./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1c1708791fcf2960c26e9a8f23439327de305ab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 11:26:51,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:26:51,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:26:51,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:26:51,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:26:51,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:26:51,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:26:51,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:26:51,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:26:51,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:26:51,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:26:51,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:26:51,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:26:51,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:26:51,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:26:51,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:26:51,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:26:51,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:26:51,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:26:51,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:26:51,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:26:51,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:26:51,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:26:51,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:26:51,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:26:51,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:26:51,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:26:51,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:26:51,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:26:51,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:26:51,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:26:51,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:26:51,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:26:51,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:26:51,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:26:51,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:26:51,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:26:51,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:26:51,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:26:51,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:26:51,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:26:51,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-27 11:26:51,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:26:51,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:26:51,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:26:51,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:26:51,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:26:51,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:26:51,931 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:26:51,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:26:51,931 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 11:26:51,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:26:51,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:26:51,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 11:26:51,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:26:51,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:26:51,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:26:51,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:26:51,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:26:51,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:26:51,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:26:51,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:26:51,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:26:51,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:26:51,936 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c1708791fcf2960c26e9a8f23439327de305ab [2021-08-27 11:26:52,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:26:52,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:26:52,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:26:52,196 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:26:52,196 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:26:52,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2021-08-27 11:26:52,257 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38827404/df1b2a497ee743adb57740e43d591a83/FLAG7ebe63724 [2021-08-27 11:26:52,580 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:26:52,582 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2021-08-27 11:26:52,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38827404/df1b2a497ee743adb57740e43d591a83/FLAG7ebe63724 [2021-08-27 11:26:52,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c38827404/df1b2a497ee743adb57740e43d591a83 [2021-08-27 11:26:52,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:26:52,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:26:52,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:26:52,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:26:52,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:26:52,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:26:52" (1/1) ... [2021-08-27 11:26:52,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31715499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:52, skipping insertion in model container [2021-08-27 11:26:52,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:26:52" (1/1) ... [2021-08-27 11:26:53,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:26:53,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:26:53,133 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c[422,435] [2021-08-27 11:26:53,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:26:53,180 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:26:53,199 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c[422,435] [2021-08-27 11:26:53,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:26:53,247 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:26:53,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53 WrapperNode [2021-08-27 11:26:53,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:26:53,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:26:53,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:26:53,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:26:53,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:26:53,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:26:53,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:26:53,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:26:53,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:26:53,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:26:53,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:26:53,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:26:53,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (1/1) ... [2021-08-27 11:26:53,344 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:26:53,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:53,356 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) [2021-08-27 11:26:53,390 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 [2021-08-27 11:26:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:26:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:26:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:26:53,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:26:53,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:26:53,847 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-08-27 11:26:53,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:53 BoogieIcfgContainer [2021-08-27 11:26:53,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:26:53,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:26:53,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:26:53,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:26:53,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:26:52" (1/3) ... [2021-08-27 11:26:53,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37fb6d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:26:53, skipping insertion in model container [2021-08-27 11:26:53,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:53" (2/3) ... [2021-08-27 11:26:53,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37fb6d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:26:53, skipping insertion in model container [2021-08-27 11:26:53,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:53" (3/3) ... [2021-08-27 11:26:53,858 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2.c.cil.c [2021-08-27 11:26:53,862 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:26:53,862 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-08-27 11:26:53,894 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:26:53,898 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 11:26:53,898 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-08-27 11:26:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 116 states have (on average 1.853448275862069) internal successors, (215), 162 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:53,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:26:53,916 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:53,917 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:53,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:53,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:53,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-08-27 11:26:53,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:53,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096426817] [2021-08-27 11:26:53,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:53,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096426817] [2021-08-27 11:26:54,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096426817] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:26:54,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977707970] [2021-08-27 11:26:54,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 11:26:54,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 11:26:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 11:26:54,027 INFO L87 Difference]: Start difference. First operand has 163 states, 116 states have (on average 1.853448275862069) internal successors, (215), 162 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-08-27 11:26:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,064 INFO L93 Difference]: Finished difference Result 306 states and 402 transitions. [2021-08-27 11:26:54,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 11:26:54,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-08-27 11:26:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,074 INFO L225 Difference]: With dead ends: 306 [2021-08-27 11:26:54,074 INFO L226 Difference]: Without dead ends: 148 [2021-08-27 11:26:54,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 11:26:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-08-27 11:26:54,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-08-27 11:26:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 147 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 175 transitions. [2021-08-27 11:26:54,115 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 175 transitions. Word has length 7 [2021-08-27 11:26:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,116 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 175 transitions. [2021-08-27 11:26:54,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-08-27 11:26:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 175 transitions. [2021-08-27 11:26:54,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:26:54,117 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,117 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:26:54,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-08-27 11:26:54,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252447880] [2021-08-27 11:26:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252447880] [2021-08-27 11:26:54,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252447880] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:26:54,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584707323] [2021-08-27 11:26:54,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:54,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:54,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,197 INFO L87 Difference]: Start difference. First operand 148 states and 175 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-08-27 11:26:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,344 INFO L93 Difference]: Finished difference Result 309 states and 369 transitions. [2021-08-27 11:26:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:54,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2021-08-27 11:26:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,348 INFO L225 Difference]: With dead ends: 309 [2021-08-27 11:26:54,348 INFO L226 Difference]: Without dead ends: 180 [2021-08-27 11:26:54,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-08-27 11:26:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2021-08-27 11:26:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 130 states have (on average 1.5615384615384615) internal successors, (203), 173 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 203 transitions. [2021-08-27 11:26:54,370 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 203 transitions. Word has length 7 [2021-08-27 11:26:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,371 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 203 transitions. [2021-08-27 11:26:54,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2021-08-27 11:26:54,371 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 203 transitions. [2021-08-27 11:26:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:26:54,371 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,372 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 11:26:54,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,374 INFO L82 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2021-08-27 11:26:54,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303463075] [2021-08-27 11:26:54,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303463075] [2021-08-27 11:26:54,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303463075] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263202240] [2021-08-27 11:26:54,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:54,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:54,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,440 INFO L87 Difference]: Start difference. First operand 174 states and 203 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,488 INFO L93 Difference]: Finished difference Result 308 states and 359 transitions. [2021-08-27 11:26:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-27 11:26:54,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,489 INFO L225 Difference]: With dead ends: 308 [2021-08-27 11:26:54,489 INFO L226 Difference]: Without dead ends: 137 [2021-08-27 11:26:54,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-27 11:26:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-08-27 11:26:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 101 states have (on average 1.5742574257425743) internal successors, (159), 136 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 159 transitions. [2021-08-27 11:26:54,500 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 159 transitions. Word has length 10 [2021-08-27 11:26:54,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,500 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 159 transitions. [2021-08-27 11:26:54,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 159 transitions. [2021-08-27 11:26:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:26:54,501 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,501 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 11:26:54,501 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,502 INFO L82 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2021-08-27 11:26:54,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463163269] [2021-08-27 11:26:54,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463163269] [2021-08-27 11:26:54,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463163269] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525211396] [2021-08-27 11:26:54,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:54,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:54,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,553 INFO L87 Difference]: Start difference. First operand 137 states and 159 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,634 INFO L93 Difference]: Finished difference Result 196 states and 225 transitions. [2021-08-27 11:26:54,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:54,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-27 11:26:54,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,635 INFO L225 Difference]: With dead ends: 196 [2021-08-27 11:26:54,635 INFO L226 Difference]: Without dead ends: 189 [2021-08-27 11:26:54,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:54,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-08-27 11:26:54,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 138. [2021-08-27 11:26:54,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.5046728971962617) internal successors, (161), 137 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 161 transitions. [2021-08-27 11:26:54,639 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 161 transitions. Word has length 13 [2021-08-27 11:26:54,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,639 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 161 transitions. [2021-08-27 11:26:54,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 161 transitions. [2021-08-27 11:26:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:26:54,640 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,640 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 11:26:54,640 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2021-08-27 11:26:54,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412885589] [2021-08-27 11:26:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412885589] [2021-08-27 11:26:54,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412885589] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718295324] [2021-08-27 11:26:54,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:54,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,670 INFO L87 Difference]: Start difference. First operand 138 states and 161 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,701 INFO L93 Difference]: Finished difference Result 239 states and 278 transitions. [2021-08-27 11:26:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-27 11:26:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,702 INFO L225 Difference]: With dead ends: 239 [2021-08-27 11:26:54,702 INFO L226 Difference]: Without dead ends: 120 [2021-08-27 11:26:54,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-08-27 11:26:54,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-08-27 11:26:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 119 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2021-08-27 11:26:54,705 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 13 [2021-08-27 11:26:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,705 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2021-08-27 11:26:54,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2021-08-27 11:26:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 11:26:54,706 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,706 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 11:26:54,706 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1665546515, now seen corresponding path program 1 times [2021-08-27 11:26:54,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231352365] [2021-08-27 11:26:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231352365] [2021-08-27 11:26:54,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231352365] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991140957] [2021-08-27 11:26:54,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:54,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,731 INFO L87 Difference]: Start difference. First operand 120 states and 138 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,808 INFO L93 Difference]: Finished difference Result 272 states and 312 transitions. [2021-08-27 11:26:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-27 11:26:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,809 INFO L225 Difference]: With dead ends: 272 [2021-08-27 11:26:54,809 INFO L226 Difference]: Without dead ends: 174 [2021-08-27 11:26:54,810 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-08-27 11:26:54,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 130. [2021-08-27 11:26:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 101 states have (on average 1.4851485148514851) internal successors, (150), 129 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2021-08-27 11:26:54,813 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 15 [2021-08-27 11:26:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,813 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2021-08-27 11:26:54,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:54,813 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2021-08-27 11:26:54,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 11:26:54,814 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,814 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 11:26:54,814 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,814 INFO L82 PathProgramCache]: Analyzing trace with hash 92334597, now seen corresponding path program 1 times [2021-08-27 11:26:54,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310885070] [2021-08-27 11:26:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:54,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310885070] [2021-08-27 11:26:54,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310885070] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954091383] [2021-08-27 11:26:54,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:54,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:54,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,838 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2021-08-27 11:26:54,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:54,900 INFO L93 Difference]: Finished difference Result 172 states and 195 transitions. [2021-08-27 11:26:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:54,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 [2021-08-27 11:26:54,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:54,901 INFO L225 Difference]: With dead ends: 172 [2021-08-27 11:26:54,901 INFO L226 Difference]: Without dead ends: 171 [2021-08-27 11:26:54,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-08-27 11:26:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 129. [2021-08-27 11:26:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 101 states have (on average 1.4653465346534653) internal successors, (148), 128 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) [2021-08-27 11:26:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2021-08-27 11:26:54,904 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 16 [2021-08-27 11:26:54,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:54,904 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2021-08-27 11:26:54,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2021-08-27 11:26:54,905 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2021-08-27 11:26:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 11:26:54,905 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:54,905 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:54,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 11:26:54,906 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:54,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:54,906 INFO L82 PathProgramCache]: Analyzing trace with hash -493050292, now seen corresponding path program 1 times [2021-08-27 11:26:54,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:54,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119626164] [2021-08-27 11:26:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:54,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 11:26:54,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:54,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119626164] [2021-08-27 11:26:54,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119626164] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:54,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:54,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:54,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067338406] [2021-08-27 11:26:54,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:54,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:54,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:54,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:54,929 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:55,025 INFO L93 Difference]: Finished difference Result 231 states and 261 transitions. [2021-08-27 11:26:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-27 11:26:55,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:55,026 INFO L225 Difference]: With dead ends: 231 [2021-08-27 11:26:55,026 INFO L226 Difference]: Without dead ends: 222 [2021-08-27 11:26:55,026 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-08-27 11:26:55,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 127. [2021-08-27 11:26:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 126 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 149 transitions. [2021-08-27 11:26:55,030 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 149 transitions. Word has length 20 [2021-08-27 11:26:55,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:55,030 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 149 transitions. [2021-08-27 11:26:55,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,031 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 