-19 15:30:43,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 44 states have (on average 1.25) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2021-12-19 15:30:43,936 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 15 [2021-12-19 15:30:43,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:43,937 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2021-12-19 15:30:43,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,937 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2021-12-19 15:30:43,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-19 15:30:43,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:43,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:43,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-19 15:30:43,938 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:43,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:43,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1703173689, now seen corresponding path program 1 times [2021-12-19 15:30:43,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:43,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528163779] [2021-12-19 15:30:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:43,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 15:30:43,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:43,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528163779] [2021-12-19 15:30:43,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528163779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:30:43,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:30:43,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-19 15:30:43,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099897198] [2021-12-19 15:30:43,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:43,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-19 15:30:43,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:43,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 15:30:43,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:30:43,968 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:43,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:43,998 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2021-12-19 15:30:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:30:43,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-12-19 15:30:43,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:43,999 INFO L225 Difference]: With dead ends: 50 [2021-12-19 15:30:43,999 INFO L226 Difference]: Without dead ends: 49 [2021-12-19 15:30:43,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-19 15:30:44,000 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:44,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 12 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-12-19 15:30:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-12-19 15:30:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 48 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2021-12-19 15:30:44,003 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 16 [2021-12-19 15:30:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:44,003 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2021-12-19 15:30:44,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2021-12-19 15:30:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-19 15:30:44,004 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:44,004 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-19 15:30:44,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-19 15:30:44,004 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:44,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash 101107939, now seen corresponding path program 1 times [2021-12-19 15:30:44,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:44,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768937410] [2021-12-19 15:30:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:44,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:44,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768937410] [2021-12-19 15:30:44,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768937410] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:44,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160829439] [2021-12-19 15:30:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:44,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:44,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:44,023 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) [2021-12-19 15:30:44,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:30:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:44,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 15:30:44,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160829439] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:44,111 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:44,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-19 15:30:44,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229176610] [2021-12-19 15:30:44,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:44,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-19 15:30:44,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:44,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 15:30:44,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:30:44,113 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:44,134 INFO L93 Difference]: Finished difference Result 72 states and 74 transitions. [2021-12-19 15:30:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:30:44,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-19 15:30:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:44,135 INFO L225 Difference]: With dead ends: 72 [2021-12-19 15:30:44,135 INFO L226 Difference]: Without dead ends: 71 [2021-12-19 15:30:44,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:30:44,136 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 29 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:44,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 65 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-19 15:30:44,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2021-12-19 15:30:44,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2021-12-19 15:30:44,139 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 17 [2021-12-19 15:30:44,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:44,139 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-12-19 15:30:44,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2021-12-19 15:30:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-19 15:30:44,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:44,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:44,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:44,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-19 15:30:44,350 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1258776734, now seen corresponding path program 1 times [2021-12-19 15:30:44,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:44,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104998881] [2021-12-19 15:30:44,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:44,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:44,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104998881] [2021-12-19 15:30:44,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104998881] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:44,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764281788] [2021-12-19 15:30:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:44,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:44,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:44,405 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) [2021-12-19 15:30:44,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 15:30:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:44,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-19 15:30:44,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 15:30:44,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764281788] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:44,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-19 15:30:44,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 16 [2021-12-19 15:30:44,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825912306] [2021-12-19 15:30:44,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:30:44,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-19 15:30:44,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:44,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-19 15:30:44,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2021-12-19 15:30:44,633 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:44,677 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2021-12-19 15:30:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-19 15:30:44,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-19 15:30:44,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:44,678 INFO L225 Difference]: With dead ends: 52 [2021-12-19 15:30:44,678 INFO L226 Difference]: Without dead ends: 45 [2021-12-19 15:30:44,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2021-12-19 15:30:44,679 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:44,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-19 15:30:44,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-12-19 15:30:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 44 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2021-12-19 15:30:44,681 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 17 [2021-12-19 15:30:44,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:44,681 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2021-12-19 15:30:44,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:44,681 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2021-12-19 15:30:44,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-19 15:30:44,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:44,681 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:44,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:44,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-19 15:30:44,902 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:44,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:44,902 INFO L85 PathProgramCache]: Analyzing trace with hash -548396507, now seen corresponding path program 2 times [2021-12-19 15:30:44,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:44,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391820646] [2021-12-19 15:30:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:44,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:44,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391820646] [2021-12-19 15:30:44,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391820646] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:44,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508378716] [2021-12-19 15:30:44,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:30:44,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:44,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:44,962 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) [2021-12-19 15:30:44,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 15:30:44,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:30:44,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:44,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-19 15:30:44,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:45,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:45,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508378716] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:45,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:45,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2021-12-19 15:30:45,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915166661] [2021-12-19 15:30:45,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:45,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-19 15:30:45,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:45,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-19 15:30:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2021-12-19 15:30:45,285 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:45,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:45,460 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2021-12-19 15:30:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-19 15:30:45,460 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-19 15:30:45,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:45,460 INFO L225 Difference]: With dead ends: 82 [2021-12-19 15:30:45,460 INFO L226 Difference]: Without dead ends: 69 [2021-12-19 15:30:45,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2021-12-19 15:30:45,462 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 77 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:45,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 120 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-19 15:30:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 60. [2021-12-19 15:30:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 