./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf 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/gcd_4.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 9c20edfd7ede05443471560aa2c7be34d4e8c171 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:45:39,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:45:39,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:45:39,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:45:39,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:45:39,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:45:39,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:45:39,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:45:39,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:45:39,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:45:39,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:45:39,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:45:39,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:45:39,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:45:39,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:45:39,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:45:39,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:45:39,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:45:39,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:45:39,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:45:39,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:45:39,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:45:39,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:45:39,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:45:39,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:45:39,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:45:39,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:45:39,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:45:39,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:45:39,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:45:39,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:45:39,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:45:39,847 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:45:39,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:45:39,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:45:39,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:45:39,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:45:39,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:45:39,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:45:39,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:45:39,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:45:39,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-30 22:45:39,874 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:45:39,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:45:39,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:45:39,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:45:39,877 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:45:39,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:45:39,878 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:45:39,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:45:39,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 22:45:39,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:45:39,879 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:45:39,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:45:39,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:39,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:45:39,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:45:39,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:45:39,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c20edfd7ede05443471560aa2c7be34d4e8c171 [2021-08-30 22:45:40,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:45:40,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:45:40,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:45:40,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:45:40,161 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:45:40,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/gcd_4.c [2021-08-30 22:45:40,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e39aee4a/9d07d287e83c460aa5e4c0f571b1c7fa/FLAG69cc5b364 [2021-08-30 22:45:40,528 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:45:40,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/gcd_4.c [2021-08-30 22:45:40,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e39aee4a/9d07d287e83c460aa5e4c0f571b1c7fa/FLAG69cc5b364 [2021-08-30 22:45:40,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e39aee4a/9d07d287e83c460aa5e4c0f571b1c7fa [2021-08-30 22:45:40,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:45:40,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:45:40,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:40,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:45:40,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:45:40,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:40" (1/1) ... [2021-08-30 22:45:40,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a8c783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:40, skipping insertion in model container [2021-08-30 22:45:40,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:45:40" (1/1) ... [2021-08-30 22:45:40,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:45:40,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:45:41,084 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/gcd_4.c[357,370] [2021-08-30 22:45:41,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:41,098 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:45:41,107 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/gcd_4.c[357,370] [2021-08-30 22:45:41,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:45:41,128 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:45:41,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41 WrapperNode [2021-08-30 22:45:41,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:45:41,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:41,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:45:41,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:45:41,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:45:41,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:45:41,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:45:41,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:45:41,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:45:41,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:45:41,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:45:41,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:45:41,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (1/1) ... [2021-08-30 22:45:41,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:45:41,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:41,233 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) [2021-08-30 22:45:41,256 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 [2021-08-30 22:45:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 22:45:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 22:45:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:45:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:45:41,418 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:45:41,419 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-30 22:45:41,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:41 BoogieIcfgContainer [2021-08-30 22:45:41,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:45:41,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:45:41,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:45:41,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:45:41,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:45:40" (1/3) ... [2021-08-30 22:45:41,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d62049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:41, skipping insertion in model container [2021-08-30 22:45:41,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:45:41" (2/3) ... [2021-08-30 22:45:41,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d62049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:45:41, skipping insertion in model container [2021-08-30 22:45:41,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:41" (3/3) ... [2021-08-30 22:45:41,430 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_4.c [2021-08-30 22:45:41,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:45:41,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-08-30 