149 transitions. [2021-08-27 11:26:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-27 11:26:55,031 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:55,031 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:55,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 11:26:55,032 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:55,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:55,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1879445663, now seen corresponding path program 1 times [2021-08-27 11:26:55,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:55,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108666217] [2021-08-27 11:26:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:55,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108666217] [2021-08-27 11:26:55,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108666217] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:55,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:55,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:55,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857976658] [2021-08-27 11:26:55,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:55,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:55,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:55,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:55,060 INFO L87 Difference]: Start difference. First operand 127 states and 149 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2021-08-27 11:26:55,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:55,113 INFO L93 Difference]: Finished difference Result 171 states and 197 transitions. [2021-08-27 11:26:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:55,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 26 [2021-08-27 11:26:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:55,115 INFO L225 Difference]: With dead ends: 171 [2021-08-27 11:26:55,115 INFO L226 Difference]: Without dead ends: 168 [2021-08-27 11:26:55,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:55,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-08-27 11:26:55,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 119. [2021-08-27 11:26:55,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.4141414141414141) internal successors, (140), 118 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 140 transitions. [2021-08-27 11:26:55,118 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 140 transitions. Word has length 26 [2021-08-27 11:26:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:55,119 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 140 transitions. [2021-08-27 11:26:55,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2021-08-27 11:26:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 140 transitions. [2021-08-27 11:26:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 11:26:55,119 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:55,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:55,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-27 11:26:55,120 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:55,120 INFO L82 PathProgramCache]: Analyzing trace with hash 143003537, now seen corresponding path program 1 times [2021-08-27 11:26:55,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:55,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128295688] [2021-08-27 11:26:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:55,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128295688] [2021-08-27 11:26:55,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128295688] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:55,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:55,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:55,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737799241] [2021-08-27 11:26:55,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:55,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:55,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:55,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:55,146 INFO L87 Difference]: Start difference. First operand 119 states and 140 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:55,202 INFO L93 Difference]: Finished difference Result 170 states and 197 transitions. [2021-08-27 11:26:55,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:55,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-08-27 11:26:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:55,203 INFO L225 Difference]: With dead ends: 170 [2021-08-27 11:26:55,203 INFO L226 Difference]: Without dead ends: 168 [2021-08-27 11:26:55,204 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:55,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-08-27 11:26:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 122. [2021-08-27 11:26:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.3883495145631068) internal successors, (143), 121 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2021-08-27 11:26:55,207 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 27 [2021-08-27 11:26:55,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:55,207 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2021-08-27 11:26:55,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,207 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2021-08-27 11:26:55,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-27 11:26:55,208 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:55,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:55,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-27 11:26:55,208 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:55,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:55,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1864633022, now seen corresponding path program 1 times [2021-08-27 11:26:55,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:55,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867929800] [2021-08-27 11:26:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:55,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867929800] [2021-08-27 11:26:55,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867929800] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:55,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:55,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 11:26:55,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941313606] [2021-08-27 11:26:55,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:55,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:55,241 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:55,276 INFO L93 Difference]: Finished difference Result 227 states and 266 transitions. [2021-08-27 11:26:55,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:55,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-08-27 11:26:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:55,277 INFO L225 Difference]: With dead ends: 227 [2021-08-27 11:26:55,277 INFO L226 Difference]: Without dead ends: 124 [2021-08-27 11:26:55,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:55,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-08-27 11:26:55,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2021-08-27 11:26:55,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 121 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2021-08-27 11:26:55,280 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 27 [2021-08-27 11:26:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:55,281 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2021-08-27 11:26:55,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2021-08-27 11:26:55,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-27 11:26:55,281 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:55,281 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:55,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-27 11:26:55,282 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:55,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:55,282 INFO L82 PathProgramCache]: Analyzing trace with hash -842241641, now seen corresponding path program 1 times [2021-08-27 11:26:55,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:55,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659475552] [2021-08-27 11:26:55,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:55,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659475552] [2021-08-27 11:26:55,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659475552] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:55,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368694872] [2021-08-27 11:26:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:55,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:55,325 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) [2021-08-27 11:26:55,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 11:26:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 11:26:55,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:55,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368694872] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:55,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:55,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-27 11:26:55,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113675694] [2021-08-27 11:26:55,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 11:26:55,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 11:26:55,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:26:55,521 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) [2021-08-27 11:26:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:55,589 INFO L93 Difference]: Finished difference Result 276 states and 319 transitions. [2021-08-27 11:26:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 11:26:55,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) Word has length 29 [2021-08-27 11:26:55,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:55,590 INFO L225 Difference]: With dead ends: 276 [2021-08-27 11:26:55,590 INFO L226 Difference]: Without dead ends: 178 [2021-08-27 11:26:55,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:26:55,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-08-27 11:26:55,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 127. [2021-08-27 11:26:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 126 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) [2021-08-27 11:26:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2021-08-27 11:26:55,594 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 29 [2021-08-27 11:26:55,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:55,594 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2021-08-27 11:26:55,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) [2021-08-27 11:26:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2021-08-27 11:26:55,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-27 11:26:55,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:55,595 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:55,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:55,808 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,SelfDestructingSolverStorable11 [2021-08-27 11:26:55,809 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:55,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:55,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1541188357, now seen corresponding path program 1 times [2021-08-27 11:26:55,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:55,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060904671] [2021-08-27 11:26:55,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:55,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:55,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060904671] [2021-08-27 11:26:55,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060904671] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:55,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258512702] [2021-08-27 11:26:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:55,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:55,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:55,875 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) [2021-08-27 11:26:55,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-27 11:26:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:55,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 11:26:55,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:56,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258512702] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:56,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:56,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-27 11:26:56,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241537982] [2021-08-27 11:26:56,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 11:26:56,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 11:26:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:26:56,082 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:56,172 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2021-08-27 11:26:56,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 11:26:56,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 32 [2021-08-27 11:26:56,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:56,173 INFO L225 Difference]: With dead ends: 232 [2021-08-27 11:26:56,173 INFO L226 Difference]: Without dead ends: 129 [2021-08-27 11:26:56,173 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:26:56,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-08-27 11:26:56,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 127. [2021-08-27 11:26:56,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 126 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2021-08-27 11:26:56,177 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 32 [2021-08-27 11:26:56,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:56,177 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2021-08-27 11:26:56,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,177 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2021-08-27 11:26:56,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-27 11:26:56,178 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:56,178 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:56,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:56,395 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,SelfDestructingSolverStorable12 [2021-08-27 11:26:56,395 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:56,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:56,396 INFO L82 PathProgramCache]: Analyzing trace with hash 750436112, now seen corresponding path program 2 times [2021-08-27 11:26:56,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:56,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361363593] [2021-08-27 11:26:56,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:56,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:56,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:56,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361363593] [2021-08-27 11:26:56,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361363593] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:56,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733498062] [2021-08-27 11:26:56,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:26:56,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:56,440 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) [2021-08-27 11:26:56,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-27 11:26:56,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:26:56,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:56,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 11:26:56,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:56,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733498062] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:56,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:56,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-08-27 11:26:56,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723239649] [2021-08-27 11:26:56,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 11:26:56,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:56,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 11:26:56,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:26:56,610 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:56,680 INFO L93 Difference]: Finished difference Result 281 states and 324 transitions. [2021-08-27 11:26:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 11:26:56,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 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 34 [2021-08-27 11:26:56,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:56,682 INFO L225 Difference]: With dead ends: 281 [2021-08-27 11:26:56,682 INFO L226 Difference]: Without dead ends: 183 [2021-08-27 11:26:56,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.4ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:26:56,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-08-27 11:26:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 132. [2021-08-27 11:26:56,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 131 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2021-08-27 11:26:56,686 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 34 [2021-08-27 11:26:56,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:56,686 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2021-08-27 11:26:56,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:56,687 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2021-08-27 11:26:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-27 11:26:56,687 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:56,687 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:56,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:56,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:56,904 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:56,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:56,905 INFO L82 PathProgramCache]: Analyzing trace with hash -581967646, now seen corresponding path program 2 times [2021-08-27 11:26:56,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:56,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680024579] [2021-08-27 11:26:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:56,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:56,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:56,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:56,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:56,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680024579] [2021-08-27 11:26:56,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680024579] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:56,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229639905] [2021-08-27 11:26:56,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:26:56,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:56,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:56,993 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) [2021-08-27 11:26:57,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-27 11:26:57,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:26:57,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:57,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 11:26:57,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:57,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229639905] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:57,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:57,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-08-27 11:26:57,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354697301] [2021-08-27 11:26:57,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 11:26:57,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 11:26:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:26:57,247 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:57,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:57,328 INFO L93 Difference]: Finished difference Result 237 states and 276 transitions. [2021-08-27 11:26:57,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 11:26:57,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 37 [2021-08-27 11:26:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:57,329 INFO L225 Difference]: With dead ends: 237 [2021-08-27 11:26:57,329 INFO L226 Difference]: Without dead ends: 134 [2021-08-27 11:26:57,329 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:26:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-27 11:26:57,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-08-27 11:26:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 113 states have (on average 1.345132743362832) internal successors, (152), 131 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) [2021-08-27 11:26:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 152 transitions. [2021-08-27 11:26:57,332 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 152 transitions. Word has length 37 [2021-08-27 11:26:57,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:57,333 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 152 transitions. [2021-08-27 11:26:57,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:57,333 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 152 transitions. [2021-08-27 11:26:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-27 11:26:57,333 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:57,333 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:57,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:57,551 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,SelfDestructingSolverStorable14 [2021-08-27 11:26:57,551 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -856429257, now seen corresponding path program 3 times [2021-08-27 11:26:57,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:57,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068092963] [2021-08-27 11:26:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:57,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:57,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:57,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068092963] [2021-08-27 11:26:57,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068092963] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:57,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801813661] [2021-08-27 11:26:57,590 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:26:57,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:57,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:57,591 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) [2021-08-27 11:26:57,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-27 11:26:57,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-27 11:26:57,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:57,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 11:26:57,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:57,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801813661] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:57,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:57,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-27 11:26:57,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813406568] [2021-08-27 11:26:57,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 11:26:57,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:57,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 11:26:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:26:57,796 INFO L87 Difference]: Start difference. First operand 132 states and 152 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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) [2021-08-27 11:26:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:57,874 INFO L93 Difference]: Finished difference Result 286 states and 329 transitions. [2021-08-27 11:26:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 11:26:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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) Word has length 39 [2021-08-27 11:26:57,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:57,875 INFO L225 Difference]: With dead ends: 286 [2021-08-27 11:26:57,875 INFO L226 Difference]: Without dead ends: 188 [2021-08-27 11:26:57,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:26:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-08-27 11:26:57,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 137. [2021-08-27 11:26:57,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.3389830508474576) internal successors, (158), 136 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) [2021-08-27 11:26:57,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 158 transitions. [2021-08-27 11:26:57,879 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 158 transitions. Word has length 39 [2021-08-27 11:26:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:57,879 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 158 transitions. [2021-08-27 11:26:57,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 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) [2021-08-27 11:26:57,880 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 158 transitions. [2021-08-27 11:26:57,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-27 11:26:57,880 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:57,880 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:57,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:58,093 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,SelfDestructingSolverStorable15 [2021-08-27 11:26:58,093 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:58,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:58,094 INFO L82 PathProgramCache]: Analyzing trace with hash 997305691, now seen corresponding path program 3 times [2021-08-27 11:26:58,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:58,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921768136] [2021-08-27 11:26:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:58,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:58,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:58,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:58,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921768136] [2021-08-27 