59 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2021-12-19 15:30:45,464 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 28 [2021-12-19 15:30:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:45,464 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2021-12-19 15:30:45,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 31 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2021-12-19 15:30:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-19 15:30:45,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:45,465 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-19 15:30:45,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-19 15:30:45,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-19 15:30:45,665 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1060243931, now seen corresponding path program 2 times [2021-12-19 15:30:45,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:45,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911831099] [2021-12-19 15:30:45,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:45,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:45,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:45,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911831099] [2021-12-19 15:30:45,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911831099] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:45,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595605128] [2021-12-19 15:30:45,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:30:45,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:45,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:45,755 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) [2021-12-19 15:30:45,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 15:30:45,782 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:30:45,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:45,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:30:45,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:45,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:45,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595605128] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:45,960 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:45,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-12-19 15:30:45,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021180642] [2021-12-19 15:30:45,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:45,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-19 15:30:45,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:45,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-19 15:30:45,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-12-19 15:30:45,961 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:46,081 INFO L93 Difference]: Finished difference Result 106 states and 111 transitions. [2021-12-19 15:30:46,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-19 15:30:46,081 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-12-19 15:30:46,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:46,081 INFO L225 Difference]: With dead ends: 106 [2021-12-19 15:30:46,081 INFO L226 Difference]: Without dead ends: 105 [2021-12-19 15:30:46,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2021-12-19 15:30:46,082 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 109 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:46,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 103 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-19 15:30:46,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 82. [2021-12-19 15:30:46,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 81 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2021-12-19 15:30:46,085 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 33 [2021-12-19 15:30:46,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:46,085 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2021-12-19 15:30:46,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 22 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,085 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2021-12-19 15:30:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-19 15:30:46,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:46,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-19 15:30:46,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:46,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:46,305 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:46,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:46,305 INFO L85 PathProgramCache]: Analyzing trace with hash -987166937, now seen corresponding path program 2 times [2021-12-19 15:30:46,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:46,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062346921] [2021-12-19 15:30:46,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:46,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:46,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:46,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062346921] [2021-12-19 15:30:46,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062346921] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:46,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937992857] [2021-12-19 15:30:46,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:30:46,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:46,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:46,379 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) [2021-12-19 15:30:46,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 15:30:46,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:30:46,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:46,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-19 15:30:46,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:46,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:46,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937992857] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:46,608 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:46,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-12-19 15:30:46,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308935946] [2021-12-19 15:30:46,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:46,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-19 15:30:46,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-19 15:30:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-12-19 15:30:46,609 INFO L87 Difference]: Start difference. First operand 82 states and 95 transitions. Second operand has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:46,726 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2021-12-19 15:30:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-19 15:30:46,726 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-12-19 15:30:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:46,727 INFO L225 Difference]: With dead ends: 103 [2021-12-19 15:30:46,727 INFO L226 Difference]: Without dead ends: 102 [2021-12-19 15:30:46,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2021-12-19 15:30:46,728 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 93 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:46,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 126 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-12-19 15:30:46,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 84. [2021-12-19 15:30:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.15) internal successors, (92), 83 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2021-12-19 15:30:46,731 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 35 [2021-12-19 15:30:46,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:46,731 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2021-12-19 15:30:46,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.238095238095238) internal successors, (68), 22 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:46,731 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2021-12-19 15:30:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-19 15:30:46,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:46,732 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2021-12-19 15:30:46,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:46,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:46,948 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:46,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:46,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1049090767, now seen corresponding path program 2 times [2021-12-19 15:30:46,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:46,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642124773] [2021-12-19 15:30:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:46,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:46,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:46,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642124773] [2021-12-19 15:30:46,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642124773] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:46,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604950556] [2021-12-19 15:30:46,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:30:46,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:46,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:46,981 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) [2021-12-19 15:30:46,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-19 15:30:47,009 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:30:47,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:47,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:30:47,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:47,057 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:47,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:47,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604950556] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:47,126 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:47,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-19 15:30:47,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090504227] [2021-12-19 15:30:47,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:47,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-19 15:30:47,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:47,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-19 15:30:47,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:30:47,127 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:47,146 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2021-12-19 15:30:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-19 15:30:47,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-12-19 15:30:47,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:47,147 INFO L225 Difference]: With dead ends: 100 [2021-12-19 15:30:47,147 INFO L226 Difference]: Without dead ends: 99 [2021-12-19 15:30:47,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:30:47,148 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:47,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 105 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-19 15:30:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2021-12-19 15:30:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 86 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 90 transitions. [2021-12-19 15:30:47,150 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 90 transitions. Word has length 38 [2021-12-19 15:30:47,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:47,151 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 90 transitions. [2021-12-19 15:30:47,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 90 transitions. [2021-12-19 15:30:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-19 15:30:47,151 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:47,151 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:47,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:47,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:47,370 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:47,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:47,371 INFO L85 PathProgramCache]: Analyzing trace with hash -882607707, now seen corresponding path program 3 times [2021-12-19 15:30:47,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:47,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466283570] [2021-12-19 15:30:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:47,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:47,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:47,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466283570] [2021-12-19 15:30:47,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466283570] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:47,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991543067] [2021-12-19 15:30:47,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:30:47,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:47,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:47,493 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) [2021-12-19 