22:45:41,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:45:41,478 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 [2021-08-30 22:45:41,478 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-30 22:45:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:45:41,498 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:41,498 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:45:41,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:41,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:41,502 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-08-30 22:45:41,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:41,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782444659] [2021-08-30 22:45:41,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:41,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:41,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:41,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:41,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782444659] [2021-08-30 22:45:41,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782444659] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:41,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:41,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:41,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744124051] [2021-08-30 22:45:41,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:41,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:41,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:41,707 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 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 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:41,851 INFO L93 Difference]: Finished difference Result 91 states and 111 transitions. [2021-08-30 22:45:41,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2021-08-30 22:45:41,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:41,861 INFO L225 Difference]: With dead ends: 91 [2021-08-30 22:45:41,861 INFO L226 Difference]: Without dead ends: 29 [2021-08-30 22:45:41,867 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:41,870 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 32 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.82ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:41,871 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 0 Invalid, 62 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 125.82ms Time] [2021-08-30 22:45:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-30 22:45:41,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2021-08-30 22:45:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-08-30 22:45:41,894 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 4 [2021-08-30 22:45:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:41,894 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-08-30 22:45:41,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-08-30 22:45:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:45:41,895 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:41,895 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:45:41,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:45:41,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:41,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:41,896 INFO L82 PathProgramCache]: Analyzing trace with hash 28699785, now seen corresponding path program 1 times [2021-08-30 22:45:41,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:41,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683275908] [2021-08-30 22:45:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:41,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:41,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:41,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683275908] [2021-08-30 22:45:41,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683275908] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:41,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:41,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:41,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257650937] [2021-08-30 22:45:41,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:41,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:41,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:41,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:41,930 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:41,969 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-08-30 22:45:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:45:41,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:41,970 INFO L225 Difference]: With dead ends: 40 [2021-08-30 22:45:41,970 INFO L226 Difference]: Without dead ends: 25 [2021-08-30 22:45:41,970 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:41,971 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.68ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:41,971 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 34.68ms Time] [2021-08-30 22:45:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-08-30 22:45:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 15. [2021-08-30 22:45:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 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) [2021-08-30 22:45:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-08-30 22:45:41,974 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 5 [2021-08-30 22:45:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:41,974 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-08-30 22:45:41,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-08-30 22:45:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-30 22:45:41,974 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:41,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:41,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:45:41,975 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:41,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:41,975 INFO L82 PathProgramCache]: Analyzing trace with hash 302707703, now seen corresponding path program 1 times [2021-08-30 22:45:41,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:41,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889917777] [2021-08-30 22:45:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:41,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:42,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889917777] [2021-08-30 22:45:42,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889917777] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:42,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:42,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:45:42,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095450896] [2021-08-30 22:45:42,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:42,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:45:42,023 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:42,075 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-08-30 22:45:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:42,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-30 22:45:42,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:42,077 INFO L225 Difference]: With dead ends: 30 [2021-08-30 22:45:42,077 INFO L226 Difference]: Without dead ends: 28 [2021-08-30 22:45:42,077 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.16ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:45:42,078 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.42ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.09ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:42,078 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.42ms Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 46.09ms Time] [2021-08-30 22:45:42,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-30 22:45:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2021-08-30 22:45:42,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 21 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) [2021-08-30 22:45:42,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-08-30 22:45:42,099 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 8 [2021-08-30 22:45:42,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:42,099 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-08-30 22:45:42,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,099 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-08-30 22:45:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-30 22:45:42,100 