11:26:58,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921768136] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:58,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574568579] [2021-08-27 11:26:58,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:26:58,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:58,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:58,165 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) [2021-08-27 11:26:58,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-27 11:26:58,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-27 11:26:58,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:58,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 11:26:58,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:58,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574568579] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:58,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:58,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-27 11:26:58,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495224857] [2021-08-27 11:26:58,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 11:26:58,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:58,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 11:26:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:26:58,512 INFO L87 Difference]: Start difference. First operand 137 states and 158 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:58,591 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-08-27 11:26:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 11:26:58,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 42 [2021-08-27 11:26:58,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:58,592 INFO L225 Difference]: With dead ends: 242 [2021-08-27 11:26:58,593 INFO L226 Difference]: Without dead ends: 139 [2021-08-27 11:26:58,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 42.4ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:26:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-08-27 11:26:58,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2021-08-27 11:26:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.3305084745762712) internal successors, (157), 136 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2021-08-27 11:26:58,596 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 42 [2021-08-27 11:26:58,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:58,596 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2021-08-27 11:26:58,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:58,597 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2021-08-27 11:26:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-08-27 11:26:58,597 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:58,597 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:58,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:58,813 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,SelfDestructingSolverStorable16 [2021-08-27 11:26:58,813 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:58,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:58,814 INFO L82 PathProgramCache]: Analyzing trace with hash 701792112, now seen corresponding path program 4 times [2021-08-27 11:26:58,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:58,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138487373] [2021-08-27 11:26:58,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:58,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:58,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:58,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138487373] [2021-08-27 11:26:58,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138487373] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:58,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995812294] [2021-08-27 11:26:58,873 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:26:58,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:58,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:58,874 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) [2021-08-27 11:26:58,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 11:26:59,032 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:26:59,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:59,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 11:26:59,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:59,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995812294] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:59,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:59,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-08-27 11:26:59,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025629100] [2021-08-27 11:26:59,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 11:26:59,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 11:26:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:26:59,136 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:59,207 INFO L93 Difference]: Finished difference Result 291 states and 334 transitions. [2021-08-27 11:26:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 11:26:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 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 44 [2021-08-27 11:26:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:59,209 INFO L225 Difference]: With dead ends: 291 [2021-08-27 11:26:59,209 INFO L226 Difference]: Without dead ends: 193 [2021-08-27 11:26:59,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:26:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-08-27 11:26:59,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 142. [2021-08-27 11:26:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 123 states have (on average 1.3252032520325203) internal successors, (163), 141 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:59,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 163 transitions. [2021-08-27 11:26:59,213 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 163 transitions. Word has length 44 [2021-08-27 11:26:59,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:59,213 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 163 transitions. [2021-08-27 11:26:59,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:26:59,213 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 163 transitions. [2021-08-27 11:26:59,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-27 11:26:59,214 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:59,214 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:59,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-27 11:26:59,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:59,440 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:26:59,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:59,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1963574402, now seen corresponding path program 4 times [2021-08-27 11:26:59,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:59,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652189541] [2021-08-27 11:26:59,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:59,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:59,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:59,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652189541] [2021-08-27 11:26:59,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652189541] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:59,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979803385] [2021-08-27 11:26:59,512 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:26:59,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:26:59,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:59,513 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) [2021-08-27 11:26:59,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 11:26:59,663 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:26:59,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:26:59,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 11:26:59,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:26:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:26:59,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979803385] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:26:59,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:26:59,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-08-27 11:26:59,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903099708] [2021-08-27 11:26:59,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 11:26:59,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:59,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 11:26:59,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:26:59,885 INFO L87 Difference]: Start difference. First operand 142 states and 163 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:00,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:00,026 INFO L93 Difference]: Finished difference Result 247 states and 286 transitions. [2021-08-27 11:27:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 11:27:00,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 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 47 [2021-08-27 11:27:00,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:00,027 INFO L225 Difference]: With dead ends: 247 [2021-08-27 11:27:00,027 INFO L226 Difference]: Without dead ends: 144 [2021-08-27 11:27:00,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 56.1ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:27:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-08-27 11:27:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2021-08-27 11:27:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 123 states have (on average 1.3170731707317074) internal successors, (162), 141 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2021-08-27 11:27:00,032 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 47 [2021-08-27 11:27:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:00,032 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2021-08-27 11:27:00,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2021-08-27 11:27:00,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-08-27 11:27:00,033 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:00,033 INFO L512 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:00,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-08-27 11:27:00,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:00,252 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:00,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1573087447, now seen corresponding path program 5 times [2021-08-27 11:27:00,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:00,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995832371] [2021-08-27 11:27:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:00,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:00,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:00,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995832371] [2021-08-27 11:27:00,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995832371] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:00,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343310339] [2021-08-27 11:27:00,305 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:00,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:00,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:00,306 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) [2021-08-27 11:27:00,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 11:27:00,528 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-27 11:27:00,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:00,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 11:27:00,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:00,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343310339] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:00,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:00,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-08-27 11:27:00,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262314606] [2021-08-27 11:27:00,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 11:27:00,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 11:27:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:27:00,709 INFO L87 Difference]: Start difference. First operand 142 states and 162 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 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) [2021-08-27 11:27:00,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:00,813 INFO L93 Difference]: Finished difference Result 296 states and 339 transitions. [2021-08-27 11:27:00,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 11:27:00,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 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) Word has length 49 [2021-08-27 11:27:00,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:00,814 INFO L225 Difference]: With dead ends: 296 [2021-08-27 11:27:00,814 INFO L226 Difference]: Without dead ends: 198 [2021-08-27 11:27:00,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 27.5ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:27:00,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-08-27 11:27:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 147. [2021-08-27 11:27:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.3125) internal successors, (168), 146 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 168 transitions. [2021-08-27 11:27:00,819 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 168 transitions. Word has length 49 [2021-08-27 11:27:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:00,819 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 168 transitions. [2021-08-27 11:27:00,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 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) [2021-08-27 11:27:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 168 transitions. [2021-08-27 11:27:00,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-27 11:27:00,819 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:00,819 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:00,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:01,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:01,033 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:01,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:01,033 INFO L82 PathProgramCache]: Analyzing trace with hash -59437637, now seen corresponding path program 5 times [2021-08-27 11:27:01,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:01,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66317956] [2021-08-27 11:27:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:01,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:01,115 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:01,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:01,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66317956] [2021-08-27 11:27:01,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66317956] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:01,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95781278] [2021-08-27 11:27:01,115 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:01,116 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:01,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:01,116 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) [2021-08-27 11:27:01,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 11:27:01,297 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 11:27:01,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:01,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 11:27:01,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:01,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95781278] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:01,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:01,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-08-27 11:27:01,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526551777] [2021-08-27 11:27:01,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 11:27:01,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:01,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 11:27:01,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:27:01,591 INFO L87 Difference]: Start difference. First operand 147 states and 168 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 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) [2021-08-27 11:27:01,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:01,673 INFO L93 Difference]: Finished difference Result 252 states and 291 transitions. [2021-08-27 11:27:01,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 11:27:01,674 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 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) Word has length 52 [2021-08-27 11:27:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:01,674 INFO L225 Difference]: With dead ends: 252 [2021-08-27 11:27:01,674 INFO L226 Difference]: Without dead ends: 149 [2021-08-27 11:27:01,675 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 70.2ms TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:27:01,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-08-27 11:27:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2021-08-27 11:27:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.3046875) internal successors, (167), 146 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:01,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 167 transitions. [2021-08-27 11:27:01,678 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 167 transitions. Word has length 52 [2021-08-27 11:27:01,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:01,678 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 167 transitions. [2021-08-27 11:27:01,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 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) [2021-08-27 11:27:01,679 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 167 transitions. [2021-08-27 11:27:01,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-27 11:27:01,679 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:01,679 INFO L512 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:01,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:01,892 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,SelfDestructingSolverStorable20 [2021-08-27 11:27:01,893 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:01,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:01,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1216264240, now seen corresponding path program 6 times [2021-08-27 11:27:01,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:01,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117288662] [2021-08-27 11:27:01,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:01,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:01,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117288662] [2021-08-27 11:27:01,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117288662] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946158880] [2021-08-27 11:27:01,968 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:01,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:01,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:01,972 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) [2021-08-27 11:27:02,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-27 11:27:02,217 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-27 11:27:02,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:02,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 11:27:02,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:02,339 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:02,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946158880] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:02,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:02,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-08-27 11:27:02,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708829492] [2021-08-27 11:27:02,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 11:27:02,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:02,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 11:27:02,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:27:02,341 INFO L87 Difference]: Start difference. First operand 147 states and 167 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:02,413 INFO L93 Difference]: Finished difference Result 301 states and 344 transitions. [2021-08-27 11:27:02,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 11:27:02,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 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 54 [2021-08-27 11:27:02,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:02,414 INFO L225 Difference]: With dead ends: 301 [2021-08-27 11:27:02,414 INFO L226 Difference]: Without dead ends: 203 [2021-08-27 11:27:02,415 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:27:02,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-08-27 11:27:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 152. [2021-08-27 11:27:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.300751879699248) internal successors, (173), 151 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2021-08-27 11:27:02,419 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 54 [2021-08-27 11:27:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:02,419 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2021-08-27 11:27:02,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2021-08-27 11:27:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-27 11:27:02,419 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:02,420 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:02,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:02,642 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,SelfDestructingSolverStorable21 [2021-08-27 11:27:02,643 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:02,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1391697954, now seen corresponding path program 6 times [2021-08-27 11:27:02,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:02,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249511695] [2021-08-27 11:27:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:02,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:02,745 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:02,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:02,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249511695] [2021-08-27 11:27:02,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249511695] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:02,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230114638] [2021-08-27 11:27:02,746 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:02,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:02,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:02,751 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) [2021-08-27 11:27:02,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-27 11:27:03,063 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-27 11:27:03,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:03,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-27 11:27:03,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:03,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230114638] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:03,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:03,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-08-27 11:27:03,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355346664] [2021-08-27 11:27:03,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 11:27:03,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:03,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 11:27:03,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:27:03,383 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:03,547 INFO L93 Difference]: Finished difference Result 257 states and 296 transitions. [2021-08-27 11:27:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 11:27:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 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 57 [2021-08-27 11:27:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:03,548 INFO L225 Difference]: With dead ends: 257 [2021-08-27 11:27:03,548 INFO L226 Difference]: Without dead ends: 154 [2021-08-27 11:27:03,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 89.3ms TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:27:03,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-08-27 11:27:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-08-27 11:27:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 133 states have (on average 1.2932330827067668) internal successors, (172), 151 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 172 transitions. [2021-08-27 11:27:03,552 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 172 transitions. Word has length 57 [2021-08-27 11:27:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:03,553 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 172 transitions. [2021-08-27 11:27:03,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 11 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 172 transitions. [2021-08-27 11:27:03,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-27 11:27:03,553 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:03,553 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:03,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:03,758 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,SelfDestructingSolverStorable22 [2021-08-27 11:27:03,759 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:03,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:03,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1755634807, now seen corresponding path program 7 times [2021-08-27 11:27:03,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:03,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058232470] [2021-08-27 11:27:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:03,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:03,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:03,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058232470] [2021-08-27 