./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/uthash-2.0.2/uthash_SFH_test4-3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:17:52,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:17:52,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:17:52,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:17:52,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:17:52,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:17:52,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:17:52,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:17:52,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:17:52,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:17:52,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:17:52,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:17:52,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:17:52,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:17:52,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:17:52,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:17:52,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:17:52,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:17:52,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:17:52,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:17:52,150 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:17:52,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:17:52,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:17:52,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:17:52,154 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:17:52,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:17:52,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:17:52,159 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:17:52,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:17:52,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:17:52,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:17:52,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:17:52,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:17:52,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:17:52,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:17:52,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:17:52,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:17:52,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:17:52,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:17:52,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:17:52,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:17:52,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:17:52,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 01:17:52,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:17:52,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:17:52,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:17:52,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:17:52,202 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 01:17:52,203 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 01:17:52,203 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:17:52,203 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:17:52,203 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:17:52,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:17:52,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 01:17:52,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 01:17:52,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:17:52,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:17:52,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 01:17:52,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:17:52,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:17:52,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 01:17:52,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 01:17:52,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:17:52,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 01:17:52,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 01:17:52,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2022-07-22 01:17:52,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:17:52,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:17:52,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:17:52,524 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:17:52,524 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:17:52,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2022-07-22 01:17:52,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d33a24/a985687357c74b12a9df6282e6f001a6/FLAGd3619a402 [2022-07-22 01:17:53,024 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:17:53,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2022-07-22 01:17:53,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d33a24/a985687357c74b12a9df6282e6f001a6/FLAGd3619a402 [2022-07-22 01:17:53,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d33a24/a985687357c74b12a9df6282e6f001a6 [2022-07-22 01:17:53,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:17:53,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:17:53,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:17:53,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:17:53,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:17:53,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:53,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fc47e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53, skipping insertion in model container [2022-07-22 01:17:53,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:53,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:17:53,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:17:53,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i[33021,33034] [2022-07-22 01:17:53,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:17:53,766 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:17:53,785 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i[33021,33034] [2022-07-22 01:17:53,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:17:53,880 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:17:53,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53 WrapperNode [2022-07-22 01:17:53,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:17:53,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:17:53,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:17:53,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:17:53,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:53,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:53,990 INFO L137 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1451 [2022-07-22 01:17:53,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:17:54,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:17:54,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:17:54,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:17:54,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:17:54,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:17:54,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:17:54,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:17:54,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (1/1) ... [2022-07-22 01:17:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 01:17:54,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:17:54,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 01:17:54,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 01:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 01:17:54,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 01:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 01:17:54,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 01:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 01:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 01:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:17:54,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:17:54,507 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:17:54,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:17:55,642 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:17:55,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:17:55,654 INFO L299 CfgBuilder]: Removed 77 assume(true) statements. [2022-07-22 01:17:55,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:17:55 BoogieIcfgContainer [2022-07-22 01:17:55,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:17:55,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 01:17:55,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 01:17:55,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 01:17:55,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 01:17:53" (1/3) ... [2022-07-22 01:17:55,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d17e01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:17:55, skipping insertion in model container [2022-07-22 01:17:55,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:17:53" (2/3) ... [2022-07-22 01:17:55,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d17e01e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 01:17:55, skipping insertion in model container [2022-07-22 01:17:55,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:17:55" (3/3) ... [2022-07-22 01:17:55,663 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-3.i [2022-07-22 01:17:55,672 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 01:17:55,672 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 01:17:55,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 01:17:55,722 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@33efbbd3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53d83369 [2022-07-22 01:17:55,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 01:17:55,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 246 states have (on average 1.6951219512195121) internal successors, (417), 262 states have internal predecessors, (417), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:17:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 01:17:55,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:17:55,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:17:55,730 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:17:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:17:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2022-07-22 01:17:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:17:55,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565724728] [2022-07-22 01:17:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:17:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:17:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:17:55,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:17:55,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565724728] [2022-07-22 