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:42,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:42,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:45:42,100 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:42,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:42,101 INFO L82 PathProgramCache]: Analyzing trace with hash 302707895, now seen corresponding path program 1 times [2021-08-30 22:45:42,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:42,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425923837] [2021-08-30 22:45:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:42,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:42,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425923837] [2021-08-30 22:45:42,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425923837] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:42,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:45:42,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:45:42,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179399988] [2021-08-30 22:45:42,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:45:42,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:45:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:42,147 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:42,171 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-08-30 22:45:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:45:42,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-30 22:45:42,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:42,172 INFO L225 Difference]: With dead ends: 33 [2021-08-30 22:45:42,173 INFO L226 Difference]: Without dead ends: 19 [2021-08-30 22:45:42,173 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:45:42,174 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.27ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:42,174 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 21.27ms Time] [2021-08-30 22:45:42,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-08-30 22:45:42,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-08-30 22:45:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-08-30 22:45:42,181 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8 [2021-08-30 22:45:42,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:42,181 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-08-30 22:45:42,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,181 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-08-30 22:45:42,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 22:45:42,181 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:42,182 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:42,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:45:42,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:42,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:42,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1796493298, now seen corresponding path program 1 times [2021-08-30 22:45:42,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:42,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807743992] [2021-08-30 22:45:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:42,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:42,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807743992] [2021-08-30 22:45:42,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807743992] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:42,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558239122] [2021-08-30 22:45:42,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:42,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:42,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:42,233 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) [2021-08-30 22:45:42,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-30 22:45:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 22:45:42,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:42,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558239122] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:42,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:42,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-30 22:45:42,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508230728] [2021-08-30 22:45:42,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:45:42,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:45:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:42,435 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:42,475 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-08-30 22:45:42,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:42,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-30 22:45:42,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:42,476 INFO L225 Difference]: With dead ends: 29 [2021-08-30 22:45:42,476 INFO L226 Difference]: Without dead ends: 27 [2021-08-30 22:45:42,476 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.54ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:45:42,477 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.22ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:42,477 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 36.22ms Time] [2021-08-30 22:45:42,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-30 22:45:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-08-30 22:45:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.380952380952381) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-08-30 22:45:42,480 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 12 [2021-08-30 22:45:42,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:42,480 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-08-30 22:45:42,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-08-30 22:45:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 22:45:42,481 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:42,481 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:42,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:42,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:42,697 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:42,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1796493490, now seen corresponding path program 1 times [2021-08-30 22:45:42,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:42,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124967416] [2021-08-30 22:45:42,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:42,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:42,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124967416] [2021-08-30 22:45:42,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124967416] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:42,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805745256] [2021-08-30 22:45:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:42,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:42,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:42,758 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) [2021-08-30 22:45:42,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-30 22:45:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:42,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-30 22:45:42,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:42,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805745256] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:42,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:42,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2021-08-30 22:45:42,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413199866] [2021-08-30 22:45:42,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 22:45:42,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:42,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 22:45:42,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-30 22:45:42,949 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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) [2021-08-30 22:45:43,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:43,040 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2021-08-30 22:45:43,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 22:45:43,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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 12 [2021-08-30 22:45:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:43,042 INFO L225 Difference]: With dead ends: 49 [2021-08-30 22:45:43,042 INFO L226 Difference]: Without dead ends: 37 [2021-08-30 22:45:43,043 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 49.38ms TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:45:43,049 