11:27:03,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058232470] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:03,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514999982] [2021-08-27 11:27:03,839 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:03,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:03,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:03,840 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) [2021-08-27 11:27:03,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-27 11:27:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:04,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 11:27:04,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:04,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514999982] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:04,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:04,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-08-27 11:27:04,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489925063] [2021-08-27 11:27:04,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 11:27:04,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 11:27:04,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:27:04,262 INFO L87 Difference]: Start difference. First operand 152 states and 172 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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) [2021-08-27 11:27:04,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:04,381 INFO L93 Difference]: Finished difference Result 306 states and 349 transitions. [2021-08-27 11:27:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 11:27:04,397 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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) Word has length 59 [2021-08-27 11:27:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:04,398 INFO L225 Difference]: With dead ends: 306 [2021-08-27 11:27:04,398 INFO L226 Difference]: Without dead ends: 208 [2021-08-27 11:27:04,400 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 51.6ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:27:04,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-08-27 11:27:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 157. [2021-08-27 11:27:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.289855072463768) internal successors, (178), 156 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) [2021-08-27 11:27:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2021-08-27 11:27:04,407 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 59 [2021-08-27 11:27:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:04,407 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2021-08-27 11:27:04,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 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) [2021-08-27 11:27:04,407 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2021-08-27 11:27:04,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-08-27 11:27:04,411 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:04,411 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:04,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:04,627 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,SelfDestructingSolverStorable23 [2021-08-27 11:27:04,628 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:04,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:04,628 INFO L82 PathProgramCache]: Analyzing trace with hash 780367387, now seen corresponding path program 7 times [2021-08-27 11:27:04,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:04,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289094648] [2021-08-27 11:27:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:04,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:04,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:04,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289094648] [2021-08-27 11:27:04,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289094648] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:04,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768232900] [2021-08-27 11:27:04,746 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:04,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:04,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:04,747 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) [2021-08-27 11:27:04,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-27 11:27:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:05,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 11:27:05,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:05,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768232900] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:05,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:05,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-08-27 11:27:05,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360035364] [2021-08-27 11:27:05,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 11:27:05,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:05,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 11:27:05,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:27:05,370 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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) [2021-08-27 11:27:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:05,582 INFO L93 Difference]: Finished difference Result 262 states and 301 transitions. [2021-08-27 11:27:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 11:27:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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 62 [2021-08-27 11:27:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:05,583 INFO L225 Difference]: With dead ends: 262 [2021-08-27 11:27:05,583 INFO L226 Difference]: Without dead ends: 159 [2021-08-27 11:27:05,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 101.8ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:27:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-27 11:27:05,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2021-08-27 11:27:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 156 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions. [2021-08-27 11:27:05,592 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 62 [2021-08-27 11:27:05,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:05,592 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions. [2021-08-27 11:27:05,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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) [2021-08-27 11:27:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2021-08-27 11:27:05,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-08-27 11:27:05,592 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:05,593 INFO L512 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:05,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:05,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:05,807 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:05,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:05,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1617487824, now seen corresponding path program 8 times [2021-08-27 11:27:05,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:05,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789658675] [2021-08-27 11:27:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:05,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:05,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:05,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789658675] [2021-08-27 11:27:05,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789658675] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:05,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729299538] [2021-08-27 11:27:05,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:05,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:05,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:05,903 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) [2021-08-27 11:27:05,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-27 11:27:06,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:06,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:06,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 11:27:06,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:06,373 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:06,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729299538] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:06,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:06,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-08-27 11:27:06,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198469729] [2021-08-27 11:27:06,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 11:27:06,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:06,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 11:27:06,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:27:06,376 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:06,494 INFO L93 Difference]: Finished difference Result 311 states and 354 transitions. [2021-08-27 11:27:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 11:27:06,500 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 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 64 [2021-08-27 11:27:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:06,500 INFO L225 Difference]: With dead ends: 311 [2021-08-27 11:27:06,501 INFO L226 Difference]: Without dead ends: 213 [2021-08-27 11:27:06,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 65.5ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:27:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-08-27 11:27:06,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 162. [2021-08-27 11:27:06,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 143 states have (on average 1.2797202797202798) internal successors, (183), 161 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 183 transitions. [2021-08-27 11:27:06,513 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 183 transitions. Word has length 64 [2021-08-27 11:27:06,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:06,513 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 183 transitions. [2021-08-27 11:27:06,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 183 transitions. [2021-08-27 11:27:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-27 11:27:06,514 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:06,514 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:06,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:06,731 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,SelfDestructingSolverStorable25 [2021-08-27 11:27:06,732 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:06,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1433891778, now seen corresponding path program 8 times [2021-08-27 11:27:06,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:06,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086691831] [2021-08-27 11:27:06,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:06,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:06,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:06,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086691831] [2021-08-27 11:27:06,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086691831] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:06,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926354769] [2021-08-27 11:27:06,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:06,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:06,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:06,881 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) [2021-08-27 11:27:06,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-27 11:27:07,225 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:07,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:07,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 11:27:07,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:07,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926354769] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:07,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:07,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-08-27 11:27:07,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039373555] [2021-08-27 11:27:07,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 11:27:07,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:07,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 11:27:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:27:07,665 INFO L87 Difference]: Start difference. First operand 162 states and 183 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:07,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:07,862 INFO L93 Difference]: Finished difference Result 267 states and 306 transitions. [2021-08-27 11:27:07,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 11:27:07,862 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 67 [2021-08-27 11:27:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:07,863 INFO L225 Difference]: With dead ends: 267 [2021-08-27 11:27:07,863 INFO L226 Difference]: Without dead ends: 164 [2021-08-27 11:27:07,864 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 59 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 175.3ms TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:27:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-08-27 11:27:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 162. [2021-08-27 11:27:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 143 states have (on average 1.2727272727272727) internal successors, (182), 161 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 182 transitions. [2021-08-27 11:27:07,870 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 182 transitions. Word has length 67 [2021-08-27 11:27:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:07,870 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 182 transitions. [2021-08-27 11:27:07,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:07,870 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 182 transitions. [2021-08-27 11:27:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-27 11:27:07,871 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:07,871 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:07,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:08,095 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,SelfDestructingSolverStorable26 [2021-08-27 11:27:08,095 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:08,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:08,096 INFO L82 PathProgramCache]: Analyzing trace with hash -645773289, now seen corresponding path program 9 times [2021-08-27 11:27:08,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:08,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579803053] [2021-08-27 11:27:08,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:08,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:08,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:08,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579803053] [2021-08-27 11:27:08,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579803053] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:08,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313282279] [2021-08-27 11:27:08,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:27:08,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:08,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:08,198 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) [2021-08-27 11:27:08,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-27 11:27:08,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-08-27 11:27:08,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:08,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 11:27:08,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:09,077 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:09,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313282279] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:09,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:09,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-08-27 11:27:09,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406290507] [2021-08-27 11:27:09,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 11:27:09,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 11:27:09,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:27:09,079 INFO L87 Difference]: Start difference. First operand 162 states and 182 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:09,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:09,166 INFO L93 Difference]: Finished difference Result 316 states and 359 transitions. [2021-08-27 11:27:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 11:27:09,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 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 69 [2021-08-27 11:27:09,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:09,194 INFO L225 Difference]: With dead ends: 316 [2021-08-27 11:27:09,194 INFO L226 Difference]: Without dead ends: 218 [2021-08-27 11:27:09,194 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:27:09,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-08-27 11:27:09,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 167. [2021-08-27 11:27:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.2702702702702702) internal successors, (188), 166 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 188 transitions. [2021-08-27 11:27:09,202 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 188 transitions. Word has length 69 [2021-08-27 11:27:09,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:09,202 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 188 transitions. [2021-08-27 11:27:09,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 188 transitions. [2021-08-27 11:27:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-08-27 11:27:09,203 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:09,203 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:09,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:09,408 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,SelfDestructingSolverStorable27 [2021-08-27 11:27:09,409 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:09,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1702028923, now seen corresponding path program 9 times [2021-08-27 11:27:09,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:09,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597612341] [2021-08-27 11:27:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:09,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:09,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:09,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597612341] [2021-08-27 11:27:09,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597612341] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:09,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004754824] [2021-08-27 11:27:09,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:27:09,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:09,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:09,564 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) [2021-08-27 11:27:09,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-27 11:27:11,342 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-27 11:27:11,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:11,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 11:27:11,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:11,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004754824] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:11,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:11,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-08-27 11:27:11,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065750967] [2021-08-27 11:27:11,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 11:27:11,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:11,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 11:27:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:27:11,751 INFO L87 Difference]: Start difference. First operand 167 states and 188 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 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) [2021-08-27 11:27:11,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:11,960 INFO L93 Difference]: Finished difference Result 272 states and 311 transitions. [2021-08-27 11:27:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 11:27:11,960 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 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 72 [2021-08-27 11:27:11,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:11,961 INFO L225 Difference]: With dead ends: 272 [2021-08-27 11:27:11,961 INFO L226 Difference]: Without dead ends: 169 [2021-08-27 11:27:11,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 154.3ms TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:27:11,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-08-27 11:27:11,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2021-08-27 11:27:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.2635135135135136) internal successors, (187), 166 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 187 transitions. [2021-08-27 11:27:11,970 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 187 transitions. Word has length 72 [2021-08-27 11:27:11,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:11,970 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 187 transitions. [2021-08-27 11:27:11,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 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) [2021-08-27 11:27:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 187 transitions. [2021-08-27 11:27:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-08-27 11:27:11,971 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:11,971 INFO L512 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:11,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:12,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-08-27 11:27:12,177 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:12,177 INFO L82 PathProgramCache]: Analyzing trace with hash -664014704, now seen corresponding path program 10 times [2021-08-27 11:27:12,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:12,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980625724] [2021-08-27 11:27:12,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:12,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:12,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:12,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980625724] [2021-08-27 11:27:12,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980625724] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:12,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57304624] [2021-08-27 11:27:12,271 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:27:12,271 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:12,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:12,272 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) [2021-08-27 11:27:12,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-27 11:27:12,743 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:27:12,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:12,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 11:27:12,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:12,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57304624] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:12,908 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:12,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-08-27 11:27:12,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759557437] [2021-08-27 11:27:12,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 11:27:12,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:12,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 11:27:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:27:12,909 INFO L87 Difference]: Start difference. First operand 167 states and 187 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:12,996 INFO L93 Difference]: Finished difference Result 321 states and 364 transitions. [2021-08-27 11:27:12,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 11:27:12,996 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 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 74 [2021-08-27 11:27:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:12,997 INFO L225 Difference]: With dead ends: 321 [2021-08-27 11:27:12,997 INFO L226 Difference]: Without dead ends: 223 [2021-08-27 11:27:12,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 63.3ms TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:27:12,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-08-27 11:27:13,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 172. [2021-08-27 11:27:13,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 153 states have (on average 1.261437908496732) internal successors, (193), 171 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:13,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2021-08-27 11:27:13,002 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 74 [2021-08-27 11:27:13,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:13,002 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2021-08-27 11:27:13,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 15 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:13,002 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2021-08-27 11:27:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-08-27 11:27:13,003 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:13,003 INFO L512 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:13,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:13,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:13,223 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:13,223 INFO L82 PathProgramCache]: Analyzing trace with hash -562086046, now seen corresponding path program 10 times [2021-08-27 11:27:13,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:13,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414969491] [2021-08-27 