15:30:47,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-19 15:30:47,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-19 15:30:47,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:47,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-19 15:30:47,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:47,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:48,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991543067] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:48,346 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:48,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 62 [2021-12-19 15:30:48,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304725971] [2021-12-19 15:30:48,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:48,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-12-19 15:30:48,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:48,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-12-19 15:30:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=3315, Unknown=0, NotChecked=0, Total=3906 [2021-12-19 15:30:48,348 INFO L87 Difference]: Start difference. First operand 87 states and 90 transitions. Second operand has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:48,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:48,870 INFO L93 Difference]: Finished difference Result 156 states and 163 transitions. [2021-12-19 15:30:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-12-19 15:30:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-12-19 15:30:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:48,872 INFO L225 Difference]: With dead ends: 156 [2021-12-19 15:30:48,872 INFO L226 Difference]: Without dead ends: 131 [2021-12-19 15:30:48,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3544 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1476, Invalid=7454, Unknown=0, NotChecked=0, Total=8930 [2021-12-19 15:30:48,875 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 251 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:48,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 190 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:30:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-12-19 15:30:48,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2021-12-19 15:30:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 112 states have (on average 1.1428571428571428) internal successors, (128), 115 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:48,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2021-12-19 15:30:48,878 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 56 [2021-12-19 15:30:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:48,878 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2021-12-19 15:30:48,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.6451612903225805) internal successors, (164), 63 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2021-12-19 15:30:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-19 15:30:48,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:48,880 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-19 15:30:48,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:49,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-19 15:30:49,091 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:49,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1200827675, now seen corresponding path program 3 times [2021-12-19 15:30:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:49,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200203313] [2021-12-19 15:30:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:49,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:49,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:49,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200203313] [2021-12-19 15:30:49,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200203313] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:49,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701878077] [2021-12-19 15:30:49,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:30:49,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:49,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:49,288 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) [2021-12-19 15:30:49,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-19 15:30:49,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-19 15:30:49,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:49,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-19 15:30:49,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:49,469 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:49,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:49,924 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:49,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701878077] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:49,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:49,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2021-12-19 15:30:49,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981075519] [2021-12-19 15:30:49,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:49,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-19 15:30:49,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:49,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-19 15:30:49,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2021-12-19 15:30:49,926 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:50,278 INFO L93 Difference]: Finished difference Result 218 states and 229 transitions. [2021-12-19 15:30:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-19 15:30:50,279 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-19 15:30:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:50,279 INFO L225 Difference]: With dead ends: 218 [2021-12-19 15:30:50,279 INFO L226 Difference]: Without dead ends: 217 [2021-12-19 15:30:50,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2021-12-19 15:30:50,284 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 283 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:50,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 235 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:50,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-12-19 15:30:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 166. [2021-12-19 15:30:50,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.2037037037037037) internal successors, (195), 165 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 195 transitions. [2021-12-19 15:30:50,292 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 195 transitions. Word has length 75 [2021-12-19 15:30:50,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:50,293 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 195 transitions. [2021-12-19 15:30:50,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.2888888888888888) internal successors, (148), 46 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:50,293 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 195 transitions. [2021-12-19 15:30:50,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-19 15:30:50,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:50,303 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-19 15:30:50,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:50,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-19 15:30:50,515 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:50,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1350808551, now seen corresponding path program 3 times [2021-12-19 15:30:50,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:50,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141768362] [2021-12-19 15:30:50,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:50,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:50,702 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:50,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:50,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141768362] [2021-12-19 15:30:50,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141768362] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:50,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371687808] [2021-12-19 15:30:50,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:30:50,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:50,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:50,704 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) [2021-12-19 15:30:50,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-19 15:30:50,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-19 15:30:50,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:50,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-19 15:30:50,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:50,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:51,327 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:51,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371687808] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:51,327 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:51,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2021-12-19 15:30:51,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584479809] [2021-12-19 15:30:51,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:51,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-19 15:30:51,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:51,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-19 15:30:51,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2021-12-19 15:30:51,329 INFO L87 Difference]: Start difference. First operand 166 states and 195 transitions. Second operand has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:51,700 INFO L93 Difference]: Finished difference Result 209 states and 220 transitions. [2021-12-19 15:30:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-19 15:30:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-19 15:30:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:51,701 INFO L225 Difference]: With dead ends: 209 [2021-12-19 15:30:51,701 INFO L226 Difference]: Without dead ends: 208 [2021-12-19 15:30:51,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2021-12-19 15:30:51,702 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 247 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:51,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 178 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:30:51,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-12-19 15:30:51,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 168. [2021-12-19 15:30:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 167 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 186 transitions. [2021-12-19 15:30:51,706 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 186 transitions. Word has length 77 [2021-12-19 15:30:51,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:51,706 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 186 transitions. [2021-12-19 15:30:51,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.3777777777777778) internal successors, (152), 46 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 186 transitions. [2021-12-19 15:30:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-19 15:30:51,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:51,708 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1] [2021-12-19 15:30:51,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-19 15:30:51,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-19 15:30:51,924 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1905966991, now seen corresponding path program 3 times [2021-12-19 15:30:51,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:51,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165878265] [2021-12-19 15:30:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:51,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:52,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:52,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165878265] [2021-12-19 15:30:52,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165878265] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:52,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068935665] [2021-12-19 15:30:52,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:30:52,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:52,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:52,012 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) [2021-12-19 15:30:52,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-19 15:30:52,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-19 15:30:52,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:52,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:30:52,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:52,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:52,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068935665] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:52,441 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:52,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-19 