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.45ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.63ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:43,050 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 88 Unknown, 0 Unchecked, 1.45ms Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 64.63ms Time] [2021-08-30 22:45:43,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-30 22:45:43,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-08-30 22:45:43,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.25) internal successors, (40), 34 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-08-30 22:45:43,066 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 12 [2021-08-30 22:45:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:43,066 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-08-30 22:45:43,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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) [2021-08-30 22:45:43,067 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-08-30 22:45:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 22:45:43,068 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:43,068 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:43,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:43,280 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,SelfDestructingSolverStorable5 [2021-08-30 22:45:43,281 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash 620020322, now seen corresponding path program 1 times [2021-08-30 22:45:43,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:43,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255243179] [2021-08-30 22:45:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:43,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:43,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:43,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255243179] [2021-08-30 22:45:43,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255243179] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:43,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012594152] [2021-08-30 22:45:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:43,352 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:43,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:43,362 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) [2021-08-30 22:45:43,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-30 22:45:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:43,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 22:45:43,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:43,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:43,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012594152] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:43,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:43,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2021-08-30 22:45:43,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819856675] [2021-08-30 22:45:43,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 22:45:43,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:43,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 22:45:43,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:45:43,549 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:43,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:43,609 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2021-08-30 22:45:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 22:45:43,610 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 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 [2021-08-30 22:45:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:43,613 INFO L225 Difference]: With dead ends: 46 [2021-08-30 22:45:43,613 INFO L226 Difference]: Without dead ends: 35 [2021-08-30 22:45:43,614 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 63.77ms TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-08-30 22:45:43,616 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 16 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.38ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:43,616 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 0 Invalid, 70 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 38.38ms Time] [2021-08-30 22:45:43,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-30 22:45:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-08-30 22:45:43,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.21875) internal successors, (39), 34 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) [2021-08-30 22:45:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2021-08-30 22:45:43,630 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2021-08-30 22:45:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:43,630 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2021-08-30 22:45:43,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2021-08-30 22:45:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 22:45:43,631 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:43,631 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:43,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:43,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:43,833 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:43,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:43,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1682922589, now seen corresponding path program 2 times [2021-08-30 22:45:43,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:43,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789948278] [2021-08-30 22:45:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:43,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:43,899 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-30 22:45:43,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:43,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789948278] [2021-08-30 22:45:43,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789948278] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:43,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426898320] [2021-08-30 22:45:43,900 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 22:45:43,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:43,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:43,900 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) [2021-08-30 22:45:43,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-30 22:45:43,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-30 22:45:43,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:45:43,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-30 22:45:43,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:44,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:44,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426898320] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:44,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:44,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2021-08-30 22:45:44,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123461706] [2021-08-30 22:45:44,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:45:44,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:44,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:45:44,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:45:44,071 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:44,114 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2021-08-30 22:45:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 22:45:44,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2021-08-30 22:45:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:44,116 INFO L225 Difference]: With dead ends: 45 [2021-08-30 22:45:44,116 INFO L226 Difference]: Without dead ends: 30 [2021-08-30 22:45:44,116 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.24ms TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:45:44,117 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.03ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:44,117 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 63 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 38.03ms Time] [2021-08-30 22:45:44,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-30 22:45:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-08-30 22:45:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:44,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2021-08-30 22:45:44,119 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 24 [2021-08-30 22:45:44,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:44,119 