11:27:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:13,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:13,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:13,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414969491] [2021-08-27 11:27:13,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414969491] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:13,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870397445] [2021-08-27 11:27:13,378 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:27:13,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:13,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:13,379 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) [2021-08-27 11:27:13,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-08-27 11:27:13,879 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:27:13,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:13,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-27 11:27:13,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:14,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870397445] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:14,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:14,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-08-27 11:27:14,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953658286] [2021-08-27 11:27:14,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 11:27:14,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:14,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 11:27:14,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:27:14,313 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:14,577 INFO L93 Difference]: Finished difference Result 277 states and 316 transitions. [2021-08-27 11:27:14,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 11:27:14,577 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 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 [2021-08-27 11:27:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:14,578 INFO L225 Difference]: With dead ends: 277 [2021-08-27 11:27:14,578 INFO L226 Difference]: Without dead ends: 174 [2021-08-27 11:27:14,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 183.3ms TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:27:14,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-08-27 11:27:14,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2021-08-27 11:27:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 171 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 192 transitions. [2021-08-27 11:27:14,583 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 192 transitions. Word has length 77 [2021-08-27 11:27:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:14,583 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 192 transitions. [2021-08-27 11:27:14,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 192 transitions. [2021-08-27 11:27:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-08-27 11:27:14,584 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:14,584 INFO L512 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:14,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:14,801 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,SelfDestructingSolverStorable30 [2021-08-27 11:27:14,802 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:14,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:14,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1069919159, now seen corresponding path program 11 times [2021-08-27 11:27:14,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:14,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937330995] [2021-08-27 11:27:14,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:14,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:14,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:14,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937330995] [2021-08-27 11:27:14,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937330995] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:14,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672250008] [2021-08-27 11:27:14,917 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:14,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:14,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:14,918 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) [2021-08-27 11:27:14,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-27 11:27:15,460 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-08-27 11:27:15,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:15,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 11:27:15,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:15,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672250008] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:15,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:15,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-08-27 11:27:15,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218356906] [2021-08-27 11:27:15,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 11:27:15,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:15,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 11:27:15,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:27:15,661 INFO L87 Difference]: Start difference. First operand 172 states and 192 transitions. Second operand has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:15,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:15,753 INFO L93 Difference]: Finished difference Result 326 states and 369 transitions. [2021-08-27 11:27:15,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 11:27:15,753 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 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 79 [2021-08-27 11:27:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:15,754 INFO L225 Difference]: With dead ends: 326 [2021-08-27 11:27:15,754 INFO L226 Difference]: Without dead ends: 228 [2021-08-27 11:27:15,754 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 74.4ms TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:27:15,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-08-27 11:27:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 177. [2021-08-27 11:27:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2531645569620253) internal successors, (198), 176 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:15,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 198 transitions. [2021-08-27 11:27:15,759 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 198 transitions. Word has length 79 [2021-08-27 11:27:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:15,759 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 198 transitions. [2021-08-27 11:27:15,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.375) internal successors, (86), 16 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:15,759 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 198 transitions. [2021-08-27 11:27:15,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-08-27 11:27:15,760 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:15,760 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:15,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:15,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:15,977 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:15,977 INFO L82 PathProgramCache]: Analyzing trace with hash -510042405, now seen corresponding path program 11 times [2021-08-27 11:27:15,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:15,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786608675] [2021-08-27 11:27:15,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:15,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:16,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:16,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786608675] [2021-08-27 11:27:16,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786608675] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:16,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684619210] [2021-08-27 11:27:16,152 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:16,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:16,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:16,152 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) [2021-08-27 11:27:16,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-27 11:27:16,744 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-08-27 11:27:16,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:16,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-27 11:27:16,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:17,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684619210] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:17,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:17,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-08-27 11:27:17,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974034934] [2021-08-27 11:27:17,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 11:27:17,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:17,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 11:27:17,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:27:17,287 INFO L87 Difference]: Start difference. First operand 177 states and 198 transitions. Second operand has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:17,610 INFO L93 Difference]: Finished difference Result 282 states and 321 transitions. [2021-08-27 11:27:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 11:27:17,611 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 82 [2021-08-27 11:27:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:17,611 INFO L225 Difference]: With dead ends: 282 [2021-08-27 11:27:17,611 INFO L226 Difference]: Without dead ends: 179 [2021-08-27 11:27:17,611 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 11 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 226.7ms TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:27:17,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-08-27 11:27:17,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2021-08-27 11:27:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2468354430379747) internal successors, (197), 176 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 197 transitions. [2021-08-27 11:27:17,616 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 197 transitions. Word has length 82 [2021-08-27 11:27:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:17,616 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 197 transitions. [2021-08-27 11:27:17,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:17,616 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 197 transitions. [2021-08-27 11:27:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-27 11:27:17,617 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:17,617 INFO L512 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:17,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:17,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:17,825 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:17,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:17,825 INFO L82 PathProgramCache]: Analyzing trace with hash -455749392, now seen corresponding path program 12 times [2021-08-27 11:27:17,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:17,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418314789] [2021-08-27 11:27:17,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:17,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:17,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:17,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418314789] [2021-08-27 11:27:17,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418314789] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:17,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491525125] [2021-08-27 11:27:17,958 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:17,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:17,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:17,973 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) [2021-08-27 11:27:18,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-08-27 11:27:18,724 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-08-27 11:27:18,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:18,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 11:27:18,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:18,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491525125] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:18,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:18,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-08-27 11:27:18,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534556692] [2021-08-27 11:27:18,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 11:27:18,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:18,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 11:27:18,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:27:18,929 INFO L87 Difference]: Start difference. First operand 177 states and 197 transitions. Second operand has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:19,046 INFO L93 Difference]: Finished difference Result 331 states and 374 transitions. [2021-08-27 11:27:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 11:27:19,047 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 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 84 [2021-08-27 11:27:19,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:19,048 INFO L225 Difference]: With dead ends: 331 [2021-08-27 11:27:19,048 INFO L226 Difference]: Without dead ends: 233 [2021-08-27 11:27:19,048 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 85.7ms TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:27:19,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-08-27 11:27:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 182. [2021-08-27 11:27:19,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.2453987730061349) internal successors, (203), 181 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 203 transitions. [2021-08-27 11:27:19,052 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 203 transitions. Word has length 84 [2021-08-27 11:27:19,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:19,053 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 203 transitions. [2021-08-27 11:27:19,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.352941176470588) internal successors, (91), 17 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,053 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 203 transitions. [2021-08-27 11:27:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-27 11:27:19,053 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,053 INFO L512 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:19,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:19,260 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:19,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1937048322, now seen corresponding path program 12 times [2021-08-27 11:27:19,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122381952] [2021-08-27 11:27:19,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:19,452 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:19,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:19,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122381952] [2021-08-27 11:27:19,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122381952] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:19,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187500378] [2021-08-27 11:27:19,452 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:19,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:19,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:19,453 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) [2021-08-27 11:27:19,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-27 11:27:20,221 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-08-27 11:27:20,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:20,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 31 conjunts are in the unsatisfiable core [2021-08-27 11:27:20,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:20,813 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:20,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187500378] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:20,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:20,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-08-27 11:27:20,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633000044] [2021-08-27 11:27:20,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 11:27:20,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:20,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 11:27:20,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:27:20,815 INFO L87 Difference]: Start difference. First operand 182 states and 203 transitions. Second operand has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:21,141 INFO L93 Difference]: Finished difference Result 287 states and 326 transitions. [2021-08-27 11:27:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 11:27:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 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 87 [2021-08-27 11:27:21,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:21,170 INFO L225 Difference]: With dead ends: 287 [2021-08-27 11:27:21,170 INFO L226 Difference]: Without dead ends: 184 [2021-08-27 11:27:21,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 12 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 252.4ms TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:27:21,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-08-27 11:27:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2021-08-27 11:27:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 163 states have (on average 1.2392638036809815) internal successors, (202), 181 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 202 transitions. [2021-08-27 11:27:21,175 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 202 transitions. Word has length 87 [2021-08-27 11:27:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:21,175 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 202 transitions. [2021-08-27 11:27:21,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 202 transitions. [2021-08-27 11:27:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-08-27 11:27:21,176 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:21,176 INFO L512 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:21,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:21,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:21,382 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:21,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1851328343, now seen corresponding path program 13 times [2021-08-27 11:27:21,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:21,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847711127] [2021-08-27 11:27:21,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:21,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:21,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:21,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847711127] [2021-08-27 11:27:21,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847711127] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:21,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440371700] [2021-08-27 11:27:21,562 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:21,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:21,563 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) [2021-08-27 11:27:21,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 11:27:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:22,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 11:27:22,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:22,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440371700] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:22,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:22,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-08-27 11:27:22,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738071255] [2021-08-27 11:27:22,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 11:27:22,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:22,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 11:27:22,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:27:22,438 INFO L87 Difference]: Start difference. First operand 182 states and 202 transitions. Second operand has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:22,551 INFO L93 Difference]: Finished difference Result 336 states and 379 transitions. [2021-08-27 11:27:22,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 11:27:22,551 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-08-27 11:27:22,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:22,552 INFO L225 Difference]: With dead ends: 336 [2021-08-27 11:27:22,552 INFO L226 Difference]: Without dead ends: 238 [2021-08-27 11:27:22,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 128.3ms TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:27:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-27 11:27:22,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 187. [2021-08-27 11:27:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.2380952380952381) internal successors, (208), 186 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 208 transitions. [2021-08-27 11:27:22,557 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 208 transitions. Word has length 89 [2021-08-27 11:27:22,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:22,557 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 208 transitions. [2021-08-27 11:27:22,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.333333333333333) internal successors, (96), 18 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 208 transitions. [2021-08-27 11:27:22,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-08-27 11:27:22,558 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:22,558 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:22,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:22,776 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,SelfDestructingSolverStorable35 [2021-08-27 11:27:22,776 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash -271786181, now seen corresponding path program 13 times [2021-08-27 11:27:22,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:22,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161590653] [2021-08-27 11:27:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:22,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:22,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:22,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161590653] [2021-08-27 11:27:22,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161590653] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:22,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766518011] [2021-08-27 11:27:22,999 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:22,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:23,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:23,000 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) [2021-08-27 11:27:23,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-08-27 11:27:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:23,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-27 11:27:23,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:24,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766518011] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:24,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:24,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-08-27 11:27:24,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826003642] [2021-08-27 11:27:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 11:27:24,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:24,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 11:27:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:27:24,305 INFO L87 Difference]: Start difference. First operand 187 states and 208 transitions. Second operand has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:24,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:24,663 INFO L93 Difference]: Finished difference Result 292 states and 331 transitions. [2021-08-27 11:27:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 11:27:24,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-08-27 11:27:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:24,664 INFO L225 Difference]: With dead ends: 292 [2021-08-27 11:27:24,664 INFO L226 Difference]: Without dead ends: 189 [2021-08-27 11:27:24,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 79 SyntacticMatches, 13 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 279.5ms TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:27:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-08-27 11:27:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2021-08-27 11:27:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 186 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 207 transitions. [2021-08-27 11:27:24,686 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 207 transitions. Word has length 92 [2021-08-27 11:27:24,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:24,686 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 207 transitions. [2021-08-27 11:27:24,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.222222222222222) internal successors, (94), 18 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 207 transitions. [2021-08-27 11:27:24,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-08-27 11:27:24,687 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:24,687 INFO L512 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:24,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:24,887 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,SelfDestructingSolverStorable36 [2021-08-27 11:27:24,888 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:24,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:24,888 INFO L82 PathProgramCache]: Analyzing trace with hash 875215184, now seen corresponding path program 14 times [2021-08-27 