15:30:52,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402342089] [2021-12-19 15:30:52,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:52,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-19 15:30:52,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-19 15:30:52,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-19 15:30:52,443 INFO L87 Difference]: Start difference. First operand 168 states and 186 transitions. Second operand has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:52,484 INFO L93 Difference]: Finished difference Result 200 states and 211 transitions. [2021-12-19 15:30:52,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-19 15:30:52,485 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-19 15:30:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:52,485 INFO L225 Difference]: With dead ends: 200 [2021-12-19 15:30:52,485 INFO L226 Difference]: Without dead ends: 199 [2021-12-19 15:30:52,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-19 15:30:52,486 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 68 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:52,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 175 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:30:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-12-19 15:30:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 171. [2021-12-19 15:30:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 167 states have (on average 1.0658682634730539) internal successors, (178), 170 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2021-12-19 15:30:52,489 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 80 [2021-12-19 15:30:52,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:52,489 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2021-12-19 15:30:52,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.869565217391305) internal successors, (158), 24 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2021-12-19 15:30:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-19 15:30:52,490 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:52,490 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:30:52,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-19 15:30:52,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-12-19 15:30:52,707 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:52,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:52,707 INFO L85 PathProgramCache]: Analyzing trace with hash 423258277, now seen corresponding path program 4 times [2021-12-19 15:30:52,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:52,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328063535] [2021-12-19 15:30:52,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:52,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:53,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:53,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328063535] [2021-12-19 15:30:53,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328063535] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:53,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269232992] [2021-12-19 15:30:53,095 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:30:53,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:53,096 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) [2021-12-19 15:30:53,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-19 15:30:53,154 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:30:53,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:53,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 63 conjunts are in the unsatisfiable core [2021-12-19 15:30:53,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:54,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:55,314 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:55,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269232992] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:55,315 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:55,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 47, 47] total 126 [2021-12-19 15:30:55,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477824707] [2021-12-19 15:30:55,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:55,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2021-12-19 15:30:55,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:55,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2021-12-19 15:30:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2267, Invalid=13735, Unknown=0, NotChecked=0, Total=16002 [2021-12-19 15:30:55,319 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:30:56,886 INFO L93 Difference]: Finished difference Result 304 states and 319 transitions. [2021-12-19 15:30:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-12-19 15:30:56,886 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2021-12-19 15:30:56,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:30:56,887 INFO L225 Difference]: With dead ends: 304 [2021-12-19 15:30:56,887 INFO L226 Difference]: Without dead ends: 255 [2021-12-19 15:30:56,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16296 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5896, Invalid=31934, Unknown=0, NotChecked=0, Total=37830 [2021-12-19 15:30:56,891 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 558 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 15:30:56,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 241 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 15:30:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-12-19 15:30:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 228. [2021-12-19 15:30:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.125) internal successors, (252), 227 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:56,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2021-12-19 15:30:56,896 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 112 [2021-12-19 15:30:56,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:30:56,896 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2021-12-19 15:30:56,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 2.634920634920635) internal successors, (332), 127 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:30:56,896 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2021-12-19 15:30:56,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-19 15:30:56,897 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:30:56,897 INFO L514 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-19 15:30:56,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-19 15:30:57,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:57,107 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:30:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:30:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1562985371, now seen corresponding path program 4 times [2021-12-19 15:30:57,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:30:57,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695518462] [2021-12-19 15:30:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:30:57,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:30:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:30:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:57,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:30:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695518462] [2021-12-19 15:30:57,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695518462] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:30:57,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697883298] [2021-12-19 15:30:57,674 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:30:57,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:30:57,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:30:57,675 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) [2021-12-19 15:30:57,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-19 15:30:57,733 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:30:57,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:30:57,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-19 15:30:57,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:30:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:57,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:30:59,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:30:59,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697883298] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:30:59,382 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:30:59,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2021-12-19 15:30:59,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058217687] [2021-12-19 15:30:59,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:30:59,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-12-19 15:30:59,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:30:59,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-12-19 15:30:59,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2021-12-19 15:30:59,385 INFO L87 Difference]: Start difference. First operand 228 states and 252 transitions. Second operand has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:00,524 INFO L93 Difference]: Finished difference Result 442 states and 465 transitions. [2021-12-19 15:31:00,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-19 15:31:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-12-19 15:31:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:00,526 INFO L225 Difference]: With dead ends: 442 [2021-12-19 15:31:00,526 INFO L226 Difference]: Without dead ends: 441 [2021-12-19 15:31:00,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2021-12-19 15:31:00,528 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 896 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:00,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 355 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:31:00,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-12-19 15:31:00,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 334. [2021-12-19 15:31:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 330 states have (on average 1.196969696969697) internal successors, (395), 333 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 395 transitions. [2021-12-19 15:31:00,534 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 395 transitions. Word has length 159 [2021-12-19 15:31:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:00,534 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 395 transitions. [2021-12-19 15:31:00,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.3978494623655915) internal successors, (316), 94 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 395 transitions. [2021-12-19 15:31:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-19 15:31:00,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:00,535 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-19 15:31:00,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-12-19 15:31:00,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-19 15:31:00,745 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1209613671, now seen corresponding path program 4 times [2021-12-19 15:31:00,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:00,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857081229] [2021-12-19 15:31:00,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:00,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:01,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:01,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857081229] [2021-12-19 15:31:01,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857081229] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:01,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611449856] [2021-12-19 15:31:01,333 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:31:01,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:01,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:01,335 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) [2021-12-19 15:31:01,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-19 15:31:01,395 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:31:01,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:01,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-19 15:31:01,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:01,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:03,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:03,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611449856] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:03,094 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:03,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2021-12-19 15:31:03,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976946213] [2021-12-19 15:31:03,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:03,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-12-19 15:31:03,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:03,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-12-19 15:31:03,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2021-12-19 15:31:03,096 