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2021-08-30 22:45:44,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:44,120 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2021-08-30 22:45:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 22:45:44,120 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:44,120 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:44,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:44,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:44,331 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:44,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1505428003, now seen corresponding path program 2 times [2021-08-30 22:45:44,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:44,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289988915] [2021-08-30 22:45:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:44,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:44,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:44,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289988915] [2021-08-30 22:45:44,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289988915] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:44,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800521476] [2021-08-30 22:45:44,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 22:45:44,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:44,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:44,395 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) [2021-08-30 22:45:44,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-30 22:45:44,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-30 22:45:44,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:45:44,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 22:45:44,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:44,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:44,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800521476] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:44,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:44,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2021-08-30 22:45:44,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450225936] [2021-08-30 22:45:44,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 22:45:44,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:44,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 22:45:44,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-08-30 22:45:44,726 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:45,016 INFO L93 Difference]: Finished difference Result 75 states and 93 transitions. [2021-08-30 22:45:45,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-30 22:45:45,017 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 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 24 [2021-08-30 22:45:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:45,017 INFO L225 Difference]: With dead ends: 75 [2021-08-30 22:45:45,017 INFO L226 Difference]: Without dead ends: 66 [2021-08-30 22:45:45,018 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 245.75ms TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2021-08-30 22:45:45,018 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 83 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.58ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 142.98ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:45,018 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 0 Invalid, 284 Unknown, 0 Unchecked, 3.58ms Time], IncrementalHoareTripleChecker [33 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 142.98ms Time] [2021-08-30 22:45:45,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-08-30 22:45:45,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2021-08-30 22:45:45,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.2) internal successors, (60), 51 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2021-08-30 22:45:45,022 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 24 [2021-08-30 22:45:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:45,022 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2021-08-30 22:45:45,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2021-08-30 22:45:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 22:45:45,023 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:45,023 INFO L513 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:45,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:45,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:45,233 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:45,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1505427811, now seen corresponding path program 1 times [2021-08-30 22:45:45,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:45,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091843608] [2021-08-30 22:45:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:45,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:45,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:45,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091843608] [2021-08-30 22:45:45,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091843608] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:45,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150373637] [2021-08-30 22:45:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:45,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:45,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:45,297 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) [2021-08-30 22:45:45,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-30 22:45:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:45,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-30 22:45:45,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:45,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:45,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150373637] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:45,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:45,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2021-08-30 22:45:45,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961765926] [2021-08-30 22:45:45,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-30 22:45:45,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:45,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-30 22:45:45,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-08-30 22:45:45,642 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:46,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:46,251 INFO L93 Difference]: Finished difference Result 152 states and 191 transitions. [2021-08-30 22:45:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-30 22:45:46,252 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 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 24 [2021-08-30 22:45:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:46,252 INFO L225 Difference]: With dead ends: 152 [2021-08-30 22:45:46,252 INFO L226 Difference]: Without dead ends: 151 [2021-08-30 22:45:46,253 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 516.87ms TimeCoverageRelationStatistics Valid=595, Invalid=1211, Unknown=0, NotChecked=0, Total=1806 [2021-08-30 22:45:46,253 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 133 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.18ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 189.54ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:46,254 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 0 Invalid, 367 Unknown, 0 Unchecked, 2.18ms Time], IncrementalHoareTripleChecker [53 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 189.54ms Time] [2021-08-30 22:45:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-30 22:45:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 121. [2021-08-30 22:45:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 120 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) [2021-08-30 22:45:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2021-08-30 22:45:46,268 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 24 [2021-08-30 22:45:46,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:46,269 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2021-08-30 22:45:46,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.117647058823529) internal successors, (70), 18 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2021-08-30 22:45:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-30 22:45:46,269 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:46,269 