11:27:24,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:24,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978341997] [2021-08-27 11:27:24,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:24,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:25,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:25,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978341997] [2021-08-27 11:27:25,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978341997] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:25,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052793139] [2021-08-27 11:27:25,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:25,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:25,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:25,087 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) [2021-08-27 11:27:25,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-27 11:27:25,849 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:25,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:25,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 11:27:25,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:26,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052793139] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:26,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:26,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-08-27 11:27:26,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326549274] [2021-08-27 11:27:26,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 11:27:26,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:26,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 11:27:26,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:27:26,103 INFO L87 Difference]: Start difference. First operand 187 states and 207 transitions. Second operand has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:26,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:26,261 INFO L93 Difference]: Finished difference Result 341 states and 384 transitions. [2021-08-27 11:27:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 11:27:26,261 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-08-27 11:27:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:26,262 INFO L225 Difference]: With dead ends: 341 [2021-08-27 11:27:26,262 INFO L226 Difference]: Without dead ends: 243 [2021-08-27 11:27:26,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 112.6ms TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:27:26,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-08-27 11:27:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 192. [2021-08-27 11:27:26,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.23121387283237) internal successors, (213), 191 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:26,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 213 transitions. [2021-08-27 11:27:26,267 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 213 transitions. Word has length 94 [2021-08-27 11:27:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:26,267 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 213 transitions. [2021-08-27 11:27:26,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.315789473684211) internal successors, (101), 19 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 213 transitions. [2021-08-27 11:27:26,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-08-27 11:27:26,267 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:26,267 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:26,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:26,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-08-27 11:27:26,468 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:26,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:26,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1564655266, now seen corresponding path program 14 times [2021-08-27 11:27:26,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:26,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045892224] [2021-08-27 11:27:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:26,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:26,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:26,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045892224] [2021-08-27 11:27:26,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045892224] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:26,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280048736] [2021-08-27 11:27:26,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:26,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:26,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:26,691 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:26,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-08-27 11:27:27,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:27,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:27,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 35 conjunts are in the unsatisfiable core [2021-08-27 11:27:27,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:28,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280048736] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:28,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:28,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-08-27 11:27:28,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498595808] [2021-08-27 11:27:28,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 11:27:28,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 11:27:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:27:28,252 INFO L87 Difference]: Start difference. First operand 192 states and 213 transitions. Second operand has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:28,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:28,714 INFO L93 Difference]: Finished difference Result 297 states and 336 transitions. [2021-08-27 11:27:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 11:27:28,714 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 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 97 [2021-08-27 11:27:28,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:28,715 INFO L225 Difference]: With dead ends: 297 [2021-08-27 11:27:28,715 INFO L226 Difference]: Without dead ends: 194 [2021-08-27 11:27:28,715 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 331.8ms TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:27:28,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-08-27 11:27:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2021-08-27 11:27:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 173 states have (on average 1.2254335260115607) internal successors, (212), 191 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 212 transitions. [2021-08-27 11:27:28,720 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 212 transitions. Word has length 97 [2021-08-27 11:27:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:28,720 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 212 transitions. [2021-08-27 11:27:28,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 212 transitions. [2021-08-27 11:27:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-08-27 11:27:28,721 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:28,721 INFO L512 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:28,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:28,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-08-27 11:27:28,940 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash 463887095, now seen corresponding path program 15 times [2021-08-27 11:27:28,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:28,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212072616] [2021-08-27 11:27:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:28,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:29,100 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:29,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:29,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212072616] [2021-08-27 11:27:29,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212072616] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:29,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808685924] [2021-08-27 11:27:29,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:27:29,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:29,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:29,102 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:29,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-27 11:27:30,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-08-27 11:27:30,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:30,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-27 11:27:30,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:30,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808685924] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:30,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:30,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-08-27 11:27:30,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131405221] [2021-08-27 11:27:30,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 11:27:30,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 11:27:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:27:30,421 INFO L87 Difference]: Start difference. First operand 192 states and 212 transitions. Second operand has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:30,517 INFO L93 Difference]: Finished difference Result 346 states and 389 transitions. [2021-08-27 11:27:30,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 11:27:30,518 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 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 99 [2021-08-27 11:27:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:30,519 INFO L225 Difference]: With dead ends: 346 [2021-08-27 11:27:30,519 INFO L226 Difference]: Without dead ends: 248 [2021-08-27 11:27:30,519 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 117.9ms TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:27:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-08-27 11:27:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 197. [2021-08-27 11:27:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 178 states have (on average 1.2247191011235956) internal successors, (218), 196 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-08-27 11:27:30,524 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 99 [2021-08-27 11:27:30,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:30,524 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-08-27 11:27:30,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.3) internal successors, (106), 20 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:30,524 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-08-27 11:27:30,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-08-27 11:27:30,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:30,525 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:30,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:30,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-08-27 11:27:30,732 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1231251355, now seen corresponding path program 15 times [2021-08-27 11:27:30,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:30,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073209128] [2021-08-27 11:27:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:30,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:30,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:30,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073209128] [2021-08-27 11:27:30,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073209128] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:30,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421067911] [2021-08-27 11:27:30,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:27:30,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:30,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:30,977 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:30,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-08-27 11:27:32,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-08-27 11:27:32,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 37 conjunts are in the unsatisfiable core [2021-08-27 11:27:32,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:32,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421067911] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:32,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:32,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-08-27 11:27:32,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248747643] [2021-08-27 11:27:32,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 11:27:32,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:32,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 11:27:32,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:27:32,948 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:33,282 INFO L93 Difference]: Finished difference Result 302 states and 341 transitions. [2021-08-27 11:27:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 11:27:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 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 102 [2021-08-27 11:27:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:33,283 INFO L225 Difference]: With dead ends: 302 [2021-08-27 11:27:33,283 INFO L226 Difference]: Without dead ends: 199 [2021-08-27 11:27:33,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 87 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 375.3ms TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:27:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-08-27 11:27:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2021-08-27 11:27:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 178 states have (on average 1.2191011235955056) internal successors, (217), 196 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 217 transitions. [2021-08-27 11:27:33,288 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 217 transitions. Word has length 102 [2021-08-27 11:27:33,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:33,288 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 217 transitions. [2021-08-27 11:27:33,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 217 transitions. [2021-08-27 11:27:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-08-27 11:27:33,289 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:33,289 INFO L512 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:33,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:33,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-08-27 11:27:33,496 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:33,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:33,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2109691472, now seen corresponding path program 16 times [2021-08-27 11:27:33,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:33,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435932560] [2021-08-27 11:27:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:33,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:33,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:33,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435932560] [2021-08-27 11:27:33,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435932560] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:33,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429865338] [2021-08-27 11:27:33,671 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:27:33,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:33,685 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:33,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-08-27 11:27:34,691 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:27:34,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:34,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-27 11:27:34,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:34,938 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:34,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429865338] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:34,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:34,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-08-27 11:27:34,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988306801] [2021-08-27 11:27:34,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 11:27:34,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 11:27:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:27:34,940 INFO L87 Difference]: Start difference. First operand 197 states and 217 transitions. Second operand has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:35,075 INFO L93 Difference]: Finished difference Result 351 states and 394 transitions. [2021-08-27 11:27:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-27 11:27:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 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 104 [2021-08-27 11:27:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:35,102 INFO L225 Difference]: With dead ends: 351 [2021-08-27 11:27:35,102 INFO L226 Difference]: Without dead ends: 253 [2021-08-27 11:27:35,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 132.7ms TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:27:35,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-08-27 11:27:35,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 202. [2021-08-27 11:27:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 183 states have (on average 1.2185792349726776) internal successors, (223), 201 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:35,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 223 transitions. [2021-08-27 11:27:35,107 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 223 transitions. Word has length 104 [2021-08-27 11:27:35,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:35,107 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 223 transitions. [2021-08-27 11:27:35,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:35,107 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 223 transitions. [2021-08-27 11:27:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-08-27 11:27:35,108 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:35,108 INFO L512 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:35,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:35,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:35,322 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:35,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:35,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1213362754, now seen corresponding path program 16 times [2021-08-27 11:27:35,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:35,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165786940] [2021-08-27 11:27:35,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:35,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:35,611 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:35,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:35,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165786940] [2021-08-27 11:27:35,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165786940] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:35,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887453275] [2021-08-27 11:27:35,611 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:27:35,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:35,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:35,612 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:35,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-08-27 11:27:36,636 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:27:36,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:36,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 39 conjunts are in the unsatisfiable core [2021-08-27 11:27:36,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:37,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887453275] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:37,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:37,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-08-27 11:27:37,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469630763] [2021-08-27 11:27:37,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 11:27:37,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 11:27:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:27:37,511 INFO L87 Difference]: Start difference. First operand 202 states and 223 transitions. Second operand has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:37,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:37,931 INFO L93 Difference]: Finished difference Result 307 states and 346 transitions. [2021-08-27 11:27:37,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-27 11:27:37,932 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 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 107 [2021-08-27 11:27:37,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:37,932 INFO L225 Difference]: With dead ends: 307 [2021-08-27 11:27:37,932 INFO L226 Difference]: Without dead ends: 204 [2021-08-27 11:27:37,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 91 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 458.8ms TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:27:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-08-27 11:27:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-08-27 11:27:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 183 states have (on average 1.2131147540983607) internal successors, (222), 201 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 222 transitions. [2021-08-27 11:27:37,937 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 222 transitions. Word has length 107 [2021-08-27 11:27:37,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:37,937 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 222 transitions. [2021-08-27 11:27:37,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.190476190476191) internal successors, (109), 21 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 222 transitions. [2021-08-27 11:27:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-08-27 11:27:37,938 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:37,938 INFO L512 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:37,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:38,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:38,149 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:38,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2120767849, now seen corresponding path program 17 times [2021-08-27 11:27:38,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:38,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783668641] [2021-08-27 11:27:38,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:38,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:38,367 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:38,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:38,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783668641] [2021-08-27 11:27:38,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783668641] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:38,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644350030] [2021-08-27 11:27:38,368 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:38,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:38,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:38,380 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:38,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-08-27 11:27:39,432 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-08-27 11:27:39,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:39,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 11:27:39,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:39,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644350030] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:39,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:39,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-08-27 11:27:39,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144495162] [2021-08-27 11:27:39,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 11:27:39,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 11:27:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:27:39,700 INFO L87 Difference]: Start difference. First operand 202 states and 222 transitions. Second operand has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:39,866 INFO L93 Difference]: Finished difference Result 356 states and 399 transitions. [2021-08-27 11:27:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 11:27:39,867 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 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 109 [2021-08-27 11:27:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:39,868 INFO L225 Difference]: With dead ends: 356 [2021-08-27 11:27:39,868 INFO L226 Difference]: Without dead ends: 258 [2021-08-27 11:27:39,868 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 173.2ms TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:27:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-08-27 11:27:39,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 207. [2021-08-27 11:27:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.2127659574468086) internal successors, (228), 206 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 228 transitions. [2021-08-27 11:27:39,874 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 228 transitions. Word has length 109 [2021-08-27 11:27:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:39,874 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 228 transitions. [2021-08-27 11:27:39,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.2727272727272725) internal successors, (116), 22 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 228 transitions. [2021-08-27 11:27:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-08-27 11:27:39,874 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:39,875 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:39,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:40,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-08-27 11:27:40,095 