INFO L87 Difference]: Start difference. First operand 334 states and 395 transitions. Second operand has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:04,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:04,226 INFO L93 Difference]: Finished difference Result 421 states and 444 transitions. [2021-12-19 15:31:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-19 15:31:04,227 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-12-19 15:31:04,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:04,228 INFO L225 Difference]: With dead ends: 421 [2021-12-19 15:31:04,228 INFO L226 Difference]: Without dead ends: 420 [2021-12-19 15:31:04,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2021-12-19 15:31:04,229 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 587 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:04,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 312 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:31:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2021-12-19 15:31:04,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 336. [2021-12-19 15:31:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 332 states have (on average 1.1265060240963856) internal successors, (374), 335 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:04,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 374 transitions. [2021-12-19 15:31:04,236 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 374 transitions. Word has length 161 [2021-12-19 15:31:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:04,236 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 374 transitions. [2021-12-19 15:31:04,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 3.4408602150537635) internal successors, (320), 94 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 374 transitions. [2021-12-19 15:31:04,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-19 15:31:04,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:04,238 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1] [2021-12-19 15:31:04,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-19 15:31:04,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-19 15:31:04,454 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:04,455 INFO L85 PathProgramCache]: Analyzing trace with hash 825313009, now seen corresponding path program 4 times [2021-12-19 15:31:04,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:04,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399237462] [2021-12-19 15:31:04,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:04,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:04,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399237462] [2021-12-19 15:31:04,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399237462] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387956356] [2021-12-19 15:31:04,718 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:31:04,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:04,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:04,719 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) [2021-12-19 15:31:04,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-19 15:31:04,803 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:31:04,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:04,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-19 15:31:04,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:04,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:04,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 0 proven. 1771 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:05,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387956356] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:05,698 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:05,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-19 15:31:05,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661312365] [2021-12-19 15:31:05,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:05,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-19 15:31:05,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:05,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-19 15:31:05,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-19 15:31:05,700 INFO L87 Difference]: Start difference. First operand 336 states and 374 transitions. Second operand has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:05,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:05,808 INFO L93 Difference]: Finished difference Result 400 states and 423 transitions. [2021-12-19 15:31:05,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-19 15:31:05,808 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-12-19 15:31:05,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:05,809 INFO L225 Difference]: With dead ends: 400 [2021-12-19 15:31:05,809 INFO L226 Difference]: Without dead ends: 399 [2021-12-19 15:31:05,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-19 15:31:05,810 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 116 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:05,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 335 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:31:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2021-12-19 15:31:05,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 339. [2021-12-19 15:31:05,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 335 states have (on average 1.0567164179104478) internal successors, (354), 338 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 354 transitions. [2021-12-19 15:31:05,816 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 354 transitions. Word has length 164 [2021-12-19 15:31:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:05,816 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 354 transitions. [2021-12-19 15:31:05,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.9361702127659575) internal successors, (326), 48 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 354 transitions. [2021-12-19 15:31:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-19 15:31:05,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:05,817 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:31:05,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-19 15:31:06,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-19 15:31:06,034 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1746618021, now seen corresponding path program 5 times [2021-12-19 15:31:06,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:06,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688132101] [2021-12-19 15:31:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:06,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:07,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:07,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688132101] [2021-12-19 15:31:07,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688132101] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:07,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364584685] [2021-12-19 15:31:07,073 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:31:07,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:07,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:07,074 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) [2021-12-19 15:31:07,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-19 15:31:07,322 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-12-19 15:31:07,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:07,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 127 conjunts are in the unsatisfiable core [2021-12-19 15:31:07,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:10,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:14,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3286 backedges. 0 proven. 3286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:14,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364584685] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:14,028 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:14,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 95, 95] total 254 [2021-12-19 15:31:14,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945119118] [2021-12-19 15:31:14,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:14,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 255 states [2021-12-19 15:31:14,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:14,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 255 interpolants. [2021-12-19 15:31:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8883, Invalid=55887, Unknown=0, NotChecked=0, Total=64770 [2021-12-19 15:31:14,033 INFO L87 Difference]: Start difference. First operand 339 states and 354 transitions. Second operand has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:19,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:19,281 INFO L93 Difference]: Finished difference Result 600 states and 631 transitions. [2021-12-19 15:31:19,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2021-12-19 15:31:19,281 INFO L78 Accepts]: Start accepts. Automaton has has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 224 [2021-12-19 15:31:19,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:19,282 INFO L225 Difference]: With dead ends: 600 [2021-12-19 15:31:19,283 INFO L226 Difference]: Without dead ends: 503 [2021-12-19 15:31:19,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69640 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=23568, Invalid=132062, Unknown=0, NotChecked=0, Total=155630 [2021-12-19 15:31:19,291 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 1414 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:19,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1414 Valid, 409 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-19 15:31:19,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-12-19 15:31:19,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 452. [2021-12-19 15:31:19,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 448 states have (on average 1.1160714285714286) internal successors, (500), 451 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 500 transitions. [2021-12-19 15:31:19,320 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 500 transitions. Word has length 224 [2021-12-19 15:31:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:19,320 INFO L470 AbstractCegarLoop]: Abstraction has 452 states and 500 transitions. [2021-12-19 15:31:19,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 255 states, 254 states have (on average 2.62992125984252) internal successors, (668), 255 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 500 transitions. [2021-12-19 15:31:19,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-19 15:31:19,322 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:19,322 INFO L514 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-19 15:31:19,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-19 15:31:19,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:19,534 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:19,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:19,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1361792869, now seen corresponding path program 5 times [2021-12-19 15:31:19,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:19,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605480062] [2021-12-19 15:31:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:19,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:21,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:21,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605480062] [2021-12-19 15:31:21,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605480062] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:21,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827659979] [2021-12-19 15:31:21,696 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:31:21,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:21,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:21,697 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) [2021-12-19 15:31:21,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-19 15:31:21,990 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-19 15:31:21,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:21,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-19 15:31:21,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:22,489 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:22,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:27,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827659979] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:27,716 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:27,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2021-12-19 15:31:27,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981432659] [2021-12-19 15:31:27,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:27,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2021-12-19 15:31:27,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:27,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2021-12-19 