01:17:55,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565724728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:17:55,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:17:55,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:17:55,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121415994] [2022-07-22 01:17:55,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:17:55,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:17:55,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:17:55,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:17:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:55,881 INFO L87 Difference]: Start difference. First operand has 271 states, 246 states have (on average 1.6951219512195121) internal successors, (417), 262 states have internal predecessors, (417), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:17:55,984 INFO L93 Difference]: Finished difference Result 715 states and 1205 transitions. [2022-07-22 01:17:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:17:55,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-22 01:17:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:17:56,005 INFO L225 Difference]: With dead ends: 715 [2022-07-22 01:17:56,006 INFO L226 Difference]: Without dead ends: 392 [2022-07-22 01:17:56,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:56,012 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 217 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:17:56,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 725 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:17:56,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-07-22 01:17:56,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 220. [2022-07-22 01:17:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 197 states have (on average 1.3299492385786802) internal successors, (262), 211 states have internal predecessors, (262), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:17:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 294 transitions. [2022-07-22 01:17:56,062 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 294 transitions. Word has length 6 [2022-07-22 01:17:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:17:56,063 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 294 transitions. [2022-07-22 01:17:56,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 294 transitions. [2022-07-22 01:17:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:17:56,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:17:56,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:17:56,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 01:17:56,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:17:56,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:17:56,069 INFO L85 PathProgramCache]: Analyzing trace with hash 765811442, now seen corresponding path program 1 times [2022-07-22 01:17:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:17:56,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915063883] [2022-07-22 01:17:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:17:56,325 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:17:56,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969563409] [2022-07-22 01:17:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:56,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:17:56,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:17:56,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:17:56,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 01:17:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:17:57,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:17:57,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:17:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:17:57,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:17:57,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:17:57,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915063883] [2022-07-22 01:17:57,239 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:17:57,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969563409] [2022-07-22 01:17:57,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969563409] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:17:57,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:17:57,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:17:57,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786582675] [2022-07-22 01:17:57,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:17:57,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:17:57,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:17:57,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:17:57,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:57,242 INFO L87 Difference]: Start difference. First operand 220 states and 294 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:57,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:17:57,304 INFO L93 Difference]: Finished difference Result 455 states and 613 transitions. [2022-07-22 01:17:57,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:17:57,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-22 01:17:57,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:17:57,306 INFO L225 Difference]: With dead ends: 455 [2022-07-22 01:17:57,306 INFO L226 Difference]: Without dead ends: 241 [2022-07-22 01:17:57,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:57,308 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 9 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:17:57,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 525 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:17:57,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-22 01:17:57,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 240. [2022-07-22 01:17:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 217 states have (on average 1.2995391705069124) internal successors, (282), 231 states have internal predecessors, (282), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:17:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 314 transitions. [2022-07-22 01:17:57,319 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 314 transitions. Word has length 103 [2022-07-22 01:17:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:17:57,320 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 314 transitions. [2022-07-22 01:17:57,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:57,320 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 314 transitions. [2022-07-22 01:17:57,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:17:57,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:17:57,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:17:57,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:17:57,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:17:57,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:17:57,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:17:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash 525571696, now seen corresponding path program 1 times [2022-07-22 01:17:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:17:57,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634966389] [2022-07-22 01:17:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:57,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:17:57,700 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:17:57,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288154456] [2022-07-22 01:17:57,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:57,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:17:57,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:17:57,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:17:57,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 01:17:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:17:58,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:17:58,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:17:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:17:58,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:17:58,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:17:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634966389] [2022-07-22 01:17:58,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:17:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288154456] [2022-07-22 01:17:58,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288154456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:17:58,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:17:58,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:17:58,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492443489] [2022-07-22 01:17:58,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:17:58,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:17:58,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:17:58,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:17:58,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:58,701 INFO L87 Difference]: Start difference. First operand 240 states and 314 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:58,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:17:58,754 INFO L93 Difference]: Finished difference Result 495 states and 653 transitions. [2022-07-22 01:17:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:17:58,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-22 01:17:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:17:58,756 INFO L225 Difference]: With dead ends: 495 [2022-07-22 01:17:58,756 INFO L226 Difference]: Without dead ends: 261 [2022-07-22 01:17:58,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:17:58,758 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 9 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:17:58,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 525 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:17:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-22 01:17:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2022-07-22 01:17:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 237 states have (on average 1.2742616033755274) internal successors, (302), 251 states have internal predecessors, (302), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:17:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 334 transitions. [2022-07-22 01:17:58,770 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 334 transitions. Word has length 103 [2022-07-22 01:17:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:17:58,770 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 334 transitions. [2022-07-22 01:17:58,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:17:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 334 transitions. [2022-07-22 01:17:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:17:58,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:17:58,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:17:58,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:17:58,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-22 