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:40,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:40,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1949497339, now seen corresponding path program 17 times [2021-08-27 11:27:40,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:40,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200922978] [2021-08-27 11:27:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:40,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:40,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:40,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200922978] [2021-08-27 11:27:40,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200922978] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:40,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141452367] [2021-08-27 11:27:40,363 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:27:40,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:40,370 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:40,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-08-27 11:27:41,471 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-08-27 11:27:41,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:41,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 41 conjunts are in the unsatisfiable core [2021-08-27 11:27:41,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:42,415 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:42,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141452367] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:42,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:42,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-08-27 11:27:42,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305659712] [2021-08-27 11:27:42,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 11:27:42,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 11:27:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:27:42,417 INFO L87 Difference]: Start difference. First operand 207 states and 228 transitions. Second operand has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:42,913 INFO L93 Difference]: Finished difference Result 312 states and 351 transitions. [2021-08-27 11:27:42,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 11:27:42,914 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 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 [2021-08-27 11:27:42,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:42,914 INFO L225 Difference]: With dead ends: 312 [2021-08-27 11:27:42,914 INFO L226 Difference]: Without dead ends: 209 [2021-08-27 11:27:42,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 95 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 453.8ms TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:27:42,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-08-27 11:27:42,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2021-08-27 11:27:42,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 188 states have (on average 1.2074468085106382) internal successors, (227), 206 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 227 transitions. [2021-08-27 11:27:42,919 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 227 transitions. Word has length 112 [2021-08-27 11:27:42,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:42,919 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 227 transitions. [2021-08-27 11:27:42,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.181818181818182) internal successors, (114), 22 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 227 transitions. [2021-08-27 11:27:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-08-27 11:27:42,920 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:42,920 INFO L512 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:42,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:43,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:43,128 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:43,128 INFO L82 PathProgramCache]: Analyzing trace with hash 929931792, now seen corresponding path program 18 times [2021-08-27 11:27:43,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:43,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429933151] [2021-08-27 11:27:43,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:43,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:43,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:43,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429933151] [2021-08-27 11:27:43,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429933151] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:43,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033230440] [2021-08-27 11:27:43,336 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:43,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:43,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:43,337 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:43,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-08-27 11:27:45,151 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-08-27 11:27:45,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:45,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 11:27:45,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:45,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033230440] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:45,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:45,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-08-27 11:27:45,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907465642] [2021-08-27 11:27:45,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 11:27:45,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 11:27:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:27:45,423 INFO L87 Difference]: Start difference. First operand 207 states and 227 transitions. Second operand has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:45,589 INFO L93 Difference]: Finished difference Result 361 states and 404 transitions. [2021-08-27 11:27:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 11:27:45,589 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 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 114 [2021-08-27 11:27:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:45,590 INFO L225 Difference]: With dead ends: 361 [2021-08-27 11:27:45,590 INFO L226 Difference]: Without dead ends: 263 [2021-08-27 11:27:45,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 163.3ms TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:27:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-08-27 11:27:45,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 212. [2021-08-27 11:27:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 193 states have (on average 1.2072538860103628) internal successors, (233), 211 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 233 transitions. [2021-08-27 11:27:45,595 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 233 transitions. Word has length 114 [2021-08-27 11:27:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:45,596 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 233 transitions. [2021-08-27 11:27:45,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.260869565217392) internal successors, (121), 23 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 233 transitions. [2021-08-27 11:27:45,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-08-27 11:27:45,596 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:45,596 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:45,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:45,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-08-27 11:27:45,805 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:45,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:45,805 INFO L82 PathProgramCache]: Analyzing trace with hash -460448286, now seen corresponding path program 18 times [2021-08-27 11:27:45,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:45,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681941980] [2021-08-27 11:27:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:45,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:46,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:46,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681941980] [2021-08-27 11:27:46,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681941980] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:46,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912780537] [2021-08-27 11:27:46,126 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:27:46,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:46,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:46,127 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:46,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-08-27 11:27:48,033 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-08-27 11:27:48,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:48,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 11:27:48,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:48,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912780537] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:48,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:48,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-08-27 11:27:48,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013180375] [2021-08-27 11:27:48,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 11:27:48,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 11:27:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:27:48,920 INFO L87 Difference]: Start difference. First operand 212 states and 233 transitions. Second operand has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:49,408 INFO L93 Difference]: Finished difference Result 317 states and 356 transitions. [2021-08-27 11:27:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 11:27:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 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 117 [2021-08-27 11:27:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:49,409 INFO L225 Difference]: With dead ends: 317 [2021-08-27 11:27:49,409 INFO L226 Difference]: Without dead ends: 214 [2021-08-27 11:27:49,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 99 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 512.3ms TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:27:49,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-08-27 11:27:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2021-08-27 11:27:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 193 states have (on average 1.2020725388601037) internal successors, (232), 211 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 232 transitions. [2021-08-27 11:27:49,415 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 232 transitions. Word has length 117 [2021-08-27 11:27:49,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:49,416 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 232 transitions. [2021-08-27 11:27:49,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.173913043478261) internal successors, (119), 23 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 232 transitions. [2021-08-27 11:27:49,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-27 11:27:49,417 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:49,417 INFO L512 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:49,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:49,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:49,625 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:49,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:49,625 INFO L82 PathProgramCache]: Analyzing trace with hash -40441289, now seen corresponding path program 19 times [2021-08-27 11:27:49,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:49,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178266110] [2021-08-27 11:27:49,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:49,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:49,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:49,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178266110] [2021-08-27 11:27:49,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178266110] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:49,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432909249] [2021-08-27 11:27:49,870 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:49,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:49,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:49,871 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:49,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-08-27 11:27:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:51,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 11:27:51,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:51,482 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:51,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432909249] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:51,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:51,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-08-27 11:27:51,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967530644] [2021-08-27 11:27:51,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-27 11:27:51,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:51,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-27 11:27:51,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:27:51,484 INFO L87 Difference]: Start difference. First operand 212 states and 232 transitions. Second operand has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:51,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:51,626 INFO L93 Difference]: Finished difference Result 366 states and 409 transitions. [2021-08-27 11:27:51,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 11:27:51,627 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 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 119 [2021-08-27 11:27:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:51,628 INFO L225 Difference]: With dead ends: 366 [2021-08-27 11:27:51,628 INFO L226 Difference]: Without dead ends: 268 [2021-08-27 11:27:51,628 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 188.3ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:27:51,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-08-27 11:27:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 217. [2021-08-27 11:27:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.202020202020202) internal successors, (238), 216 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 238 transitions. [2021-08-27 11:27:51,633 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 238 transitions. Word has length 119 [2021-08-27 11:27:51,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:51,633 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 238 transitions. [2021-08-27 11:27:51,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.25) internal successors, (126), 24 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 238 transitions. [2021-08-27 11:27:51,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-08-27 11:27:51,634 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:51,634 INFO L512 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:51,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:51,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-08-27 11:27:51,850 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:51,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:51,850 INFO L82 PathProgramCache]: Analyzing trace with hash 579965019, now seen corresponding path program 19 times [2021-08-27 11:27:51,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:51,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271687680] [2021-08-27 11:27:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:51,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:52,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:52,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271687680] [2021-08-27 11:27:52,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271687680] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:52,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84138763] [2021-08-27 11:27:52,227 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:27:52,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:52,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:52,228 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:52,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 11:27:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:53,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 45 conjunts are in the unsatisfiable core [2021-08-27 11:27:53,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:54,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84138763] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:54,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:54,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-08-27 11:27:54,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544147174] [2021-08-27 11:27:54,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-27 11:27:54,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:54,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-27 11:27:54,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:27:54,644 INFO L87 Difference]: Start difference. First operand 217 states and 238 transitions. Second operand has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:55,321 INFO L93 Difference]: Finished difference Result 322 states and 361 transitions. [2021-08-27 11:27:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 11:27:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-08-27 11:27:55,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:55,322 INFO L225 Difference]: With dead ends: 322 [2021-08-27 11:27:55,322 INFO L226 Difference]: Without dead ends: 219 [2021-08-27 11:27:55,322 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 103 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 588.0ms TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:27:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-08-27 11:27:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2021-08-27 11:27:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.196969696969697) internal successors, (237), 216 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:55,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 237 transitions. [2021-08-27 11:27:55,327 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 237 transitions. Word has length 122 [2021-08-27 11:27:55,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:55,327 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 237 transitions. [2021-08-27 11:27:55,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 237 transitions. [2021-08-27 11:27:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-08-27 11:27:55,328 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:55,328 INFO L512 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:55,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:55,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-08-27 11:27:55,528 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash -930635152, now seen corresponding path program 20 times [2021-08-27 11:27:55,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:55,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419389749] [2021-08-27 11:27:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:55,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:55,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:55,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419389749] [2021-08-27 11:27:55,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419389749] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:55,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836862670] [2021-08-27 11:27:55,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:55,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:55,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:55,755 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:55,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-08-27 11:27:57,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:57,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:57,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 24 conjunts are in the unsatisfiable core [2021-08-27 11:27:57,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:27:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:57,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836862670] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:57,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:27:57,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-08-27 11:27:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198576465] [2021-08-27 11:27:57,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-27 11:27:57,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-27 11:27:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:27:57,505 INFO L87 Difference]: Start difference. First operand 217 states and 237 transitions. Second operand has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:57,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:57,656 INFO L93 Difference]: Finished difference Result 371 states and 414 transitions. [2021-08-27 11:27:57,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 11:27:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 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 124 [2021-08-27 11:27:57,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:57,657 INFO L225 Difference]: With dead ends: 371 [2021-08-27 11:27:57,657 INFO L226 Difference]: Without dead ends: 273 [2021-08-27 11:27:57,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 144.6ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:27:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-08-27 11:27:57,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 222. [2021-08-27 11:27:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 221 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 243 transitions. [2021-08-27 11:27:57,663 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 243 transitions. Word has length 124 [2021-08-27 11:27:57,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:57,663 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 243 transitions. [2021-08-27 11:27:57,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 25 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 243 transitions. [2021-08-27 11:27:57,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-08-27 11:27:57,664 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:57,664 INFO L512 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:57,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-08-27 11:27:57,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-08-27 11:27:57,886 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:27:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:57,886 INFO L82 PathProgramCache]: Analyzing trace with hash -2057322110, now seen corresponding path program 20 times [2021-08-27 11:27:57,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:57,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705866145] [2021-08-27 11:27:57,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:57,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:58,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:58,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705866145] [2021-08-27 11:27:58,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705866145] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:27:58,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618980131] [2021-08-27 11:27:58,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:27:58,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:27:58,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:58,213 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:27:58,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-08-27 11:27:59,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:27:59,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:27:59,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 47 conjunts are in the unsatisfiable core [2021-08-27 11:27:59,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:00,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:00,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618980131] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:00,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:00,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-08-27 11:28:00,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813056552] [2021-08-27 11:28:00,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-27 11:28:00,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:00,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-27 11:28:00,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:28:00,983 INFO L87 Difference]: Start difference. First operand 222 states and 243 transitions. Second operand has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:01,640 INFO L93 Difference]: Finished difference Result 327 states and 366 transitions. [2021-08-27 11:28:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 11:28:01,641 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 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 127 [2021-08-27 11:28:01,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:01,642 INFO L225 Difference]: With dead ends: 327 [2021-08-27 11:28:01,642 INFO L226 Difference]: Without dead ends: 224 [2021-08-27 11:28:01,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 107 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 611.7ms TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:28:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-08-27 11:28:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2021-08-27 11:28:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 203 states have (on average 1.1921182266009853) internal successors, (242), 221 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 242 transitions. [2021-08-27 11:28:01,647 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 242 transitions. Word has length 127 [2021-08-27 