INFO L513 BasicCegarLoop]: trace histogram [8, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:46,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-08-30 22:45:46,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:46,475 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:46,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1080699070, now seen corresponding path program 3 times [2021-08-30 22:45:46,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:46,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24195345] [2021-08-30 22:45:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:46,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-30 22:45:46,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:46,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24195345] [2021-08-30 22:45:46,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24195345] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:46,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664761190] [2021-08-30 22:45:46,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-30 22:45:46,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:46,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:46,543 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) [2021-08-30 22:45:46,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-30 22:45:46,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-30 22:45:46,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:45:46,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 22:45:46,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:46,674 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-08-30 22:45:46,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:45:46,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664761190] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:45:46,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:45:46,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-08-30 22:45:46,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28293962] [2021-08-30 22:45:46,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:45:46,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:46,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:45:46,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:45:46,676 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:46,701 INFO L93 Difference]: Finished difference Result 121 states and 152 transitions. [2021-08-30 22:45:46,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:45:46,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-08-30 22:45:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:46,703 INFO L225 Difference]: With dead ends: 121 [2021-08-30 22:45:46,703 INFO L226 Difference]: Without dead ends: 120 [2021-08-30 22:45:46,704 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 44.74ms TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-08-30 22:45:46,704 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.26ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:46,705 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 29 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 14.26ms Time] [2021-08-30 22:45:46,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-08-30 22:45:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 84. [2021-08-30 22:45:46,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 83 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) [2021-08-30 22:45:46,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2021-08-30 22:45:46,717 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 36 [2021-08-30 22:45:46,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:46,717 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2021-08-30 22:45:46,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2021-08-30 22:45:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-30 22:45:46,722 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:45:46,722 INFO L513 BasicCegarLoop]: trace histogram [9, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-08-30 22:45:46,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:46,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:46,938 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-08-30 22:45:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:45:46,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1666612855, now seen corresponding path program 2 times [2021-08-30 22:45:46,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:45:46,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26042474] [2021-08-30 22:45:46,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:45:46,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:45:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:45:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:45:47,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:45:47,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26042474] [2021-08-30 22:45:47,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26042474] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:45:47,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502426172] [2021-08-30 22:45:47,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 22:45:47,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:45:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:45:47,047 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) [2021-08-30 22:45:47,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-30 22:45:47,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-30 22:45:47,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:45:47,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-30 22:45:47,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:45:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 40 proven. 54 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-30 22:45:47,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:45:47,793 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 38 proven. 56 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-30 22:45:47,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502426172] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:45:47,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:45:47,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 25 [2021-08-30 22:45:47,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015871452] [2021-08-30 22:45:47,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-30 22:45:47,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:45:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-30 22:45:47,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2021-08-30 22:45:47,795 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:47,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:45:47,934 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2021-08-30 22:45:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 22:45:47,935 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 0 states have call successors, (0), 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 40 [2021-08-30 22:45:47,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:45:47,935 INFO L225 Difference]: With dead ends: 108 [2021-08-30 22:45:47,935 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:45:47,936 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 286.99ms TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-08-30 22:45:47,936 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 98 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 100.18ms IncrementalHoareTripleChecker+Time [2021-08-30 22:45:47,936 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 0 Invalid, 293 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [34 Valid, 216 Invalid, 0 Unknown, 43 Unchecked, 100.18ms Time] [2021-08-30 22:45:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:45:47,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:45:47,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:45:47,937 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2021-08-30 22:45:47,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:45:47,937 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:45:47,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 25 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:45:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:45:47,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:45:47,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-08-30 22:45:47,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-08-30 