01:17:58,996 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:17:58,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:17:58,996 INFO L85 PathProgramCache]: Analyzing trace with hash 919938482, now seen corresponding path program 1 times [2022-07-22 01:17:58,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:17:58,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46507536] [2022-07-22 01:17:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:17:59,218 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:17:59,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255846974] [2022-07-22 01:17:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:17:59,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:17:59,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:17:59,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:17:59,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 01:18:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:00,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2970 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:18:00,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:00,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:00,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:00,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46507536] [2022-07-22 01:18:00,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:00,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255846974] [2022-07-22 01:18:00,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255846974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:00,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:00,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:18:00,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300842183] [2022-07-22 01:18:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:00,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:18:00,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:18:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:18:00,349 INFO L87 Difference]: Start difference. First operand 260 states and 334 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:00,392 INFO L93 Difference]: Finished difference Result 505 states and 653 transitions. [2022-07-22 01:18:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:18:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-22 01:18:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:00,395 INFO L225 Difference]: With dead ends: 505 [2022-07-22 01:18:00,395 INFO L226 Difference]: Without dead ends: 251 [2022-07-22 01:18:00,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:18:00,396 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 239 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:00,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 562 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-07-22 01:18:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 246. [2022-07-22 01:18:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 223 states have (on average 1.2600896860986548) internal successors, (281), 237 states have internal predecessors, (281), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:18:00,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 313 transitions. [2022-07-22 01:18:00,404 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 313 transitions. Word has length 103 [2022-07-22 01:18:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:00,404 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 313 transitions. [2022-07-22 01:18:00,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:00,405 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 313 transitions. [2022-07-22 01:18:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:18:00,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:00,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:00,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-22 01:18:00,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:00,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash 6087360, now seen corresponding path program 1 times [2022-07-22 01:18:00,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:00,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679007911] [2022-07-22 01:18:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:00,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:00,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:00,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [320296945] [2022-07-22 01:18:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:00,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:00,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:00,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:00,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 01:18:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:02,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:18:02,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:02,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:02,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679007911] [2022-07-22 01:18:02,150 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320296945] [2022-07-22 01:18:02,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320296945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:02,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:02,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:18:02,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491577926] [2022-07-22 01:18:02,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:02,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:18:02,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:18:02,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:18:02,152 INFO L87 Difference]: Start difference. First operand 246 states and 313 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:02,203 INFO L93 Difference]: Finished difference Result 566 states and 720 transitions. [2022-07-22 01:18:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:18:02,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-22 01:18:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:02,205 INFO L225 Difference]: With dead ends: 566 [2022-07-22 01:18:02,205 INFO L226 Difference]: Without dead ends: 326 [2022-07-22 01:18:02,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:18:02,206 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 232 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:02,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 857 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-07-22 01:18:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 232. [2022-07-22 01:18:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 209 states have (on average 1.244019138755981) internal successors, (260), 223 states have internal predecessors, (260), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 01:18:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 292 transitions. [2022-07-22 01:18:02,213 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 292 transitions. Word has length 103 [2022-07-22 01:18:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:02,214 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 292 transitions. [2022-07-22 01:18:02,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 292 transitions. [2022-07-22 01:18:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 01:18:02,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:02,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:02,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:02,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:02,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2030023538, now seen corresponding path program 1 times [2022-07-22 01:18:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:02,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840176739] [2022-07-22 01:18:02,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:02,580 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:02,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001547069] [2022-07-22 01:18:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:02,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:02,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:02,583 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:02,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 01:18:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:03,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:18:03,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:04,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:04,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:04,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840176739] [2022-07-22 01:18:04,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:04,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001547069] [2022-07-22 01:18:04,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001547069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:04,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:04,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:18:04,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833380593] [2022-07-22 01:18:04,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:04,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:18:04,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:04,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:18:04,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:18:04,016 INFO L87 Difference]: Start difference. First operand 232 states and 292 transitions. Second operand has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:04,051 INFO L93 Difference]: Finished difference Result 416 states and 516 transitions. [2022-07-22 01:18:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:18:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-07-22 01:18:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:04,054 INFO L225 Difference]: With dead ends: 416 [2022-07-22 01:18:04,054 INFO L226 Difference]: Without dead ends: 415 [2022-07-22 01:18:04,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:18:04,055 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 105 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:04,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 936 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:04,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-07-22 01:18:04,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2022-07-22 01:18:04,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 384 states have (on average 1.2213541666666667) internal successors, (469), 398 states have internal predecessors, (469), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-22 01:18:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 513 transitions. [2022-07-22 01:18:04,066 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 