15:31:27,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2021-12-19 15:31:27,720 INFO L87 Difference]: Start difference. First operand 452 states and 500 transitions. Second operand has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:32,053 INFO L93 Difference]: Finished difference Result 890 states and 937 transitions. [2021-12-19 15:31:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-12-19 15:31:32,053 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327 [2021-12-19 15:31:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:32,055 INFO L225 Difference]: With dead ends: 890 [2021-12-19 15:31:32,055 INFO L226 Difference]: Without dead ends: 889 [2021-12-19 15:31:32,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 841 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2021-12-19 15:31:32,059 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 1841 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:32,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 617 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 15:31:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-12-19 15:31:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 670. [2021-12-19 15:31:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 666 states have (on average 1.1936936936936937) internal successors, (795), 669 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 795 transitions. [2021-12-19 15:31:32,070 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 795 transitions. Word has length 327 [2021-12-19 15:31:32,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:32,070 INFO L470 AbstractCegarLoop]: Abstraction has 670 states and 795 transitions. [2021-12-19 15:31:32,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4497354497354498) internal successors, (652), 190 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:32,070 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 795 transitions. [2021-12-19 15:31:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-19 15:31:32,071 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:32,072 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-19 15:31:32,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-19 15:31:32,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:32,289 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:32,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1282076569, now seen corresponding path program 5 times [2021-12-19 15:31:32,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:32,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703724022] [2021-12-19 15:31:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:32,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:34,441 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:34,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703724022] [2021-12-19 15:31:34,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703724022] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363254826] [2021-12-19 15:31:34,442 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:31:34,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:34,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:34,443 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:31:34,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-19 15:31:34,723 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-19 15:31:34,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:34,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 95 conjunts are in the unsatisfiable core [2021-12-19 15:31:34,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:35,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:40,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363254826] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:40,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:40,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2021-12-19 15:31:40,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262922317] [2021-12-19 15:31:40,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:40,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2021-12-19 15:31:40,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:40,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2021-12-19 15:31:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2021-12-19 15:31:40,338 INFO L87 Difference]: Start difference. First operand 670 states and 795 transitions. Second operand has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:44,828 INFO L93 Difference]: Finished difference Result 845 states and 892 transitions. [2021-12-19 15:31:44,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-12-19 15:31:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2021-12-19 15:31:44,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:44,830 INFO L225 Difference]: With dead ends: 845 [2021-12-19 15:31:44,830 INFO L226 Difference]: Without dead ends: 844 [2021-12-19 15:31:44,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2021-12-19 15:31:44,834 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 1404 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:44,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 559 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 15:31:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-12-19 15:31:44,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 672. [2021-12-19 15:31:44,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 668 states have (on average 1.122754491017964) internal successors, (750), 671 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 750 transitions. [2021-12-19 15:31:44,845 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 750 transitions. Word has length 329 [2021-12-19 15:31:44,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:44,846 INFO L470 AbstractCegarLoop]: Abstraction has 672 states and 750 transitions. [2021-12-19 15:31:44,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 3.4708994708994707) internal successors, (656), 190 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:44,846 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 750 transitions. [2021-12-19 15:31:44,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-12-19 15:31:44,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:44,848 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1] [2021-12-19 15:31:44,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-12-19 15:31:45,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-12-19 15:31:45,064 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:45,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:45,064 INFO L85 PathProgramCache]: Analyzing trace with hash 801149937, now seen corresponding path program 5 times [2021-12-19 15:31:45,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:45,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211148204] [2021-12-19 15:31:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:45,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:45,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:45,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:45,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211148204] [2021-12-19 15:31:45,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211148204] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:45,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535584324] [2021-12-19 15:31:45,904 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:31:45,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:45,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:45,905 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:31:45,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-19 15:31:46,196 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-19 15:31:46,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:46,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-19 15:31:46,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:31:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:46,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:31:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7567 backedges. 0 proven. 7567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:48,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535584324] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:31:48,922 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:31:48,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-19 15:31:48,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735218432] [2021-12-19 15:31:48,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:31:48,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-19 15:31:48,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:31:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-19 15:31:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-19 15:31:48,925 INFO L87 Difference]: Start difference. First operand 672 states and 750 transitions. Second operand has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:31:49,211 INFO L93 Difference]: Finished difference Result 800 states and 847 transitions. [2021-12-19 15:31:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-19 15:31:49,211 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2021-12-19 15:31:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:31:49,213 INFO L225 Difference]: With dead ends: 800 [2021-12-19 15:31:49,213 INFO L226 Difference]: Without dead ends: 799 [2021-12-19 15:31:49,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-19 15:31:49,214 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 368 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:31:49,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [368 Valid, 640 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:31:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2021-12-19 15:31:49,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 675. [2021-12-19 15:31:49,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 671 states have (on average 1.052160953800298) internal successors, (706), 674 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:49,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 706 transitions. [2021-12-19 15:31:49,224 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 706 transitions. Word has length 332 [2021-12-19 15:31:49,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:31:49,225 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 706 transitions. [2021-12-19 15:31:49,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.968421052631579) internal successors, (662), 96 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:31:49,225 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 706 transitions. [2021-12-19 15:31:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-12-19 15:31:49,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:31:49,227 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:31:49,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-12-19 15:31:49,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-12-19 15:31:49,439 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:31:49,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:31:49,440 INFO L85 PathProgramCache]: Analyzing trace with hash 917570213, now seen corresponding path program 6 times [2021-12-19 15:31:49,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:31:49,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204156028] [2021-12-19 15:31:49,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:31:49,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:31:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:31:53,180 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:31:53,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:31:53,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204156028] [2021-12-19 15:31:53,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204156028] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:31:53,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103231553] [2021-12-19 15:31:53,181 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:31:53,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:31:53,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:31:53,182 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:31:53,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-19 15:31:53,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2021-12-19 15:31:53,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:31:53,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1109 conjuncts, 255 conjunts are in the unsatisfiable core [2021-12-19 15:31:53,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:02,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:32:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 13734 backedges. 0 proven. 