22:45:47,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-08-30 22:45:47,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-08-30 22:45:47,939 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-08-30 22:45:47,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-08-30 22:45:47,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-08-30 22:45:47,940 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-08-30 22:45:47,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-30 22:45:48,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-30 22:45:48,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:45:48,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:45:48,274 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-08-30 22:45:48,274 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L15-3(lines 13 29) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L861 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L7-3(lines 7 9) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L861 garLoopResultBuilder]: At program point L7-5(lines 6 11) the Hoare annotation is: true [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L7-6(lines 7 9) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L861 garLoopResultBuilder]: At program point L7-8(lines 6 11) the Hoare annotation is: true [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:45:48,275 INFO L861 garLoopResultBuilder]: At program point L28(lines 12 29) the Hoare annotation is: true [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 27) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L22(lines 22 26) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 21 27) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_gcd_test_~b 18)) (.cse2 (<= 18 ULTIMATE.start_gcd_test_~b)) (.cse3 (+ ULTIMATE.start_gcd_test_~b ULTIMATE.start_gcd_test_~a))) (or (let ((.cse0 (+ ULTIMATE.start_gcd_test_~a (* 3 ULTIMATE.start_gcd_test_~b)))) (and (<= 63 .cse0) .cse1 .cse2 (<= .cse0 63))) (and .cse1 (<= 63 .cse3) .cse2 (<= .cse3 63)) (and (= ULTIMATE.start_gcd_test_~a 63) .cse1 .cse2) (let ((.cse4 (+ ULTIMATE.start_gcd_test_~a (* 2 ULTIMATE.start_gcd_test_~b)))) (and .cse1 (<= 63 .cse4) (<= .cse4 63) .cse2)) (and (<= (div (+ (- 63) ULTIMATE.start_gcd_test_~a) (- 3)) 18) (<= 18 (div (+ (* ULTIMATE.start_gcd_test_~a (- 1)) 63) 3)) (<= 18 .cse3) (<= .cse3 18)) (and (<= (div (+ (- 63) ULTIMATE.start_gcd_test_~b ULTIMATE.start_gcd_test_~a) (- 3)) 18) (<= 0 ULTIMATE.start_gcd_test_~b) (<= (div (div (+ (- 108) (* ULTIMATE.start_gcd_test_~b (- 1))) 2) (- 3)) 18) (<= ULTIMATE.start_gcd_test_~a 2147483647)))) [2021-08-30 22:45:48,276 INFO L861 garLoopResultBuilder]: At program point L47(lines 32 48) the Hoare annotation is: true [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L14-2(line 14) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point L14-4(lines 13 29) no Hoare annotation was computed. [2021-08-30 22:45:48,276 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-08-30 22:45:48,279 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:45:48,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:45:48 BoogieIcfgContainer [2021-08-30 22:45:48,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:45:48,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:45:48,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:45:48,295 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:45:48,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:45:41" (3/4) ... [2021-08-30 22:45:48,297 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:45:48,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-08-30 22:45:48,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-30 22:45:48,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-30 22:45:48,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-30 22:45:48,322 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:45:48,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:45:48,323 INFO L158 Benchmark]: Toolchain (without parser) took 7367.21ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 40.4MB in the beginning and 39.8MB in the end (delta: 548.6kB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,323 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:45:48,323 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.68ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 30.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,323 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.78ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 29.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,323 INFO L158 Benchmark]: Boogie Preprocessor took 38.27ms. Allocated memory is still 60.8MB. Free memory was 29.2MB in the beginning and 44.9MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,323 INFO L158 Benchmark]: RCFGBuilder took 223.27ms. Allocated memory is still 60.8MB. Free memory was 44.9MB in the beginning and 35.7MB in the end (delta: 9.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,324 INFO L158 Benchmark]: TraceAbstraction took 6871.98ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 43.4MB in the end (delta: -8.1MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,324 INFO L158 Benchmark]: Witness Printer took 27.78ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 39.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:45:48,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 43.5MB in the beginning and 43.5MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.68ms. Allocated memory is still 60.8MB. Free memory was 40.1MB in the beginning and 30.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.78ms. Allocated memory is still 60.8MB. Free memory was 30.8MB in the beginning and 29.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.27ms. Allocated memory is still 60.8MB. Free memory was 29.2MB in the beginning and 44.9MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 223.27ms. Allocated memory is still 60.8MB. Free memory was 44.9MB in the beginning and 35.7MB in the end (delta: 9.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 6871.98ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 43.4MB in the end (delta: -8.1MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 27.78ms. Allocated memory is still 73.4MB. Free memory was 42.7MB in the beginning and 39.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6815.10ms, OverallIterations: 12, TraceHistogramMax: 9, EmptinessCheckTime: 19.03ms, AutomataDifference: 1655.43ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 121.17ms, InitialAbstractionConstructionTime: 8.80ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 445 SdHoareTripleChecker+Valid, 852.09ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 445 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 665.01ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 43 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1197 IncrementalHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 0 mSDtfsCounter, 1197 mSolverCounterSat, 12.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 404 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 1303.14ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=10, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 103.36ms AutomataMinimizationTime, 12 MinimizatonAttempts, 110 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 27 NumberOfFragments, 128 HoareAnnotationTreeSize, 6 FomulaSimplifications, 406 FormulaSimplificationTreeSizeReduction, 19.72ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 112 FormulaSimplificationTreeSizeReductionInter, 96.91ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 49.79ms SsaConstructionTime, 169.14ms SatisfiabilityAnalysisTime, 2645.59ms InterpolantComputationTime, 409 NumberOfCodeBlocks, 397 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 504 ConstructedInterpolants, 15 QuantifiedInterpolants, 3496 SizeOfPredicates, 34 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 25 InterpolantComputations, 7 PerfectInterpolantSequences, 268/748 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((((63 <= a + 3 * b && b <= 18) && 18 <= b) && a + 3 * b <= 63) || (((b <= 18 && 63 <= b + a) && 18 <= b) && b + a <= 63)) || ((a == 63 && b <= 18) && 18 <= b)) || (((b <= 18 && 63 <= a + 2 * b) && a + 2 * b <= 63) && 18 <= b)) || ((((-63 + a) / -3 <= 18 && 18 <= (a * -1 + 63) / 3) && 18 <= b + a) && b + a <= 18)) || ((((-63 + b + a) / -3 <= 18 && 0 <= b) && (-108 + b * -1) / 2 / -3 <= 18) && a <= 2147483647) RESULT: Ultimate proved your program to be correct! [2021-08-30 22:45:48,345 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...