11:28:01,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:01,647 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 242 transitions. [2021-08-27 11:28:01,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.16) internal successors, (129), 25 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 242 transitions. [2021-08-27 11:28:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-08-27 11:28:01,647 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:01,648 INFO L512 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:01,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-08-27 11:28:01,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-08-27 11:28:01,861 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1332861481, now seen corresponding path program 21 times [2021-08-27 11:28:01,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:01,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849320693] [2021-08-27 11:28:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:01,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:28:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:02,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:28:02,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849320693] [2021-08-27 11:28:02,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849320693] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:02,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507736120] [2021-08-27 11:28:02,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:28:02,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:02,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:28:02,192 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:28:02,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-08-27 11:28:06,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-08-27 11:28:06,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:28:06,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 11:28:06,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:07,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507736120] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:07,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:07,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-08-27 11:28:07,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253414089] [2021-08-27 11:28:07,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-27 11:28:07,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:07,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-27 11:28:07,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:28:07,078 INFO L87 Difference]: Start difference. First operand 222 states and 242 transitions. Second operand has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:07,194 INFO L93 Difference]: Finished difference Result 376 states and 419 transitions. [2021-08-27 11:28:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-27 11:28:07,194 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-08-27 11:28:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:07,195 INFO L225 Difference]: With dead ends: 376 [2021-08-27 11:28:07,195 INFO L226 Difference]: Without dead ends: 278 [2021-08-27 11:28:07,195 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 250.8ms TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:28:07,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-08-27 11:28:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 227. [2021-08-27 11:28:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 208 states have (on average 1.1923076923076923) internal successors, (248), 226 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 248 transitions. [2021-08-27 11:28:07,201 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 248 transitions. Word has length 129 [2021-08-27 11:28:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:07,201 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 248 transitions. [2021-08-27 11:28:07,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 248 transitions. [2021-08-27 11:28:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-08-27 11:28:07,202 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:07,202 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:07,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-08-27 11:28:07,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:07,412 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:07,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:07,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1823133509, now seen corresponding path program 21 times [2021-08-27 11:28:07,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:07,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011756016] [2021-08-27 11:28:07,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:07,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:28:07,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:07,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:28:07,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011756016] [2021-08-27 11:28:07,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011756016] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:07,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684315755] [2021-08-27 11:28:07,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:28:07,813 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:07,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:28:07,814 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:28:07,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-08-27 11:28:09,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-08-27 11:28:09,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:28:09,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 51 conjunts are in the unsatisfiable core [2021-08-27 11:28:09,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:10,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:10,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684315755] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:10,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:10,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-08-27 11:28:10,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505818644] [2021-08-27 11:28:10,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-27 11:28:10,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:10,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-27 11:28:10,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:28:10,965 INFO L87 Difference]: Start difference. First operand 227 states and 248 transitions. Second operand has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:11,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:11,459 INFO L93 Difference]: Finished difference Result 332 states and 371 transitions. [2021-08-27 11:28:11,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-27 11:28:11,460 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-08-27 11:28:11,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:11,460 INFO L225 Difference]: With dead ends: 332 [2021-08-27 11:28:11,460 INFO L226 Difference]: Without dead ends: 229 [2021-08-27 11:28:11,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 111 SyntacticMatches, 21 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 729.4ms TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:28:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-08-27 11:28:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2021-08-27 11:28:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 208 states have (on average 1.1875) internal successors, (247), 226 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 247 transitions. [2021-08-27 11:28:11,466 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 247 transitions. Word has length 132 [2021-08-27 11:28:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:11,466 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 247 transitions. [2021-08-27 11:28:11,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.153846153846154) internal successors, (134), 26 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:11,466 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 247 transitions. [2021-08-27 11:28:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-08-27 11:28:11,466 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:11,466 INFO L512 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:11,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-08-27 11:28:11,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:11,675 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:11,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:11,676 INFO L82 PathProgramCache]: Analyzing trace with hash 384084688, now seen corresponding path program 22 times [2021-08-27 11:28:11,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:11,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651057819] [2021-08-27 11:28:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:11,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:28:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:11,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:28:11,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651057819] [2021-08-27 11:28:11,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651057819] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:11,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34770862] [2021-08-27 11:28:11,980 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:28:11,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:28:11,981 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:28:11,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-08-27 11:28:13,741 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:28:13,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:28:13,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 11:28:13,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:14,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:14,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34770862] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:14,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:14,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-08-27 11:28:14,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894514442] [2021-08-27 11:28:14,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-27 11:28:14,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:14,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-27 11:28:14,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:28:14,055 INFO L87 Difference]: Start difference. First operand 227 states and 247 transitions. Second operand has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:14,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:14,182 INFO L93 Difference]: Finished difference Result 381 states and 424 transitions. [2021-08-27 11:28:14,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-27 11:28:14,182 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 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 134 [2021-08-27 11:28:14,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:14,183 INFO L225 Difference]: With dead ends: 381 [2021-08-27 11:28:14,183 INFO L226 Difference]: Without dead ends: 283 [2021-08-27 11:28:14,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 243.7ms TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:28:14,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-08-27 11:28:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 232. [2021-08-27 11:28:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 213 states have (on average 1.187793427230047) internal successors, (253), 231 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 253 transitions. [2021-08-27 11:28:14,189 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 253 transitions. Word has length 134 [2021-08-27 11:28:14,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:14,189 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 253 transitions. [2021-08-27 11:28:14,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.222222222222222) internal successors, (141), 27 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 253 transitions. [2021-08-27 11:28:14,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-08-27 11:28:14,190 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:14,190 INFO L512 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:14,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-08-27 11:28:14,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-08-27 11:28:14,411 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:14,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1045340894, now seen corresponding path program 22 times [2021-08-27 11:28:14,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:14,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662597290] [2021-08-27 11:28:14,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:14,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:28:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:14,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:28:14,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662597290] [2021-08-27 11:28:14,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662597290] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:14,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855388791] [2021-08-27 11:28:14,836 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:28:14,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:14,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:28:14,837 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:28:14,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-08-27 11:28:16,641 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:28:16,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:28:16,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 51 conjunts are in the unsatisfiable core [2021-08-27 11:28:16,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:17,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855388791] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:17,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:17,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-08-27 11:28:17,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468606445] [2021-08-27 11:28:17,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-27 11:28:17,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:17,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-27 11:28:17,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:28:17,921 INFO L87 Difference]: Start difference. First operand 232 states and 253 transitions. Second operand has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:18,544 INFO L93 Difference]: Finished difference Result 337 states and 376 transitions. [2021-08-27 11:28:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-27 11:28:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 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 137 [2021-08-27 11:28:18,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:18,546 INFO L225 Difference]: With dead ends: 337 [2021-08-27 11:28:18,546 INFO L226 Difference]: Without dead ends: 234 [2021-08-27 11:28:18,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 115 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 796.2ms TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:28:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-08-27 11:28:18,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 232. [2021-08-27 11:28:18,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 213 states have (on average 1.1830985915492958) internal successors, (252), 231 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) [2021-08-27 11:28:18,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2021-08-27 11:28:18,551 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 137 [2021-08-27 11:28:18,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:18,551 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2021-08-27 11:28:18,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.148148148148148) internal successors, (139), 27 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2021-08-27 11:28:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-08-27 11:28:18,552 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:18,552 INFO L512 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:18,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-08-27 11:28:18,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:18,761 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:18,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:18,761 INFO L82 PathProgramCache]: Analyzing trace with hash 518478199, now seen corresponding path program 23 times [2021-08-27 11:28:18,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:18,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098248394] [2021-08-27 11:28:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:18,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:28:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:19,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:28:19,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098248394] [2021-08-27 11:28:19,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098248394] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:19,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667933825] [2021-08-27 11:28:19,093 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:28:19,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:28:19,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:28:19,094 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:28:19,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-08-27 11:28:20,925 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-08-27 11:28:20,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:28:20,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-27 11:28:20,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:28:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:28:21,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667933825] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:28:21,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:28:21,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-08-27 11:28:21,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990097573] [2021-08-27 11:28:21,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-27 11:28:21,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:28:21,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-27 11:28:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-08-27 11:28:21,237 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:21,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:28:21,375 INFO L93 Difference]: Finished difference Result 386 states and 429 transitions. [2021-08-27 11:28:21,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-27 11:28:21,375 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 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 139 [2021-08-27 11:28:21,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:28:21,376 INFO L225 Difference]: With dead ends: 386 [2021-08-27 11:28:21,376 INFO L226 Difference]: Without dead ends: 288 [2021-08-27 11:28:21,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 274.7ms TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-08-27 11:28:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-08-27 11:28:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 237. [2021-08-27 11:28:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 218 states have (on average 1.18348623853211) internal successors, (258), 236 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 258 transitions. [2021-08-27 11:28:21,382 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 258 transitions. Word has length 139 [2021-08-27 11:28:21,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:28:21,382 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 258 transitions. [2021-08-27 11:28:21,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:28:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 258 transitions. [2021-08-27 11:28:21,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-08-27 11:28:21,383 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:28:21,383 INFO L512 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:28:21,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-08-27 11:28:21,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-08-27 11:28:21,599 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 43 more)] === [2021-08-27 11:28:21,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:28:21,599 INFO L82 PathProgramCache]: Analyzing trace with hash -237774565, now seen corresponding path program 23 times [2021-08-27 11:28:21,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:28:21,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60429726] [2021-08-27 11:28:21,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:28:21,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:28:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:28:21,616 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 11:28:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:28:21,658 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 11:28:21,658 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 11:28:21,659 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,661 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:28:21,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-08-27 11:28:21,668 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:28:21,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:28:21 BoogieIcfgContainer [2021-08-27 11:28:21,707 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:28:21,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:28:21,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:28:21,708 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:28:21,708 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:53" (3/4) ... [2021-08-27 11:28:21,710 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 11:28:21,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:28:21,711 INFO L168 Benchmark]: Toolchain (without parser) took 88719.99 ms. Allocated memory was 48.2 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 24.0 MB in the beginning and 809.4 MB in the end (delta: -785.4 MB). Peak memory consumption was 385.3 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,711 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.5 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:28:21,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.84 ms. Allocated memory was 48.2 MB in the beginning and 65.0 MB in the end (delta: 16.8 MB). Free memory was 23.8 MB in the beginning and 47.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 65.0 MB. Free memory was 46.8 MB in the beginning and 44.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,712 INFO L168 Benchmark]: Boogie Preprocessor took 38.33 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,712 INFO L168 Benchmark]: RCFGBuilder took 511.46 ms. Allocated memory is still 65.0 MB. Free memory was 42.6 MB in the beginning and 35.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,712 INFO L168 Benchmark]: TraceAbstraction took 87857.35 ms. Allocated memory was 65.0 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 35.0 MB in the beginning and 809.4 MB in the end (delta: -774.4 MB). Peak memory consumption was 380.9 MB. Max. memory is 16.1 GB. [2021-08-27 11:28:21,712 INFO L168 Benchmark]: Witness Printer took 2.34 ms. Allocated memory is still 1.2 GB. Free memory is still 809.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:28:21,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.5 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.84 ms. Allocated memory was 48.2 MB in the beginning and 65.0 MB in the end (delta: 16.8 MB). Free memory was 23.8 MB in the beginning and 47.0 MB in the end (delta: -23.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.97 ms. Allocated memory is still 65.0 MB. Free memory was 46.8 MB in the beginning and 44.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.33 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 511.46 ms. Allocated memory is still 65.0 MB. Free memory was 42.6 MB in the beginning and 35.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 87857.35 ms. Allocated memory was 65.0 MB in the beginning and 1.2 GB in the end (delta: 1.2 GB). Free memory was 35.0 MB in the beginning and 809.4 MB in the end (delta: -774.4 MB). Peak memory consumption was 380.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.34 ms. Allocated memory is still 1.2 GB. Free memory is still 809.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 69, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sa ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] EXPR (e + 128) << 24U [L69] res = m | (unsigned int )((e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 163 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 87774.2ms, OverallIterations: 57, TraceHistogramMax: 25, EmptinessCheckTime: 33.8ms, AutomataDifference: 10748.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 8543 SDtfs, 6678 SDslu, 35807 SDs, 0 SdLazy, 19627 SolverSat, 1029 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7543.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4492 GetRequests, 3555 SyntacticMatches, 253 SemanticMatches, 684 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1080 ImplicationChecksByTransitivity, 9053.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=56, InterpolantAutomatonStates: 793, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 313.3ms AutomataMinimizationTime, 56 MinimizatonAttempts, 1552 StatesRemovedByMinimization, 53 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 413.2ms SsaConstructionTime, 9035.9ms SatisfiabilityAnalysisTime, 25779.3ms InterpolantComputationTime, 7905 NumberOfCodeBlocks, 7905 NumberOfCodeBlocksAsserted, 386 NumberOfCheckSat, 7662 ConstructedInterpolants, 0 QuantifiedInterpolants, 36376 SizeOfPredicates, 67 NumberOfNonLiveVariables, 9417 ConjunctsInSsa, 1032 ConjunctsInUnsatCore, 101 InterpolantComputations, 11 PerfectInterpolantSequences, 5/44441 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 11:28:21,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...