513 transitions. Word has length 103 [2022-07-22 01:18:04,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:04,067 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 513 transitions. [2022-07-22 01:18:04,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.333333333333336) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:04,067 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 513 transitions. [2022-07-22 01:18:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 01:18:04,068 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:04,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:04,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:04,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:04,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:04,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1493778997, now seen corresponding path program 1 times [2022-07-22 01:18:04,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:04,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934441000] [2022-07-22 01:18:04,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:04,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:04,475 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:04,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162203041] [2022-07-22 01:18:04,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:04,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:04,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:04,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:04,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 01:18:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:05,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 2943 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:18:05,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:06,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:06,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:06,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934441000] [2022-07-22 01:18:06,072 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:06,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162203041] [2022-07-22 01:18:06,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162203041] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:06,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:06,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:18:06,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648144290] [2022-07-22 01:18:06,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:06,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:18:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:18:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:18:06,074 INFO L87 Difference]: Start difference. First operand 413 states and 513 transitions. Second operand has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:06,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:06,103 INFO L93 Difference]: Finished difference Result 413 states and 513 transitions. [2022-07-22 01:18:06,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:18:06,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-07-22 01:18:06,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:06,105 INFO L225 Difference]: With dead ends: 413 [2022-07-22 01:18:06,105 INFO L226 Difference]: Without dead ends: 412 [2022-07-22 01:18:06,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:18:06,106 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 135 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:06,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 553 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-07-22 01:18:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2022-07-22 01:18:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 384 states have (on average 1.21875) internal successors, (468), 397 states have internal predecessors, (468), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2022-07-22 01:18:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 512 transitions. [2022-07-22 01:18:06,137 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 512 transitions. Word has length 104 [2022-07-22 01:18:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:06,138 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 512 transitions. [2022-07-22 01:18:06,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 34.666666666666664) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 512 transitions. [2022-07-22 01:18:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-22 01:18:06,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:06,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:06,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:06,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:06,358 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:06,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:06,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1365413568, now seen corresponding path program 1 times [2022-07-22 01:18:06,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:06,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307338470] [2022-07-22 01:18:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:06,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:06,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212486509] [2022-07-22 01:18:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:06,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:06,509 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:06,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 01:18:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:08,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:18:08,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:08,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:18:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:08,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307338470] [2022-07-22 01:18:08,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212486509] [2022-07-22 01:18:08,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212486509] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:18:08,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 01:18:08,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-07-22 01:18:08,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395126238] [2022-07-22 01:18:08,387 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 01:18:08,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 01:18:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 01:18:08,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 01:18:08,388 INFO L87 Difference]: Start difference. First operand 412 states and 512 transitions. Second operand has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:08,478 INFO L93 Difference]: Finished difference Result 634 states and 796 transitions. [2022-07-22 01:18:08,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 01:18:08,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-07-22 01:18:08,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:08,481 INFO L225 Difference]: With dead ends: 634 [2022-07-22 01:18:08,482 INFO L226 Difference]: Without dead ends: 600 [2022-07-22 01:18:08,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-07-22 01:18:08,483 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 647 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:08,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1523 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 01:18:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-07-22 01:18:08,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2022-07-22 01:18:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 566 states have (on average 1.2102473498233215) internal successors, (685), 579 states have internal predecessors, (685), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-22 01:18:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 741 transitions. [2022-07-22 01:18:08,497 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 741 transitions. Word has length 108 [2022-07-22 01:18:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:08,498 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 741 transitions. [2022-07-22 01:18:08,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 741 transitions. [2022-07-22 01:18:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-22 01:18:08,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:08,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:08,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:08,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:08,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:08,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1366065166, now seen corresponding path program 1 times [2022-07-22 01:18:08,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355432696] [2022-07-22 01:18:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:08,874 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:08,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731354567] [2022-07-22 01:18:08,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:08,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:08,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:08,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 01:18:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:10,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:18:10,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:18:10,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:10,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355432696] [2022-07-22 01:18:10,801 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731354567] [2022-07-22 01:18:10,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731354567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:10,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:10,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:18:10,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081677636] [2022-07-22 01:18:10,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:10,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:18:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:18:10,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:18:10,802 INFO L87 Difference]: Start difference. First operand 600 states and 741 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:10,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:10,844 INFO L93 Difference]: Finished difference Result 1051 states and 1305 transitions. [2022-07-22 01:18:10,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:18:10,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-07-22 01:18:10,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:10,847 INFO L225 Difference]: With dead ends: 1051 [2022-07-22 01:18:10,847 INFO L226 Difference]: Without dead ends: 598 [2022-07-22 01:18:10,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:18:10,848 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 65 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:10,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 535 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-07-22 01:18:10,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2022-07-22 01:18:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 564 states have (on average 1.2092198581560283) internal successors, (682), 577 states have internal predecessors, (682), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-22 01:18:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 738 transitions. [2022-07-22 01:18:10,862 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 738 transitions. Word has length 108 [2022-07-22 01:18:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:10,862 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 738 transitions. [2022-07-22 01:18:10,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:18:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 738 transitions. [2022-07-22 01:18:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-22 01:18:10,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:10,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:10,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:11,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-22 01:18:11,088 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash -353330685, now seen corresponding path program 1 times [2022-07-22 01:18:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:11,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725623638] [2022-07-22 01:18:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:11,280 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:11,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [212127549] [2022-07-22 01:18:11,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:11,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:11,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:11,284 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:11,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 01:18:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:18:12,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:18:12,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:18:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 01:18:12,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:18:12,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:18:12,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725623638] [2022-07-22 01:18:12,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:18:12,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212127549] [2022-07-22 01:18:12,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212127549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:18:12,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:18:12,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 01:18:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299210142] [2022-07-22 01:18:12,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:18:12,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 01:18:12,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:18:12,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:18:12,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:18:12,962 INFO L87 Difference]: Start difference. First operand 598 states and 738 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 01:18:12,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:18:12,998 INFO L93 Difference]: Finished difference Result 1136 states and 1408 transitions. [2022-07-22 01:18:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:18:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 123 [2022-07-22 01:18:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:18:13,003 INFO L225 Difference]: With dead ends: 1136 [2022-07-22 01:18:13,003 INFO L226 Difference]: Without dead ends: 596 [2022-07-22 01:18:13,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:18:13,005 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 15 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:18:13,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 533 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:18:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2022-07-22 01:18:13,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2022-07-22 01:18:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 562 states have (on average 1.208185053380783) internal successors, (679), 575 states have internal predecessors, (679), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 19 states have call predecessors, (28), 28 states have call successors, (28) [2022-07-22 01:18:13,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 735 transitions. [2022-07-22 01:18:13,020 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 735 transitions. Word has length 123 [2022-07-22 01:18:13,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:18:13,020 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 735 transitions. [2022-07-22 01:18:13,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-22 01:18:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 735 transitions. [2022-07-22 01:18:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-22 01:18:13,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:18:13,022 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:18:13,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:18:13,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 01:18:13,231 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:18:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:18:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash 623227202, now seen corresponding path program 1 times [2022-07-22 01:18:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:18:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007234722] [2022-07-22 01:18:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:13,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:18:13,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:18:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035283795] [2022-07-22 01:18:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:18:13,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:18:13,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:18:13,308 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:18:13,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 01:20:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:20:51,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:20:51,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:20:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-22 01:20:51,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 01:20:51,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:20:51,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007234722] [2022-07-22 01:20:51,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 01:20:51,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035283795] [2022-07-22 01:20:51,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035283795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:20:51,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:20:51,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:20:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421190036] [2022-07-22 01:20:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:20:51,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 01:20:51,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:20:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:20:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:20:51,314 INFO L87 Difference]: Start difference. First operand 596 states and 735 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:20:51,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:20:51,363 INFO L93 Difference]: Finished difference Result 1143 states and 1433 transitions. [2022-07-22 01:20:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:20:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 138 [2022-07-22 01:20:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 01:20:51,368 INFO L225 Difference]: With dead ends: 1143 [2022-07-22 01:20:51,368 INFO L226 Difference]: Without dead ends: 599 [2022-07-22 01:20:51,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:20:51,369 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 01:20:51,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 806 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 01:20:51,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-07-22 01:20:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2022-07-22 01:20:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 564 states have (on average 1.2092198581560283) internal successors, (682), 578 states have internal predecessors, (682), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (34), 19 states have call predecessors, (34), 28 states have call successors, (34) [2022-07-22 01:20:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 744 transitions. [2022-07-22 01:20:51,389 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 744 transitions. Word has length 138 [2022-07-22 01:20:51,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 01:20:51,389 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 744 transitions. [2022-07-22 01:20:51,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 01:20:51,389 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 744 transitions. [2022-07-22 01:20:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-22 01:20:51,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 01:20:51,392 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:20:51,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:20:51,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 01:20:51,607 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 01:20:51,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:20:51,608 INFO L85 PathProgramCache]: Analyzing trace with hash -268398914, now seen corresponding path program 1 times [2022-07-22 01:20:51,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:20:51,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304533399] [2022-07-22 01:20:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:20:51,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:20:51,677 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:20:51,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543488461] [2022-07-22 01:20:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:20:51,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:20:51,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:20:51,679 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:20:51,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process