13734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:16,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103231553] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:32:16,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:32:16,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 191, 191] total 510 [2021-12-19 15:32:16,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881863348] [2021-12-19 15:32:16,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:32:16,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 511 states [2021-12-19 15:32:16,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:32:16,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 511 interpolants. [2021-12-19 15:32:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35171, Invalid=225439, Unknown=0, NotChecked=0, Total=260610 [2021-12-19 15:32:16,468 INFO L87 Difference]: Start difference. First operand 675 states and 706 transitions. Second operand has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:38,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:32:38,505 INFO L93 Difference]: Finished difference Result 1192 states and 1255 transitions. [2021-12-19 15:32:38,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 413 states. [2021-12-19 15:32:38,506 INFO L78 Accepts]: Start accepts. Automaton has has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 448 [2021-12-19 15:32:38,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:32:38,511 INFO L225 Difference]: With dead ends: 1192 [2021-12-19 15:32:38,511 INFO L226 Difference]: Without dead ends: 999 [2021-12-19 15:32:38,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 793 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287688 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=94240, Invalid=536990, Unknown=0, NotChecked=0, Total=631230 [2021-12-19 15:32:38,538 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 3279 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:32:38,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3279 Valid, 736 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-19 15:32:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-12-19 15:32:38,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 900. [2021-12-19 15:32:38,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 896 states have (on average 1.1116071428571428) internal successors, (996), 899 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:38,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 996 transitions. [2021-12-19 15:32:38,567 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 996 transitions. Word has length 448 [2021-12-19 15:32:38,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:32:38,567 INFO L470 AbstractCegarLoop]: Abstraction has 900 states and 996 transitions. [2021-12-19 15:32:38,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 511 states, 510 states have (on average 2.627450980392157) internal successors, (1340), 511 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:32:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 996 transitions. [2021-12-19 15:32:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2021-12-19 15:32:38,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:32:38,571 INFO L514 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-19 15:32:38,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-12-19 15:32:38,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:38,786 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:32:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:32:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2108197531, now seen corresponding path program 6 times [2021-12-19 15:32:38,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:32:38,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762998799] [2021-12-19 15:32:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:32:38,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:32:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:32:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:46,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:32:46,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762998799] [2021-12-19 15:32:46,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762998799] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:32:46,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934203709] [2021-12-19 15:32:46,526 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:32:46,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:32:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:32:46,527 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:32:46,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-19 15:32:47,726 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-19 15:32:47,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:32:47,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-19 15:32:47,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:32:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:32:48,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:33:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 30785 backedges. 0 proven. 30785 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:33:08,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934203709] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:33:08,469 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:33:08,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2021-12-19 15:33:08,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122032723] [2021-12-19 15:33:08,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:33:08,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2021-12-19 15:33:08,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:33:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2021-12-19 15:33:08,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2021-12-19 15:33:08,480 INFO L87 Difference]: Start difference. First operand 900 states and 996 transitions. Second operand has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:33:30,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:33:30,137 INFO L93 Difference]: Finished difference Result 1786 states and 1881 transitions. [2021-12-19 15:33:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2021-12-19 15:33:30,137 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 663 [2021-12-19 15:33:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:33:30,141 INFO L225 Difference]: With dead ends: 1786 [2021-12-19 15:33:30,141 INFO L226 Difference]: Without dead ends: 1785 [2021-12-19 15:33:30,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1135 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2021-12-19 15:33:30,153 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 4267 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-19 15:33:30,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4267 Valid, 1193 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-19 15:33:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2021-12-19 15:33:30,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1342. [2021-12-19 15:33:30,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1338 states have (on average 1.1920777279521675) internal successors, (1595), 1341 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:33:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1595 transitions. [2021-12-19 15:33:30,171 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1595 transitions. Word has length 663 [2021-12-19 15:33:30,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:33:30,171 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1595 transitions. [2021-12-19 15:33:30,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4750656167979) internal successors, (1324), 382 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:33:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1595 transitions. [2021-12-19 15:33:30,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2021-12-19 15:33:30,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:33:30,177 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-19 15:33:30,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-12-19 15:33:30,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:33:30,391 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:33:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:33:30,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1246738023, now seen corresponding path program 6 times [2021-12-19 15:33:30,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:33:30,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848379683] [2021-12-19 15:33:30,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:33:30,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:33:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:33:38,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:33:38,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:33:38,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848379683] [2021-12-19 15:33:38,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848379683] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:33:38,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157452190] [2021-12-19 15:33:38,066 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:33:38,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:33:38,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:33:38,067 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:33:38,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-19 15:33:39,350 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-19 15:33:39,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:33:39,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 1641 conjuncts, 191 conjunts are in the unsatisfiable core [2021-12-19 15:33:39,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:33:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:33:40,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:33:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:33:59,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157452190] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:33:59,457 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:33:59,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2021-12-19 15:33:59,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141468488] [2021-12-19 15:33:59,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:33:59,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2021-12-19 15:33:59,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:33:59,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2021-12-19 15:33:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2021-12-19 15:33:59,470 INFO L87 Difference]: Start difference. First operand 1342 states and 1595 transitions. Second operand has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:34:21,124 INFO L93 Difference]: Finished difference Result 1693 states and 1788 transitions. [2021-12-19 15:34:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2021-12-19 15:34:21,127 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 665 [2021-12-19 15:34:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:34:21,131 INFO L225 Difference]: With dead ends: 1693 [2021-12-19 15:34:21,131 INFO L226 Difference]: Without dead ends: 1692 [2021-12-19 15:34:21,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1709 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 38.2s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2021-12-19 15:34:21,143 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3418 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3418 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 1212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-19 15:34:21,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3418 Valid, 1064 Invalid, 1212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-19 15:34:21,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2021-12-19 15:34:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1344. [2021-12-19 15:34:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 1340 states have (on average 1.1208955223880597) internal successors, (1502), 1343 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:21,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1502 transitions. [2021-12-19 15:34:21,161 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1502 transitions. Word has length 665 [2021-12-19 15:34:21,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:34:21,161 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 1502 transitions. [2021-12-19 15:34:21,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 3.4855643044619424) internal successors, (1328), 382 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:21,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1502 transitions. [2021-12-19 15:34:21,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2021-12-19 15:34:21,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:34:21,165 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 94, 1, 1, 1, 1] [2021-12-19 15:34:21,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-12-19 15:34:21,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-12-19 15:34:21,379 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:34:21,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:34:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1304678927, now seen corresponding path program 6 times [2021-12-19 15:34:21,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:34:21,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234461802] [2021-12-19 15:34:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:34:21,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:34:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:34:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:34:24,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:34:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234461802] [2021-12-19 15:34:24,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234461802] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:34:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000481022] [2021-12-19 15:34:24,149 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:34:24,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:34:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:34:24,150 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:34:24,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-12-19 15:34:25,423 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-19 15:34:25,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:34:25,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-19 15:34:25,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:34:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:34:26,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:34:34,304 INFO L134 CoverageAnalysis]: Checked inductivity of 31255 backedges. 0 proven. 31255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:34:34,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000481022] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:34:34,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:34:34,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-19 15:34:34,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302438660] [2021-12-19 15:34:34,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:34:34,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-19 15:34:34,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:34:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-19 15:34:34,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-19 15:34:34,313 INFO L87 Difference]: Start difference. First operand 1344 states and 1502 transitions. Second operand has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:34:35,652 INFO L93 Difference]: Finished difference Result 1600 states and 1695 transitions. [2021-12-19 15:34:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-19 15:34:35,653 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 668 [2021-12-19 15:34:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:34:35,656 INFO L225 Difference]: With dead ends: 1600 [2021-12-19 15:34:35,657 INFO L226 Difference]: Without dead ends: 1599 [2021-12-19 15:34:35,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1430 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-19 15:34:35,658 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 844 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-19 15:34:35,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 1269 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-19 15:34:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2021-12-19 15:34:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1347. [2021-12-19 15:34:35,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 1343 states have (on average 1.0498883097542815) internal successors, (1410), 1346 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1410 transitions. [2021-12-19 15:34:35,675 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1410 transitions. Word has length 668 [2021-12-19 15:34:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:34:35,676 INFO L470 AbstractCegarLoop]: Abstraction has 1347 states and 1410 transitions. [2021-12-19 15:34:35,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.984293193717278) internal successors, (1334), 192 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:34:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1410 transitions. [2021-12-19 15:34:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2021-12-19 15:34:35,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:34:35,682 INFO L514 BasicCegarLoop]: trace histogram [127, 127, 127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:34:35,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-12-19 15:34:35,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-12-19 15:34:35,895 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:34:35,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:34:35,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1221821787, now seen corresponding path program 7 times [2021-12-19 15:34:35,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:34:35,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413684114] [2021-12-19 15:34:35,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:34:35,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:34:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:34:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:34:49,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:34:49,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413684114] [2021-12-19 15:34:49,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413684114] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:34:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799402876] [2021-12-19 15:34:49,597 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-19 15:34:49,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:34:49,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:34:49,598 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:34:49,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-12-19 15:34:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:34:49,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 511 conjunts are in the unsatisfiable core [2021-12-19 15:34:49,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:35:21,160 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:35:21,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:36:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 56134 backedges. 0 proven. 56134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:36:13,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799402876] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:36:13,736 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:36:13,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 383, 383] total 1022 [2021-12-19 15:36:13,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553095609] [2021-12-19 15:36:13,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:36:13,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1023 states [2021-12-19 15:36:13,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:36:13,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1023 interpolants. [2021-12-19 15:36:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139971, Invalid=905535, Unknown=0, NotChecked=0, Total=1045506 [2021-12-19 15:36:13,797 INFO L87 Difference]: Start difference. First operand 1347 states and 1410 transitions. Second operand has 1023 states, 1022 states have (on average 2.6262230919765166) internal successors, (2684), 1023 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:38:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:38:17,235 INFO L93 Difference]: Finished difference Result 2376 states and 2503 transitions. [2021-12-19 15:38:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 829 states. [2021-12-19 15:38:17,236 INFO L78 Accepts]: Start accepts. Automaton has has 1023 states, 1022 states have (on average 2.6262230919765166) internal successors, (2684), 1023 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 896 [2021-12-19 15:38:17,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:38:17,240 INFO L225 Difference]: With dead ends: 2376 [2021-12-19 15:38:17,240 INFO L226 Difference]: Without dead ends: 1991 [2021-12-19 15:38:17,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2620 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1593 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169224 ImplicationChecksByTransitivity, 157.3s TimeCoverageRelationStatistics Valid=376896, Invalid=2165534, Unknown=0, NotChecked=0, Total=2542430 [2021-12-19 15:38:17,380 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 9190 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 2173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9190 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 5400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2173 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:38:17,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9190 Valid, 1153 Invalid, 5400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2173 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-19 15:38:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-12-19 15:38:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1796. [2021-12-19 15:38:17,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1792 states have (on average 1.109375) internal successors, (1988), 1795 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:38:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 1988 transitions. [2021-12-19 15:38:17,402 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 1988 transitions. Word has length 896 [2021-12-19 15:38:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:38:17,402 INFO L470 AbstractCegarLoop]: Abstraction has 1796 states and 1988 transitions. [2021-12-19 15:38:17,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1023 states, 1022 states have (on average 2.6262230919765166) internal successors, (2684), 1023 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:38:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 1988 transitions. [2021-12-19 15:38:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2021-12-19 15:38:17,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:38:17,413 INFO L514 BasicCegarLoop]: trace histogram [191, 190, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2021-12-19 15:38:17,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-12-19 15:38:17,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-19 15:38:17,630 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:38:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:38:17,631 INFO L85 PathProgramCache]: Analyzing trace with hash 716947813, now seen corresponding path program 7 times [2021-12-19 15:38:17,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:38:17,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409321650] [2021-12-19 15:38:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:38:17,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:38:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:38:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:38:47,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:38:47,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409321650] [2021-12-19 15:38:47,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409321650] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:38:47,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928341215] [2021-12-19 15:38:47,799 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-19 15:38:47,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:38:47,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:38:47,800 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:38:47,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-19 15:38:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:38:48,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 3267 conjuncts, 384 conjunts are in the unsatisfiable core [2021-12-19 15:38:48,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:38:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:38:49,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:40:07,470 INFO L134 CoverageAnalysis]: Checked inductivity of 126065 backedges. 0 proven. 126065 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:40:07,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928341215] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:40:07,470 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:40:07,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [383, 383, 383] total 765 [2021-12-19 15:40:07,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196863350] [2021-12-19 15:40:07,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:40:07,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 766 states [2021-12-19 15:40:07,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:40:07,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 766 interpolants. [2021-12-19 15:40:07,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147071, Invalid=438919, Unknown=0, NotChecked=0, Total=585990 [2021-12-19 15:40:07,508 INFO L87 Difference]: Start difference. First operand 1796 states and 1988 transitions. Second operand has 766 states, 765 states have (on average 3.4875816993464053) internal successors, (2668), 766 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Killed by 15